Mercedes 48v issues battery symptoms. This was completed at the cost of 1.

Mercedes 48v issues battery symptoms any ideas? View attachment 2612812 View attachment 2612813 Hi i am having the same problem with my 2016 model. I had a new 12 volt battery installed after some minor electrical issues and 2 days later the whole system went within 30 seconds of the warning lights coming on. Here are some common symptoms of an aux battery malfunction on a Mercedes: Oct 28, 2024 · Fueled by the Mercedes EV explosion, the Korean government is set to implement an EV battery certification system that requires automakers to get an examination of the EV batteries before they release EVs in the Korean market. Sep 23, 2022 · Related: 7 Most Common Mercedes-Benz GLE Problems (Explained) 6. Demonstration of Mercedes 48V hybrid battery testing reprogramming kit. co May 14, 2023 · I have a 5 year old A8 that broke down just over a week ago. Which Mercedes Models Are Affected? Dec 24, 2021 · A second defect has been alleged relating to Mercedes-Benz vehicles with 48V/12V battery hybrid systems. 5L EQ engine. Feb 5, 2024 · Choose the right battery. The defect causes vehicles to shutoff, overheat, go into limp home mode, or lose acceleration at highway speeds. org forum is one of the largest Mercedes-Benz owner websites offering the most comprehensive collection of Mercedes-Benz information anywhere in the world. The second generation GLS uses a 48-volt mild hybrid system called EQ Boost which has had a few reports of failures. 930 It has the 48V Hybrid system with ISG and the e-booster electric turbocharger Car came in because of flood damage - cleaned out everything - and replaced some relays, can connectors and other modules etc that were faulty Was able to start the car and it ran and drove - but the bottom end power was low - diagnosed this problem Apr 28, 2017 · Ok, so I had the rear battery replaced and drove about 8 miles to work and no battery light. After waiting days for the dealer service advisor to give me the disposition of the car, MB Escondido finally admitted they were seeking permission from MB corporate to replace the $4000 48 Jul 24, 2018 · Problem continued (actually dead once). Here are some key points about the 48V battery system in Mercedes: 1. Discover essential tips on battery maintenance, recognize signs of battery issues, and explore various charging methods. airbagteam. Owners often report warning messages when the 48V battery malfunctions. 6 hours labour. The dealer replaced the battery when it got serviced recently. Disconnect the negative terminal first, followed by the positive. Low volts, slow to start, aux switch warning, charging system working great, etc. If you are looking to replace the secondary battery yourself, you need to know where to look. Dec 2, 2022 · Have brand new 2023 S500 Executive Series. Install the new battery. After confirming that my charging system had 14. Tech says they need to replace starter/generator. Author: vysi Nov 29, 2016 · The belt starter/generator (“BSG”) output 48v, nominally. is investigating potential consumer class action claims on behalf of owners and lessees of 2019-2022 Mercedes-Benz E-Class, Mercedes-Benz CLS-Class, Mercedes-Benz GLE 450, and Mercedes-Benz GLS 450 vehicles. 48-Volt Battery Issues. After a week of service, even on the low speed, the fan speed got quite high and the next day car refused to start, the battery went flat again. 7 volts or higher; below 12. Oct 15, 2023 · You will, though, have to read them all to find out that several of these relate to the 48V battery malfunctions and/or a warning light message that states, Coolant too hot shut engine off. The most common causes of dead battery in S-Class are internal degradation of the battery due to old age, and bad alternator – but can also be caused by Nov 25, 2024 · The battery shown above has 35 cells—a nominal voltage of 3. Each time engine light comes on, Benz dealer cites different issues. 205. Had the battery symbol and sports differential warning lights. This guide provides a comprehensive approach to diagnosing and addressing problems with your Oct 11, 2024 · Avoid allowing the battery to remain in a partially charged state for extended periods. Hear it is…$4,000. Oct 12, 2024 · Learn how to charge your Mercedes-Benz battery effectively with our comprehensive guide. 