Mercedes battery drain overnight cost The best way to check is with a fuse ammeter that plugs into the fuse sockets where check should be made on the door and seat control fuses. Red warning hasn't been back, all is well. Oct 18, 2022 · I learned for my stereo cars, getting batteries local was the best deal. I thought it was suspicious as no power was inadvertently left on and the battery drained to about 10-11V. Many use battery tender. the "platinum" or whatever best option at my local auto parts shop. 75V Full 12. I took the battery out, and the place gave me a new one. Battery has also been draining Charged it up started the car fine put a multimeter on the main battery showed 14. Anything over 0. But, if you recently replaced your car Dec 6, 2011 · Battery BTW is only 1 month old. 8 days with a steady draw of . After fully charged it goes away. It's a 2048 watt-hour battery (your sprinter starter battery is about (95 ah*12v=) 1140 wh so it does have enough capacity to really help. Feb 22, 2012 · Recently I got this 03 E320 with 84k miles. Recharged battery and it held for 2 days. Ammeter suggested 8 amps drain,disconnected fuse for sat nav,drain now 5. 22 amps. 5v. A 0. The full repair solution was to remove the faulty unit entirely. Battery replaced in mid December. I’ve replaced the battery ran a testing light on all the fuses when the car is off and key removed and can’t find anything that would be causing the battery to drain as fast as it does. 1, 0. July 2, 2022 — A Mercedes battery drain lawsuit alleges defective electrical systems leave drivers Jan 26, 2007 · I've owned a number of English and Italian cars, so have been through the battery drain business more than a few times. 013 amps. i have tried 2 batteries one been a brand new one but still drained. The battery (hence mileage) drops few points overnight. Sep 11, 2018 · 1990 300e, Battery was new in oct. 2003 E320 battery drain issue Just as the title says, I have a batter drain issue. Mar 25, 2015 · No cup holder in the car and not sure about the amp, but the radio does work if the battery goes flat and then gets boost from a jump start, but other than changing the battery in Jan the car has run perfect and now since the battery change it all started with radio not working and battery drain, seems the 2 are connected somehow. However, I noted that it was supplied with Code 673 "BATTERY WITH INCREASED CAPACITY" My criteria for the percentage of discharge is based on the following voltages measured at the battery terminals: 12. Apr 26, 2022 · I just bought a 2008 E350 and the battery needs to be jumped every morning. This typically occurs due to electrical components that continue to draw power even when the vehicle is off. Isolate current eater. After recharging the battery, I took the positive cable off and put my ammeter between the post and the cable, and when I did a relay under the battery clicked. I recharged it and 3 nights later it went flat again. In 10 days this amounts to 60 miles which is significant. New battery in July. 5A. Drivers side mirror signaled a problem, then the alarm would start going off. Dec 13, 2021 · have bought a new battery which was charged and fixed. We put a charger on for a few hours and it runs fine, but then goes dead again. From electrical issues to faulty components, learn what might be causing your battery to lose its charge and how to address the problem for optimal battery performance. What could be still on that uses that sort of amperage? Any and all advice appreciated. Firstly, please let me apologize for starting another thread about battery drain, I know it has been done to death but it is driving me mad. 7 to 12. Basically it's draining your battery whenever the car is off. So, lots of short trips drain the battery. 1A, however, one thing that has been the result of excessive battery drain is a malfunctioning CD player not going to "sleep" with the ignition off. the local merc specilaist diagnosed a new multimedia unit or whatever they call it at a cost of £4k in total. Mar 7, 2020 · Have you got yor aux battery isolation relay checked? If aux battery is again bad and relay jammed, it will draw main battery. Thus the problem just started. Then start pulling fuses to find the offending circuit. Oct 5, 2024 · In addition to the costs of repeated repairs and other services, Mercedes owners may face decreased value for their luxury vehicle due to a known defect. It could well be your battery is not getting a good charge and does not have enough to keep everything going over night. Get a new, AGM, H8 that fits the car. After recharging and a new battery, I continued getting a flat battery. No warning lights. 