Mercedes 48v issues battery reddit. Tech says they need to replace starter/generator.

Mercedes 48v issues battery reddit Now I'm reading up on all of the 48v battery problems and the fact that these hybrid engines are going to be impossible to maintain moving forward. I've have a leased 2021 that has been trouble free. Having said that, I would probably go with the Porsche. g. Definitely a good idea to take the car in. 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. In 2020, with the facelift, MB switched the 450 to the M256 and introduced 48V with that too. The 48v battery used for the mild hybrid system failed in my friend’s 2022 C300 and the car had to be towed to the dealer because the car refused to start. This chip controls the operation of the entire battery. . However, upon further research it seems that this model along with several others can have major problems with the 48V battery dying. Second thing you have to consider is the BMS in the battery, it is what controls how much juice you can squeeze out of the battery in an instance. Just got past the 20k mark. This sounds like it could be related to a battery failure. The Navitas is untuned, I left the default settings. Welcome to our community - the home of Mercedes-Benz on Reddit! We are a… I have a GLE 580 and love it. How-to procedure: Here take an example of 48V battery elbow type. The battery states that 6awg will suffice. To be perfectly honest neither of those options are known to be particularly reliable cars. They also report having to repeatedly pay out-of-pocket for costly diagnostics, software updates, and battery replacements, none of which remedy the problem. The new GLC sucks in terms of reliability! In the GLC 300 Group on Facebook, there are several owners reporting 48v battery problems along with them just bricking themselves. There have been some issues with the 48v battery but I think the prevalence is overweighted on forums. The normal 12V system will still handle the standard bits and pieces that keep the motor running (e. Mercedes requires us to open a technical support ticket which can take anywhere from 2-10 days for them to respond to in order to We haven't seen them come back after replacing the DC/DC converter or 48V battery. The quick summary is that the 12V MHEV system is a dumbed-down version of the 48V MHEV system in most other Audis. Too add, I've worked with Mercedes-benz coming on 8 years now, I will never own a benz, I know better. 5 Analysis Performed at: 02-16-2023 Mar 21, 2024 · Welcome to our comprehensive guide on repairing Mercedes-Benz 48V lithium batteries using the CG100X repair tool! If you're a Mercedes owner facing battery i I have been searching for my first Mercedes and been waiting a while to pick the right one. The TSB lists the possible causes along with remedies for each. HOLD for 30 seconds. As the title implies, I'm looking at a 2021 used GLE450 and noticed a surge both on this reddit and on MB forums addressing the reliability issue of that battery. However, my dealer did let slip that I’m not the only one. I’m hoping that the next generation systems are much improved. Overall so far statistically the EV models have less major problems than the ICE ones ever had. 5 Fakespot Reviews Grade: B Adjusted Fakespot Rating: 4. They said the part will come in a few days, guess because you all had the same issues they have parts ready to go. To even order a 48V battery, you have to open a PTSS case. ) Literally just had the car in a few months ago for a routine check/oil change and not a single warning. However, over the years, BMW has worked to address these issues. Looking at a 2022 E53 AMG that seems like a very good deal. Everything that has to do with Mercedes Benz, Tuning and most importantly, keeping these cars on the road. The important part is how they handle this. Lately I haven’t seen neither as much. I love the car, but as my first Mercedes I was expecting quality and reliability whereas I had fewer issues in my Lincoln and Nissan 2-3 years after ownership 149K subscribers in the mercedes_benz community. 240 votes, 18 comments. Apart from that it is an absolutely beautiful car and it has a lot of safety features but the service will come with a price. 5L EQ engine. The 48v system charges the 12v as needed but 48v dropping below 30% forces conseervation mode which entails variety of battery messages I largely safely ignore albeit I got a harbor freight viking lipo jumper for 80 bucks for moments cant start or shut car off for 15m to let 12v leech 48v electrons. I'd read about some 48V battery failures/deaths. Disconnect the starter battery POSITIVE (+) in the engine bay. For 3 months the cart has run perfect, the voltage remains around 52-51V. 