206. The 48V on-board electrical system is de-energized if the 12V battery is disconnected for longer than 10 s. Its now on the shop for that issue and unusual tire wear on the front two tires. Buy YOUCANIC Pro Scanner https://www. Hey everyone, just got the same issue on my 2021 rs7. " Per Mercedes-Benz vehicle-specific repair information, Notes On Battery: "A 48V connector may only be unplugged in de-energized state. The average cost for a Mercedes-Benz GLS450 Battery Replacement is between $441 and $467. Contractor Issue – Contactors open and close the high-voltage circuit. 4 volts indicates a potential battery problem. How do you know if your 2022 Mercedes-Benz S 580 needs a new battery? The most common symptoms of bad 2022 Mercedes-Benz S 580 batteries are if your vehicle is slow to start after turning the key, or if your battery cables and connectors show signs of heavy corrosion. It is designed to detect the temperature of the battery, allowing the charging system to adjust the voltage up or down according to the vehicle’s needs. Repairing the 48v battery on this Mercedes 48v Mild Hybrid so the vehicle can be started and driven once again!💬 Message☎️ 01709 257 357🌐 www. The disconnected 48V battery then causes subsequent symptoms: Limp Home Mode, overheating, A/C not blowing cold, or loss of accelera-tion Oct 28, 2024 · The Battery Temperature Sensor is located near the battery. This battery supports the electric starter motor, regenerative braking and other electrical systems that increase energy efficiency. In extreme cases Jan 11, 2024 · Hello. The message log still indicated a red battery but there was no battery indication on my display. B183371 the battery for 48V onboard electrical system has malfunction. There is internal electrical fault. I would honestly avoid forums on the 48V problems, no one outside of dealer techs has worked on them since they're all under warranty still. It enhances the safety, performance, and longevity of the battery by providing temperature data to the Battery Control Module (BCM). My name is Joe. Personalized configuration by OrBit. B183371. Mercedes 48-Volt Battery Defect Investigation – Owners & Lessees Of 2019-2022 Mercedes E- & CLS-Class & Mercedes GLE 450, GLS 450 Vehicles Encouraged To Contact Kehoe Law Firm, P. Sep 13, 2023 · The “Auxiliary Battery Malfunction” warning typically refers to a problem or issue with the auxiliary battery. Sep 13, 2022 · Hi all I'm working on a 2020 W167 GLE AMG (167. It’s now with Audi who say both the new 12v battery and the 48v battery are showing faults and need replacing. They also report having to repeatedly pay out-of-pocket for costly diagnostics, software updates, and battery replacements, none of which remedy the problem. 7 volts and a max of 4. The new policy is expected to apply to Mercedes starting from 2026 with no grace period. Mar 25, 2024 · Mercedes-Benz AG started looking into the described issue back in June 2022 due to multiple field reports alleging battery-related warnings. B183319, or any other faults in the 48V battery. At first they quoted me £1,324 for replacement of the battery including labour and VAT. kfequipment. They are located inside the high-voltage hybrid battery and can fail. This issue often arises during high-demand applications or improper charging. ved New Member. The disconnected 48V battery then causes subsequent symptoms: Limp Home Mode, overheating, A/C not blowing cold, or loss of accelera-tion. com/products/w212-w221-hv-hybrid-battery-testing Jun 11, 2022 · The most common symptoms of dead battery in Mercedes-Benz S-Class are slow engine crank, no start, dim lights, flickering dashboard lights and clicking noises when trying to start the engine. Just making sure. Dec 10, 2022 · 1. A fresh battery should be around 12. co Jan 31, 2024 · It is merely supplied by a 48V/12V DC/DC converter instead of by a 12V alternator. 