45V - 12. Dec 31, 2015 · I would expect normal drain to be less than 0. Oct 22, 2024 · I have been wrestling with my 2006 CLK 500 with a parasitic battery drain for years. But, every morning, the car is completely dead and needs jump started. New battery a year ago. Checking the battery charge is under 12 volts. I have searched the forum and found the most common faults seem to be alarm siren, command system and memory seats. Dec 21, 2024 · A new car battery can drain overnight due to various issues. I've tried to find a good wiring diagram but can't find what I'm looking for. A bad alternator/regulator can also drain. 4K views 2 replies 2 participants last post by 43sqd Jun 21, 2019 Nov 24, 2013 · After going through the procedure of checking each fuse for battery drain it showed that when fuse #8 was removed the drain dropped from 130ma down to 20ma. A federal lawsuit has been filed against Mercedes-Benz and Daimer AG, claiming breach of warranty, violation of federal and state laws and concealment of May 6, 2013 · I did this until the replacement battery needed to be replaced again around 4 years after purchase. Car will start right up after a good charge, but seems to have a parasitic draw and won't even light the gauges or chime when the door is opened after an overnight soak. This video walks you through the steps to find components in your Mercedes that are draining the battery. Dec 29, 2024 · What Actions Should You Take if Your Car Battery Drains Overnight? If your car battery drains overnight, you should take specific actions to diagnose and resolve the issue effectively. Jan 8, 2014 · The radio is also a common battery drain. Jan 19, 2020 · I have been working to reolve an overnight ghost battery drain on a 2007 SL550 The attached pictures show the method I used to find out were the drain was coming from ( In this case the rear SAM) The same method can be applied to the front SAM units. The boot light draws about an amp of power so can quickly drain a battery overnight. . Jan 17, 2014 · I just found out through their tech that battery-killers are a known problem with this radio. Ensured no lights inside were left on. I had a spare battery which I used for a while and then bought a 019 AGM battery Aug 3, 2022 · bought car with battery drain,however worse than advised. I drive the car on monday, and up until then, everything was just fine. In other posts, I have mentioned that I have a genuine Mercedes battery and that is because, with my discount, the Mercedes battery was the cheapest option, but as long as it is an H8 AGM that fits the car, you’re good. Nov 15, 2010 · Part of the problem with charging the battery, even during normal use on the alternator, is that hydrogen and oxygen is evolved depleting the acid electrolyte. 8-11. it reads in good shape. But the problem continued and I had the Benz dealership look into it. Given how inconvenient it can be to have a battery constantly draining, learning prevention tips is the key to maintaining a reliable car battery. W211 have couple of different specific regulator packages, and wrong type is not communicating with car (though it should not cause draining and limp mode charge is 14,3V constantly). 6v 18 hours later. It has a brand new alternator and a new battery. Dealer replaced the alarm but the car continues to drain. Also, using roof with engine not running. This article demystifies the issue, outlining signs, causes, and troubleshooting steps to ensure your vehicle operates smoothly. It had power drain and would not start up if not driven for a day and now even hours. I have a 2003 E500. For starters, pull all the fuses out of the panel and see if the battery holds a chrage overnight. Apr 19, 2024 · Identifying the signs of rapid battery drain in Mercedes-Benz vehicles is crucial for early detection and resolution of the problem. 24 hours later: new battery dead also. If you notice any of these signs, it is Mar 12, 2021 · Your Mercedes 1992 500sl Mar 12, 2021 1992 500sl the battery drains overnight and was looking for advice on where to start the search for the problem. I had a mechanic check for a draw and he found none. cheers paul 2003 mercedes e500 sport package, battery gets drained overnight, i replaced both battery's, alternator, accessory battery relay, 2 months ago , checked the rear battrey amp draw when car is parked and off, reads 0. Next Jan 2, 2011 · Problem: Battery drains overnight. (Alternator failures are usually regulator failures) Come to think of it, something like this happened b4, MB replaced the battery and alternator once already. I removed the battery but did not install the new one until the next day. Here are the main actions to consider: 1. Overnight ? Dies. 3K views 2 replies 2 participants last post by Noodles Dec 20, 2019 Jan 17, 2009 · Battery drain solution. Pulled the 3 connectors on the drivers seat. 5 amps. Oct 5, 2019 · W211 has 20-20 control modules faulty device keeps CAN bus 'awake' and that will drain the battery. Battery keeps draining. After driving ~20 miles, battery is at 12. I need to figure out what is causing the drain. As far as I can see on Car Fax this is original alternator. 