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? I'm looking into a GLS and notice there are some reliability issues with the 48v mild hybrid system. Had the battery symbol and sports differential warning lights. The BMS cannot be reset or reprogrammed with conventional scan tools. Every car just has a different problem, it’s really difficult to pin down. Many people have had to have multiple battery replacements due to repeated failures. Locate IC chip 95M01. So many people lemon-lawing their new mercs due to 48V issues. It's just mercedes fucking up their implementation again, and again, and again. The problem is that I’m on a tight budget, and I can get a 36v battery for considerably cheaper than a 48v one. But now I'm starting to think this might end up being a bit of a money pit. They screwed up the launch of the C Class with those issues and they’ve gotten even worse on the GLC. Remove and disassemble the battery. The newer models, especially those with the mild hybrid system, are expected to be more reliable due to continuous improvements and refinements in The only thing I need to be aware of is that the battery indicator thinks I have a 48v battery so it reads high. Measuring -current- to the motor you typically do with a constant low value shunt resistor in line, and a differential amplifier measuring the voltage drop across it. Mercedes 48V system has solely a 48V battery. (And a few that would have been driven by engine rotation via belt are now electric 48V like the air conditioner compressor. Nov 6, 2023 · As above, most likely there's an issue with the mild hybrid battery on the 1. And while it may take up to a week to do, it's easy to forget about it and roll up to a deep discharged battery. Last time, I charged the battery and two days after the battery went low again. There is a reputable local shop that sells refurbished batteries with LG cells, but they only have a 36v 12. 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’s getting fixed next week but yeah I’m not too pleased with it. With all battery cables now disconnected: take the battery POSITIVE CABLE end for the starter battery, and touch it to the battery NEGATIVE CABLE end for the starter battery. It wouldn't go into neutral and the tow tuck had to use a dolly to move the car. It'll drain the battery slightly. Make sure it’s the Mercedes warranty not some third party one. The lowest I have had the battery was to 50% and the voltage still read 51V and no issues. The MHEV system powers the starter, alternator, power steer We get what OP is dealing with all the time. A 20ah 48v battery has 960 watt hours of capacity. It´s just random. I’d say go gas personally. I have a 21 GLE and the 48v died today. I have been researching between the 2018 e43 amg and the 2018-19 e53 amg. The cheapest 48v I can find are at the very least $200 more, with no name cells from Aliexpress or Amazon. 6V as the max charge. The max charge on almost all 18650 cells is 4. These numbers are higher at a full charge due to top voltage of a pack being higher than it's rated voltage. They have definitely worked on sorting them out. 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. 153K subscribers in the mercedes_benz community. Plenty of hybrid systems have been tried and tested for years now. Reply reply German engineering always contained over complex vehicles that also have issues. The Panameras have well known PDK transmission issues and all of the "53" AMGs have known 48V-hybrid problems. 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? They will usually have MB STAR diagnostic computer and can diagnose issues ar the roadside. Welcome to our community - the home of Mercedes-Benz on Reddit! We are a passionate group of fans… 48v system has no impact on performance. This could potentially mask other issues. 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. Many of the components that would have been 12V are 48V. Curious, what has been your experience. I also was debating between an E and C class for a while due to the E class interior but ended up with a low mile trade in 18 C63s sedan. Also, I see that a 12v charger might charge 48v through a converter, but no Apparently, the 48V battery issues that plagued the 2023 are recurring in the 2024s. Most 48V rated packs use 13 cells in serie (13S), so13S X 4. The car simply bricked. Tech says they need to replace starter/generator. The problem has been a long game of chicken between the two groups, and no one wants to blink first. E63 was the only model to never have 48V in all W213 model years. We ended up having to replace all the cabling with 0/4 cabling. In 5 mo, MB has released almost 30 TSBs. On regular outings we have about 65-70% battery when we return and I plug it in