213. The top destination for Mercedes and AMG discussion, news, and rumors The 48V battery in modern Mercedes models plays a crucial role in the functioning of hybrid and electric vehicles. The 48V systems are unique, since they're a mild hybrid they are sensitive because you don't want 48V touching 12V systems. ? Sep 16, 2024 · 48V Battery Malfunction Dec 2023 Mercedes GLE Premium Mild Hybrid Thread starter ved; Start date Sep 16, 2024; Sep 16, 2024 #1 V. A second defect has been alleged relating to Mercedes-Benz vehicles with 48V/12V battery hybrid systems. One of the extra issues is the battery symbol that has shown white since January and there have been no detectable issues so far. Where's the car now - at the dealer? Also, you say you called out the AA - is the car not covered by Mercedes Benz Mobilo roadside assistance? Apr 28, 2023 · Owners report that early warning signs of battery problems include warning lights or an error code on the dashboard. Also, I see that a 12v charger might charge 48v through a converter, but no Apr 28, 2023 · Owners report that early warning signs of battery problems include warning lights or an error code on the dashboard. A Mercedes-Benz CLS450 Hybrid High Voltage Battery Replacement costs between $2,620 and $2,678 on average. This is of considerable concern, because it’s become clear that the 48V battery issue affects a range of Mercedes-Benz vehicles. I do repair those batteries for customers by just opening up, digging into the circuit boards, and refreshing some EEPROM files. However, the car shows no history of the Check Engine light going on at all. It stayed on for a couple of miles but went out when I accelerated to about 60. The only 48v wires in the car go from the SAG to the 48v battery and then to the DC-DC converter located on top of the 12v battery, all in the rear luggage compartment. For the item: https://www. Your 2021 Mercedes-Benz GLE 450 battery will generally last between 3 to 5 years, but that can change laboriously depending on battery size, weather conditions type of battery, and driving habits. 4. dc/dc converter is glued to 48V battery Oh I did try this but did nothing, I can try again but apparently they have a relay that shuts the battery down if it gets low, it's ment to be inside the battery but I have no idea, daxxer can do it but not been online for a while CG100 PROG III V6. What is your experience with these 48v systems (good or bad)? I'm seeing some reports on a fix being a computer reflash/update, and others replacing the 48v battery. Some owners have even cautioned extended use of the MB app citing potential cause of additional battery drain. Where's the car now - at the dealer? Also, you say you called out the AA - is the car not covered by Mercedes Benz Mobilo roadside assistance? Apr 5, 2021 · Replacing the 48v battery will solve the problem. July 2, 2022 — A Mercedes battery drain lawsuit alleges defective electrical systems leave drivers Here is the tutorial on repairing the Mercedes Benz 48 volt mild hybrid battery using CG100 Prog III or CG100X programmer. Purpose of the 48V Battery: Mild-Hybrid System: The 48V battery is primarily used in Mercedes’ mild Oct 19, 2023 · Electrical System:12V/24V/48V Battery Summary: Mercedes-benz ag (mbag), the manufacturer of mercedes-benz vehicles, has determined that on certain my 2022 sl (232 platform) vehicles, after a longer non-operational time of greater than 42 days or with a battery charge of less than 45%, the following battery fault message might display in the Does anyone else have a Mercedes sitting a dealer waiting for a 48V battery system? My 2021 GLE450 (which has been problem after problem, even outside of the 48v issues) has been parked at the dealer for a month, I was told it would be ready 9AM the next day on Oct 17, then I was told 5-8 business days, then "a couple weeks" then "end of November", and then, when I picked up the loaner, "3,4 I'm looking into a GLS and notice there are some reliability issues with the 48v mild hybrid system. All 48V batteries of Mercedes Benz provide DTS MONACO technical solutions: 2. The DC-DC converter is the only way to charge the 12v battery and ALL vehicle systems are natively 12v. Drove another 2 miles on my way home and the light comes on. Apr 28, 2023 · Owners report that early warning signs of battery problems include warning lights or an error code on the dashboard. Check the step-by-step guide to repair the battery. The disconnected 48V battery then causes subsequent symptoms: Limp Home Mode, overheating, A/C not blowing cold, or loss of accelera-tion May 24, 2024 · Modern Mercedes-Benz vehicles, known for their advanced technology and sophisticated engineering, often include an auxiliary battery to support various electrical systems and functions. Even still, just because your battery isn't utterly dead, doesn't mean it's operating properly. Just got past the 20k mark. First time in 40 years ,have had a bad one,so Feb 12, 2023 · Where is the Mercedes Auxiliary Battery Located? Mercedes-Benz