9 Volts so alternator appear to be fine. Car will now drain battery. I have a new battery and alternator works fine. 00A draw. 8 volts. It took 12 hours to get it back to normal at 10A charging rate. was gone for 10 days and when I returned battery was fully charged. On average, a new car battery in the Philippines will cost you around Php 5,000, depending on your chosen battery. It would have to be in the order of about 4 amps to do that, there are few things that can draw that much, the alternator reg pack being one of them. Fortunately for Mr Stephens, our expert Mercedes technician Jason Aldridge was on hand to diagnose and correct the issue. The battery and alternator are fine, but the battery goes flat over about 5 days. The actual switch that solved the problem cost £5. Left doors un-locked. Be at that mine was already "flat"after 2-3 days. A sympathetic dealer installed a new alternator at 65,000 and still the battery drain/dead battery problem persisted after several days in a nice home garage. Overall in good condition, but not without any issues. 35A. 5 days, 5 days, yes, DEAD. If your mechanic can't hook you up with some, try going to NAPA. Some of which include the radio, navigation unit, Apr 2, 2015 · You connect it to the positive battery post in the trunk, it takes about a half hour, mostly because the battery wires are hard to adjust. Unhooked the battery, checked for drainnothing found. Feb 6, 2023 · This article will discuss the common causes and solutions for the Mercedes battery drain overnight problem. Battery Tenders are usually very low-current devices. With the battery hooked up to the car, there's a slight load. Park the car overnight and it will repeat. Hook up a test light in series with the battery ground cable. Battery was replaced by dealer in March 2023. After I drive my car for a while- the battery will drain rapidly overnight. Ammeter read approx Jul 15, 2020 · About 2 months ago I went to start my 2008 2500 after sitting for about a week and the battery was flat. Common culprits include lights left on, malfunctioning accessories, or a failing battery. I have installed a cut off switch to the negative side of battery. We discuss the most common causes and provide easy solutions to fix the battery going dead problem. Before you do anything, check for a parasitic electrical draw, and find out what may be causing the short circuit and draining your battery. (Will try the passenger side today). Update: Dealer recharged battery, says nothing wrong with the alternator. My battery reads about 12 volts now at about 50 degrees. If the battery is not holding up then do a quiescent check for things like memory seat modules can leak, a very easy check to do Jan 26, 2015 · I have a 2002 S500 which has a battery drain issue if left overnight. Roof uses a lot of power and of course, you then have to put it back at end of trip, using yet more power. 8 volts at rest. Pull the 9 fuse (clock and such) drain drops to . I have a 0. The battery drain was so bad the car would be completely flat after four hours. 51V 25% Jan 9, 2011 · At the beginning of December when we had snow and very low overnight temperatures (for Wimbledon) my battery went flat. The voltage at the battery with the engine running is good and the battery charges correctly. Battery before no start is 10. It is a AutoZone battery and they have checked it twice now and battery is good so I must have some parasitic drain overnight. 85A draw will drain the battery to less than 50% of capacity in around 2. , but the ECU decides that the battery doesn't has enough power for the startcycle and says "nogo". 5v (alternator working as should?). Nov 15, 2010 · You can buy DC current clamps reasonably cheaply now which you could place on the positive cable from the battery to check the static drain on the battery (Be aware that these cars can take anything up to half an hour for all the consumer units to go in to "sleep" mode). Jul 14, 2021 · I have a 2010 c300 fairly new to me. After a little while I finally sat down and started to run through diagnostics on my own. Dec 18, 2019 · 2003 E500 battery drain overnight Jump to Latest 1. 