to charge. This applies to watt hours as well. This was completed at the cost of 1. This became fun because the terminal posts on the battery are designed for a 6 awg cable. Looking at a 2022 E53 AMG that seems like a very good deal. I have taken my car back to the dealer and recharged the car for 3 times. Go back to school lol There are lawyers considering a class action lawsuit over the 48v EQ system as used in multiple cars - because in a few cases the battery has failed while driving on the highway. The MB warranty literally just extends the factory coverage and mine was very cheap to add. I do repair those batteries for customers by just opening up, digging into the circuit boards, and refreshing some EEPROM files. Mar 17, 2024 · The malfunction also leads to other problems including overheating and air-conditioning problems. Mines a hybrid and have no issues at all but I’d also strongly recommend getting the extended warranty through Mercedes as well. Name: H HAILONG 36V Battery 48V Battery Ebike Battery,36V 8Ah/ 12AH / 48Volt 10Ah Electric Bike Scooter Lithium Battery with Waterproof Case,2A Charger and BMS for 250W 500W 600W Motor Company: Visit the H HAILONG Store Amazon Product Rating: 4. I find it hard to accept. You can see the IC chip when you open the upper case of the battery. I heard the e53 has issues with the 48V battery and am not sure how costly that would be. 149K subscribers in the mercedes_benz community. Mar 7, 2022 · Wiring diagram to Benz 48V battery module. that also doesn't exclude hardcoded firmware for overvoltage and undervoltage protection, so even if it doesn't blow up it isn't guaranteed to work, and when your battery gets low it might not detect it as a low 36V battery is probably considered to be 30-32V which would damage a 48V battery, if it accelerates at all (firmware based overvoltage The most prevalent one is that the battery meter on your display won't accurately reflect the battery's state of charge. Mercedes-Benz issued a technical service bulletin (TSB) for this problem, NHTSA ID Number: 10189404, on February 19, 2021. And the 48V battery system has been problematic for some folks. In 2 years you will know for sure whether it's been permanently solved, and if so - I would say it's as reliable as any other MB is having massive issues with the 48V lithium batteries for their mild-hybrid systems. fuel injection, pump, aircon compressor) like an old-fashioned car. Jan 31, 2022 · I read on USA forums of many problems with the 48 volt battery in these cars, but they all seem to be different to my problems. At first they quoted me £1,324 for replacement of the battery including labour and VAT. The dealer said they have exam the battery and it was normal. 2V per cell. I’m assuming the new C and GLC will have these problems as well. The system informed me about critical battery low for more than 10 times. All other models got 48V in 2019 (still pre-facelift). The dealer said the 48v went bad. I am not sure if the controller has a low voltage cutoff, if so it would let my 52v get too low, though I suspect my battery's on-board cutoff who shut it down first, though I am not certain as I don't run my batteries to cutoff. The suppliers won't put out 48v parts until enough OEMs commit to going 48v, and the OEMs won't commit to going 48v until the suppliers commit to having the parts. I'm hesitating to buy a 2024, even with extended warranty as MB simply does not seem to have solutions for a plethora of issues. Mercedes' handling of the situation is disappointing, as the instrument panel function, designed to alert about car problems, loses its purpose when the check engine light remains on continuously. Mercedes has just been having so many issues with the 48v battery I would almost advise everyone away from any 53 for the time being. A 20ah 52v battery has 1,040 watt hours of capacity. Lithium doesn't play well in series (12v x 4), it won't charge right. Hey everyone, just got the same issue on my 2021 rs7. Is this common? Dec 24, 2021 · As the Mercedes-Benz battery drains can occur without warning, drivers may be unexpectedly stranded and placed in perilous situations. 55 votes, 35 comments. Once I bought and installed that with a cutoff switch, I haven’t had any problems and have been relatively satisfied. So you'll want 1x 48v battery or multiple 48v batteries wired in parellel. A 35amp battery at 52v outputs 1820 watts. Feel free to share your classic Mercedes-Benz here! Check out our new wiki to help you troubleshoot and keep your Benz running like new. I ended up taking the battery terminal apart in order to fit the cabling. 