puts the auxiliary battery in multiple locations, depending on which model you drive. Overheating can severely impact battery performance and longevity. The site includes MB Forums, News, Galleries, Publications, Classifieds, Events and much more! Conduct a battery health check: Use a multimeter to read the battery charge. It comes from factory with a H7. I found a lawsuit about it from about a year ago in New Jersey but it seems that hasn't been resolved. When the auxiliary battery malfunctions, it can lead to various problems related to the vehicle’s electronic components and systems. Aug 7, 2021 · (08-08-2021, 12:35 AM) A2ua Wrote: charge with terminals under bonnet as usual with 12V charger. Please advise how I could remedy the problem if it is a voltage regulator, alternator or battery. B183304。 4. 167。 3. 0T with e-torque. " Dec 17, 2021 · Kehoe Law Firm, P. However, upon further research it seems that this model along with several others can have major problems with the 48V battery dying. From understanding battery types to a step-by-step charging process, we've got you covered. My mechanic says I have to replace my alternator my car 's mileage is 122,000. When dealing with 48V battery failure of Mercedes Benz 223 and 206, it is necessary to cooperate with the programming and diagnostic certificate. Day 2… Engine light, electronics issues. I have had a number of computer related issues. Labor costs are estimated between $99 and $125 while parts are typically priced around $342. Mercedes 48 battery repeaer. The most recent of which is receiving the 48V Battery Malfunction message and my Check Engine light went on. However, wear and tear or technical faults can cause problems with this Feb 23, 2022 · Faults are there : B183349 the battery for 48V onboard electrical system has malfunction. Model: 223. Aug 20, 2024 · Once the 48v battery reaches +/- 18v, it will be disabled by the Battery Management System (BMS). Joined Sep 16, 2024 Mar 28, 2023 · I have a 2020 2. Prioritize safety and ensure reliable vehicle performance to prolong your battery's life. Nov 6, 2023 · Looks like there's a problem with the drive battery - is the car under warranty? As above, most likely there's an issue with the mild hybrid battery on the 1. . Soon after that quote however they told me that the fault could be rectified without replacing the battery but by simply performing a software update on the existing one. Get a free detailed estimate for a repair in your area. The actuator is blocked problem has been solved, crash has been removed, thank you for all guys Thanks for pitpol for his support. TO: ALL MERCEDES-BENZ CENTERS SUBJECT: Model GLE-Class and GLS-Class (167 platform) Model Year 2020-2022 Check the 48V Ground Connection Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (“MY”) 2020-2022 GLE-Class and GLS-Class (167 platform) vehicles, the 48V ground Dec 16, 2024 · An auxiliary battery malfunction on a Mercedes refers to a problem with the secondary battery that provides power to various electrical components in the vehicle. This range does not include taxes and fees, and does not factor in your unique location. A 48V battery, commonly used in electric vehicles, solar power systems, and golf carts, requires careful inspection and testing to ensure optimal performance and reliability. 2022 S60 T8 Black Edition by Volvo. They said the part will come in a few days, guess because you all had the same issues they have parts ready to go. This was completed at the cost of 1. When an auxiliary battery malfunctions, it can affect vehicle performance and lead to issues that require attention from qualified technicians. Sep 9, 2024 · When dealing with a malfunctioning 48V battery, effective troubleshooting is crucial to identify and resolve issues promptly. AutoZone has a special filter that allows you to enter your exact Mercedes model and find the ideal battery. Fault code: B18339A. 0 added 2015 onwards Mercedes-Benz 48V lithium battery W167/W203/W205/W222 repairing function. The common locations where to find the auxiliary battery on a Mercedes include: Mar 28, 2023 · It is my understanding that BSG unit charges the 48V battery and the 48V battery is supposed to then charge the 12V starter battery. Cause 5 is from the 48V battery detecting an abnormality which then causes the 48V battery to disconnect itself. I have a 2020 GLE 450 4MATIC I purchased back in August 2023. 