8v. Measure current draw amps. Vehicle is 96 E320. It arrived on tow truck with battery voltage at 2. They told me (over the phone) today that the drain is happening from DOM lights section and part cost $700 to replace them. Jump started and drove it for about an hour then it sat for another week and again had a flat battery. Mar 12, 2010 · So, I took my car to a MB/BMW auto shop. I have removed the sat nav disc as was Dec 20, 2024 · How Can Faulty Components Lead to Car Battery Drain Overnight? Faulty components in a vehicle can lead to car battery drain overnight due to issues like parasitic drains, malfunctioning electrical systems, or battery-related problems. Jul 2, 2022 · Class action lawsuit alleges the 12-volt and 48-volt batteries drain and strand consumers. 66V - 12. Feb 27, 2019 · I have a Mercedes E-320 2004. 5 years into a 3 year warranty. If there's a strong drain, the bulb will light. I went out to start the car on saturday, and the battery was at 2. Jul 28, 2011 · Hey guys, new member here. We have gone to the point of actually Sep 7, 2017 · hi all, i have a c180,1996,1800cc with a battery drain. By following the advice and steps provided in this Jan 27, 2023 · So this vehicle has occasional habit of killing battery dead overnight. My 140 of the same year and design will go 4 weeks no problem. They described the problem as faulty steering wheel sensor leaking power. The average cost for a Mercedes-Benz C300 battery control module replacement is between $1,000 and $1,500. Mercedes-Benz is a renowned brand that has been providing its customers with high-quality vehicles for over a century. Aug 2, 2015 · Hi All. Aug 2, 2020 · 12. 4 volts. Discover the common culprits that can drain your Mercedes-Benz car battery. 9 amp so I start pulling fuses under th … Oct 5, 2010 · The battery was charged off the car overnight up to about 10. May 2, 2024 · By following these steps, you can identify the cause of the battery drain issue in your Mercedes-Benz E-Class and take appropriate action to resolve it. Inspect battery terminals and connections for corrosion. Dec 8, 2020 · I have leased a new EQC premium. Since then it has been OK, until left for about 10 days, when the car wouldn't start (Voltage just over 6 Volts). If it is a component failure, repair will be somewhere around $250-$300; but if it is a software problem (including something wrong with a logic board) they would need to send it out and the cost would be closer to $450-$500. If the battery couldn't handle what I was doing, it was a free replacement within 2 years or prorated within 4. BUT!!! Oct 27, 2021 · Keep your car battery in good condition to avoid unwanted replacement costs. 5-8. Measure charge voltage. Sep 6, 2009 · Overnight battery drain Jump to Latest 17K views 41 replies 13 participants last post by bereng Oct 3, 2009 Jul 3, 2008 · 230 battery draining Hi Colechelle, Thanks for your quick reply. Depends how big is the drain, 0. Car is normally driven every few days at least a few miles. We have pulled every fuse in the car for testing and there is still a drain on the battery. I trickle charge and it happened again. 04 amps)when it's disconnected. I called MB Road Side Assistance and he tested the battery ad said you have a good battery, but you have a battery drain issue. Aug 9, 2007 · My battery was replaced in Jan 2007, original new MB battery done by the dealer. Battery drain can have a significant impact on the performance and functionality of Mercedes-Benz vehicles, including the E-Class model Mercedes Battery Drain Overnight (Mystery Solved) r/DIYAutoRepair 2012 Buick Regal battery drain from Onstar module upvote Jun 21, 2019 · dreaded overnight battery drain?? Jump to Latest 1. Some of you kind & helpful Folks might remember my recent Nightmare of 3 x ‘flat’ battery issues within a month, 3 x roadside rescue & jump starts, 2 x replacement new batteries 'dying' overnight, being effectively Grounded for 2 weeks during the Christmas & New Year hols etc. Jul 31, 2008 · Results: The hitch is now fixed; oil level sensor replaced (pressure switch 001-153-03-32); with the new SAM, the Telaid problem went away, battery drain down has not repeated, and the no-crank, no-start problem has not occurred again Dealer also reported the new SAM unit IS compatible with aftermarket proportional controllers. 