2) no 48V battery issue. Since buying mine last year, the 450's (GLE and GLS) had a major recall for transmission issues. They are having problems with 48v batteries, wiring harnesses pinched, water leaks, lack of oil pressure locking up the engine, rods going through the side of the block, head gaskets, camshaft adjusters, esp module software causing the car to just stop working, ignition modules failing, comand head units quit working, the list goes on. And I’m embarrassed we work for the same company And, since when does a 2019 E53 even have a 48volt battery system? First models with the system were the 167 and 223. May 7, 2024 · Mercedes Battery Drain Failures On July 1, 2022, Lieff Cabraser and co-counsel filed a federal automotive defect lawsuit in Georgia district court against Mercedes-Benz USA LLC and Daimler AG alleging breach of warranty, violation of state and federal consumer fraud laws, fraudulent My 2020 had several constantly-chiming dashboard errors and the driver’s side seat heater already broke. These cars should be recalled, but Mercedes seems to be taking a workaround. Mercedes-Benz 48V Battery TSB. I for example had 0 issues with my EV mercedes and a shitton with my ICE ones (from brand new). I got a '20 350 due to 1) it was nicer than the 450's available at the time. Aug 20, 2024 · Once the 48v battery reaches +/- 18v, it will be disabled by the Battery Management System (BMS). I’ve heard of the GLE’s being the worse offender with the 48v failures. They quietly released an official recall in February which was a software update that seems to have solved the issue. A 35amp battery at 48v outputs 1680 watts. From a basic google search I’ve found it not just limited to the A6 but a whole bunch of other Audis (and Mercedes) that use the 48v battery system, including those in the screenshot I posted. Lot of 48v and the in-line 6 had its issues too. 2V = 54. The hassle for the dealership is that even if the car gives you this message, if the technician tests the battery with the Mercedes required battery tester and it says charge or pass, we cannot replace the battery. 8AH option. However, Victron does not like this AT ALL. Welcome to our community - the home of Mercedes-Benz on Reddit! We are a… Pre-facelift E450 was the only variant that didn't get 48V mild hybrid in 2019/2020. That was a GLC 300. Also, the GLA, GLB, A, and CLA with the cylinder head failures on the m260 engine. Hence, they'll always show a 52V battery as having a higher state of charge than normal. Reliability and Common Issues: Early BMW hybrids, like many first-generation technologies, had their fair share of teething problems. As another user stated, I had a lot of problems with their BMS when I was trying to run any accessories off of the batteries without a 48v to 12v converter. Disconnect the starter battery GROUND (-) in the engine bay. Failing 48v batteries, loose grounds and electrical connections, failing electrical components, poor engineering, trim falling off, 3rd row seats failing, driveline issues, and so on. Does anyone have any recent information as to whether this is still an issue? Is it safe to assume a used car that doesn't show any issues in the Carfax report would be fine? Using a 48v battery on a 36v ebike Hey everyone, after riding an old 36v ebike I found used for the better part of 2020, I finally took the plunge in septemberand used my savings on a 2020 Voltbike Mariner. I found CPO models near the same price as some non-MB dealer options, and ended up with a same 2020 model year as a CPO I was cross shopping, but the non-CPO car was registered later by 14 months and had a factory warranty LONGER than the CPO option. Well, maybe for the cars that have auto/start stop issues, largely the SUV’s… some have 48v system issues, especially the GT’s… another car I just worked on last week had a once in every 8,000 mile problem that said: “do not shift gears”. Most displays are configured for 48V, and use the battery's output voltage to determine the state of charge. The 350 ain't a saint per some (who've never owned one), but the 350 has a tried and true 12V system. But again, different problem. Repair procedure is the similar. It's been around longer and most of the major bugs in that platform have been worked out. I’m getting the distinct impression there is a flaw, whether mechanical or software, that MB don’t know how to fix, and it doesn’t just apply to C Class. 24kW Mild hybrids with the motor build into the ZF8HP unit are very reliable. I've got a year left of the manufacturer warranty and was considering extending the warranty. I found a lawsuit about it from about a year ago in New Jersey but it seems that hasn't been resolved. The first few years had their issues. 6 hours labour. I have 2023 C43 and get these messages all the time. mffv wdxuw dhw sxuj pjndjv aldbntc hoby kikwu ojcw izhaxez