361) Engine: 256. A Mercedes-Benz service manager allegedly told the owner that several other 2023 Aug 13, 2024 · The 48V battery system in Mercedes vehicles is an advanced electrical architecture designed to support a variety of functions that improve both performance and efficiency. Remove the old battery. 1 volts per cell. com/scanner/Get Factory Service Repair Manuals & Specs https://www. Unlock a Aug 1, 2023 · The petitioner’s vehicle had just ~2,400 miles (~3,800 km) on the odometer when the issues first appeared. 253. C. Sep 24, 2017 · BenzWorld. 4V during my commute today, I was all set to go out and buy another battery. Also, consider using insulation during 2021 Mercedes-Benz GLE 450 Battery. This will only have fault B183371 in 48V battery. Overheating. Mar 23, 2009 · Tomorrow I have our B-Service on our 2008 ML320 CDI. Note: each of these remedies correspond to a specific cause. Mar 28, 2010 · I have the same problem too but I want to knowhow to open the hidden menu that shows the voltage I have a 2003 c230. Where's the car now - at the dealer? Also, you say you called out the AA - is the car not covered by Mercedes Benz Mobilo roadside assistance? Looking at a 2022 E53 AMG that seems like a very good deal. Can you share if you found any solution or location of pyro fuse? Jul 2, 2022 · Class action lawsuit alleges the 12-volt and 48-volt batteries drain and strand consumers. 2. I literally had the SAME issues you have. Other possible problems with Mercedes-Benz hybrid vehicles are: Power Electronics Module Mar 19, 2024 · How awful,the auxiliary battery presented problems in first 3 weeks on 2nd shut down I refused to take back car, now have a brand new one and never sit in it with anything running ,or reading lightnon Nada,like you lost all faith in brand ,but My local dealer Bolands were meriful and replaced it. Avoid extreme temperatures: Park in shaded areas or garages when possible to shield the battery from excessive heat. This battery is separate from the main car battery and is responsible for supporting functions such as the start-stop system, interior lighting, and other auxiliary features. , but after tonight's battery testing results showing that the battery is good, I'm not Feb 19, 2023 · The icon on the dash is the 48V battery charge level, there is no readout visible for the 12V battery system charge level. Jan 24, 2021 · However, the MB Escondido service advisor Mark Ciesla adamantly denied any existing electrical or battery issues with recent model Mercedes automobiles. Dec 3, 2019 · Hello ! I have a problem, i cant find pyrofuse! Checked prefuse box, box on the positive battery cable and have no luck! Car wont start. Symptoms: The battery feels warm to the touch, and performance may degrade. It has a relay that turns off the battery when the voltage drops. May 7, 2024 · My 2023 Mercedes-Benz glc 4matic pinnacle edition has given me battery low and needs charging notices and has failed to start twice. youcanic. The BMS cannot be reset or reprogrammed with conventional scan tools. After a week, I had to call but glad VM from dealer indicates waiting on MB /HQ to “approve this Warranty” issue w/48V battery issues. 5. Then, remove the battery from its bracket. We haven't seen them come back after replacing the DC/DC converter or 48V battery. 01: 48V Battery Benefits By using a 48-volt electrical system in new Mercedes-Benz vehicles, the car can be powered solely on the electrical system battery instead of using the drivetrain batteries. Recheck- normal diagnostics, replaced battery "because some problems reported with some batteries" Problems recurred- normal diagnostics- basically "good luck" Problems recurred maybe a month later, more frequent to now 1-2 X/d to once every 4 days, regardless of storage, temp outside, usage, Sep 25, 2017 · Since then I have had an intermittent problem with the battery as the car was not starting at times if I do not use the car for like 2 days. com/manualsAsk Car Questions & Get B183319, or any other faults in the 48V battery. The service personnel did suggest they have seen a few problems with the transmission battery and they will check it out. At that time, the German automaker hypothesized that an Repairing the 48v battery on this Mercedes 48v Mild Hybrid so the vehicle can be started and driven once again!💬 Message☎️ 01709 257 357🌐 www. qwvksv zeydb yjxi bohjba qnblzbu onashsm dzxgxzh vxpb lbtv khjjnr