97v. When engine is running battery terminals read 13. Lately when the car was not being driven for over 4-5 days, the battery is drained down to a level that will required an external boost to get started. I removed the fuses for the interior and boot lights. 35A drain and the consumers message will come on after a couple of weeks. The battery was fully charged but drained overnight again. Mar 30, 2024 · In this comprehensive guide, we have explored the various aspects of Mercedes-Benz GLE battery drain issues, including understanding the problem, identifying signs of battery failure, troubleshooting, the role of the 48V battery, prevention strategies, and what to do when your battery is dead. Car won't start although lights come on. I checked voltage after a couple of hours, and it showed 12. So I'm thinking theres a drain somewhere, something is pulling a charge from the battery overnight. It won't cost you much at all. Feb 5, 2011 · My options were to either try and replace the amplifier at a close to $1000 cost, or get in the habit of pulling the fuse for the amplifier that is in the trunk fuse box next to the battery. The battery should be kept topped up over the plates: problem is these batteries are sealed, once they start failing to hold their Aug 14, 2006 · The fault was intermittent so difficult to spot. But 24 hours later: 2nd new battery dead again. Sometimes the battery lasts a bit longer. That's if no lights, heat etc. For quite a while my 2003 W211 E270 CDI has been intermittently showing me the Battery Protection warning. 3. Started vehicle, shut offbattery down to 11. 30 amps is normal. With practical tips and insights, you can Battery will still drain overnight. Alternator is charging very well (14V). Three different dealers have diagnosed the problem overnight with no detection of any battery drains. 2. 7 is a battery that's fully charged at 70 degrees and it's the no load voltage. When jump starting the car the car runs fine and I have no-warning light on. Sep 20, 2023 · Sorry. So I got a jump start and drove to the battery shop (Halfords) - my battery was 2. May 20, 2022 · How Much Does It Cost To Replace A Mercedes Battery Control Module? If you own a Mercedes-Benz, the cost to replace a battery control module will depend on the model of your vehicle and the year it was manufactured. Jun 8, 2021 · When Mr Stephens sought our help with his Mercedes-Benz SL350 2003, the issue was clear, and the battery was completely drained. Nov 9, 2011 · W211 Parasitic battery drain Hi. By leaving the car without power over night seemed to resolve the drain. Apr 15, 2022 · The earlier W221 have two batteries, a consumer battery in the trunk and a starter battery in the engine bay. Wondering if anyone has the electrical diagrams from the f81 pre fuse output in the trunk (next to the battery) to the components it supplies. Whether you're a Mercedes owner or just curious about your car's electrical system, this Sep 29, 2024 · A forum community dedicated to Mercedes-Benz owners and enthusiasts. If after I drive my car and switch off the battery and quickly reconnect it-the draw stops Apr 30, 2014 · Battery is low but sound, but AZ claims my regulator is toast. I'm going to call the dealership this week and see if i can get the test and update while asking about the DCM. However if that happens in couple of hours, that might indicate bad battery or insufficient alternator charge voltage. 6v. There was a sticky how to hunt quiescent current? Jan 13, 2025 · Evening all, Seeking some confirmation bias ahead of making a warranty claim ;) New to me 2020 G63 - owned for three weeks. 12 A respectively. The fault is in the GPS unit and the drain went away when the Nav CD was ejected. For 2 years until I p/x the car. It's $115, and it works great! Comes with a key FOB to connect and disconnect the battery. Now, if your car battery is already running for around four years, then it could mean that it needs to be replaced. Parasitic drains occur when electrical components continue to draw power even after the vehicle is turned off. 3 doesn't mean the battery is bad. Battery tested as still good so AAA wont replace it under warranty yet. Now here is the weird thing. Rather than change the COMAND unit, I ejected the CD and the drain went away as reported on this board. 50 is a problem, most people fit a trickle charger and problem solved. I have already ruled out the power seats by pulling the fuses and letting it sit overnight and it still dies. Oct 9, 2023 · Reasons for drain commonly: Car needs roughly 10 miles to put the energy back used for starting. I have also put an ammeter clamp around the positive cable of the battery and it reads 0. I connected the clamp meter and waited a couple of minutes till everything cooled down – current went from quite high and settled at 0. Also, unless you have a deep cycle battery (like an Optima), every time you "flatten" the battery, you reduce the level to which the battery can be recharged, thus reducing the Ah rating and the CCA rating. I took to Indy Mercedes shop and they said faulty air block and about $650 to replace. Does any EQC owners throw some light? does this happen to all cars? Jul 19, 2015 · I have a 2003 e500 and the battery drains out every night. 183, and . 45v. Jump to Latest 203 views 2 replies 2 participants last post by diogoonair Sep 4, 2024 Jun 17, 2009 · I have an 2001 ML320. Dec 29, 2011 · I think I may have your answer - From a personal review from a C320 - The problem i had with my c class is that the battery kept draining over night, the main dealer said i needed a new battery and that would sort the problem, so i agreed at a cost of £200, the next morning i had a flat battery again, phoned the main dealer who were rude and didnt seem to want to know. I replaced the battery and hey presto the drain stopped. However, like all cars, Mercedes vehicles can sometimes experience issues. Sep 3, 2024 · Battery draining overnight. basically my battery on my 2002 c180 W203 died overnight so i replaced the battery with a Re-coned one i thought the problem was fixed but then two days later it was dead one morning so i took it back to the place i got the battery from and they gave me another one but same problem so i took it back they Nov 29, 2024 · Can a Car Battery Drain Overnight? Yes, a car battery can drain overnight. Once you drive the car for a while it will be the battery message in black. Follow the below tips to keep a fully charged battery, extend the lifespan of your battery, and reduce the likelihood of overnight drains: Customer: 2010 GLK 350 - Battery goes dead in a day or two. 60 from main dealer and took me one minute to fit!! Jul 29, 2019 · Battery completely drained after recent heavy rain, car was parked nose downhill, I found the water drain under the bonnet was completely full of water which after investigation was caused by a kinked drain pipe. If I take the negative cable off, the battery holds a charge indefinitely. Does the Mercedes-Benz battery die when you have the car parked overnight or leave it parked for a few days? This step-by-step guide will explain how to troubleshoot this problem, the basics of battery drain problems, why the battery dies overnight, most common trouble spots. Nov 19, 2014 · I recently changed my battery because I had exactly the same symptoms. I checked the current drain it was . After a lot of testing I found tha May 17, 2016 · To drain the battery overnight is some draw. Seems to be charging fine at 14v+ with car running. 8 volts, Alternator is bad I think. 05 amps, there must be somthing starts later which i cant see or hear other than the blower motor , i disconnect the blower main power and still the rear battery gets drained Oct 25, 2014 · Hi, My 2003 55AMG has a battery drain problem. Battery change seems kinda scary, for al MB’s technology the 230 seems a bit sensitive unless it’s a form of extra anti theft protection, at the cost of vulnerable SAM’s modules? I will certainly do as you advise and work on the fuse route with an ammeter. One of the most common issues faced by Mercedes owners is […] Jul 27, 2014 · so my uncle (well more my auntie actually) have asked me to fix there s430 battery drain problems. Two brand new batteries were put in along with much newer and updated battery control module. Nov 20, 2024 · A “50%” health reading is lousy, that battery is no good any more. Check for interior lights or accessories left on. Car starts and runs fine with jump. How much your alternator is charging. i advised them to ditch this advice as the car isnt even worth 4k and give it to me to look at. Your Mercedes 2002 Jan 6, 2023 · Apologies for this long Post but it might be of help to others here with similar issues. Various factors can lead to this situation. i can leave the car for about 3-4days without been touched and the battery will drain to 10volts or less. I believe in 2011, they had only one combined battery in the engine bay. Sometimes it will start and show battery low message in red. Sep 20, 2020 · Good afternoon Recently changed the Battery Control Module on my 2003 W211, due to corrosion in the electric connector. Dec 30, 2024 · A healthy car battery should retain its charge overnight. On January 15th it died overnight. There is no reason my car should be draining overnight and driving once a week minimum should be enough to keep it starting without a jump. I've got a hell of a battery drain and I've narrowed it down to that leadamp readings drop from 4 amps to 40 mA (0. Where should I start looking? Jul 4, 2009 · I have a 2002 C240, and my battery goes dead in 1 or 2 days. I probed all the fuses and nothing was significant, besides a blown fuse 47 and some minor drains. If not, the problem will be in the non-fused legs of the wiring harness, which is a smaller scope of work, though tricky. Oct 20, 2024 · Common Causes of Battery Drain: Faulty alternators, malfunctioning components, and left-on accessories contribute significantly to battery drain in Mercedes vehicles. More info. The alternator is ok and charges the battery that is why during the day when am driving the car, there is no problem unless I park it for a very longtime please help Oct 4, 2016 · Hi guys i am back again just invested in a low miles SL500 on a 2003 for a weekend play thing the car is great other than one issue, ive been on here before but had to open new account as could not remember my details :dk: Ok the issue i have is a common one consumer battery is Mar 29, 2009 · 2000 ML430: 7 batteries and now at 125K miles. Oct 25, 2017 · I ended up, disconnecting the negative cable from battery to keep the battery from draining. I changed battery and put a BRAND NEW battery but after car sits over night its completely dead. However when I park car for the night, it can’t start in the morning. 12. Dec 21, 2019 · A good battery will give about 12. Obviously no internal lights on. 2nd new battery fitted under warranty in the case first was ‘faulty’. Diagnosing the Dec 6, 2021 · Dear All, I have recently changed my battery after leaving the car (w211 e320 2006) stood for 10 days. Try to start car not enough power, battery measures 11. Usually only for a few minutes Nov 1, 2009 · Assuming a 65Ah battery, it would be fully discharged in 7. 5 volts. any MB guru to advise me what to do? Hi all, Before tearing out whats left of my hair!!! I own a really nice 2004 320 CLK Convertible, great car to drive, heavy on the fuel but nice!! Had it 3 years and have had now 3 severe battery drains that the local indie garages cannot cure. Otherwise AT LEAST get the cables replaced if they are corroded at all. It happened twice before. An auto electrician will do a leak test and pull fuses in turn until issue goes away, but can take a long time so costs quite a bit. Apr 3, 2007 · The Mercedes battery (7 years old) in my 2003 CLK 320 suddenly died (key wouldn't even open the lock), so I replaced the battery with a new one. But the same problem again Dec 30, 2021 · The Bluetti has a lithium battery, so it can deliver over 13 volts on the DC side that's good. Apparently when Alternators go wrong, this is a common fault. Took it to local garage who found that when car was at-rest (not started) the Alternator was drawing 1. The car had a red battery warning on when it was initially purchased. Some common symptoms of Mercedes-Benz C-Class battery drain issues include a weak or dead battery, difficulty starting the engine, and frequent need for jump-starts. This took quite a while though - probably 5/10 minutes for the system to stabilise but it was evident that something positive was happening as there was an immediate reduction of drain Jan 26, 2025 · Steps to Prevent Future Battery Drains. I bought the part and had someone install for a total of $400 but the same problem continues. I have no lights on, doors are shut, trunk is Jan 18, 2018 · 2003 E320. 3rd higher-spec Bosch battery bought just in case the others were, er, ‘dodgy’ (supplied by my local Fast Fit centre). Common causes are leaving the lights on, parasitic draw from accessories, extreme temperatures, damaged connections, a faulty alternator, and frequent short drives. It's an AGM of appropriate size. I have a constant . I searched this forum for common battery drain on E320 and most of them was seat control unit, not DOM lights units. Oct 2, 2016 · im not sure if my battery drain is still a problem i did get a new (re-coned) Battery. Environmental Impact: Extreme temperatures can negatively affect battery performance; parking in a garage or using insulated covers can mitigate these effects. 130 amp draw. The next morning, it was down to 11. Though I rarely had to deal with that, I have saved the cost of a battery or two over the years. As the title says, I am having problems with the battery getting drained when the car would sit overnight. i have also put my c180 battery on another car and not used for Jun 22, 2021 · For me it was a slight drain on one of the rear window motors. It will also automatically disconnect the battery if voltage drops below 12V. So, off to the dealer tonite, see what they say. I was going to replace the battery but it was hard to find something similar here in Feb 19, 2020 · So, I have had a parasitic battery drain problem in the e500 wagon/estate. Symptoms: - Stop/Start function has never worked on the car - including after long motorway driving when you would expect battery to be fully charged and any faults Apr 11, 2013 · The battery drain on a 129 of 1999 will be 45ma when locked, there is no going to sleep circuits on a 129. Jan 18, 2024 · But. Jun 7, 2005 · I monitor the battery regularly using a digital voltmeter, and so far it has not let me down. Oct 10, 2023 · I drove the vehicle for about an hour. I have seen this every day and in last 2 weeks on average 5-6 miles have vanished overnight. However, a weak or old battery may lose power within 8-12 hours due to parasitic draw. The battery is new and was re-tested to ensure thats not the problem. Well, the battery is not exactly flat, windows,lights and everyhting seems o. I drive to work and back 20 miles each way and check when I get home battery is at 75-80 %, charging level 12. Sep 10, 2012 · For the last nine months I've been battling with a battery drain problem. Aug 14, 2021 · I have determined that it is something that is fed off the F81 cable on the power distribution block just in front of the battery because I disconnected it overnight and the battery did not die. Learn about the crucial role of the auxiliary battery in powering essential features, and gain confidence in recognizing early warning signs. If the car's left overnight, the battery won't turn over the engine. Mercedes Benz Battery Drain Lawsuit. I have a 2003 e320 w211 model. Loses 2 volts overnight. It was 5 years old and failed capacity test @350 CCA. The impact of battery drain on Mercedes-Benz vehicles. the car is a yr 2000 with 200k on the clock. So much so I stopped using it. k. Several simple attempts to diagnose before taking to the mechanic: 1. Battery load test is good. Any ideas what the I'm thinking that the battery drain has something to do with my car not coming out of limp mode the reason why I came on to this site is because my Mercedes is stuck in limp mode because I bent a pin in the plug on the transmission I fixed all that and still stuck in limp mode I've cleared all the codes except for one on the transmission and I think that has to do with the drain when I bought Jul 12, 2021 · Hi I have 2008 Mercedes e350 and battery drains overnight so I disconnect negative battery terminal and connect voltmeter between and I found the drain is 7. Come join the discussion about performance, classifieds, troubleshooting, maintenance, and more for all Mercedes-Benz and AMG models! Jul 2, 2020 · Let it sit overnight and the battery will be completely dead in the morning. I assumed it to be old battery and got it replaced without thinking much about it. :crybaby2: Well. Aug 4, 2008 · But after a couple of months, it looks to me that the battery in the remote is draining out too quickly every 2 weeks as when I cannot open the doors at all, I put in new batteries and no more problems after that. Can anyone take pics of both sides of the CR2025 battery and how its held in place? Dec 3, 2003 · RE: Cold Weather & Draining Battery - What To Do? Ok, if you can get that drain found, that would be good. This was an expensive lesson for me as it cost in the end nearly two hundred pounds and about two days off work. 2018 with 67,000 miles. Once jumped warning indicator of drivers side mirror signal and airmatic come and go. Will start, stop, great all day and even into the night if I have to run out. 72V. Dec 2, 2011 · My mid-2003 CLK320 failed to start some weeks ago. The did a voltage drop test and fuses 64, 55, and 27have draws of 0. 009 Those seem like the normal drain you would expect. Oct 23, 2024 · Discover what an auxiliary battery malfunction means for your Mercedes. Apr 7, 2015 · To check for a current draw, put an ammeter on it and see how much current it's drawing. Put it 5 minutes on the charger and it deiceds Nov 29, 2016 · Battery drains close to dead overnight, needs a quick jump and it's fine for the day. If I charge to 100 % overnight, in the morning still 100%. Jan 5, 2013 · Last 2 mornings car would not start.
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