Mercedes 48v issues 2021 reset Sep 20, 2022 · The Mercedes technical documents say that you cannot charge the 48v directly, so I suspect that when you connect to the jump points it goes through a control box sat on top of the 48v, that directs the flow to the 12v in the boot floor and then it uses that to send converted current between the 48v and 12v. From the complaints made with the NHTSA about the 2021 GLS, it is clear that this model isn’t exempt. 110 being sold throughout the U. Mercedes Dealer can't find the problem and and they also can't reproduce the failure because it has to be very hot weather. At this point, attorneys working with ClassAction. So, in effect, all these problems are related and there are a total of 11 altogether. They only have done some updates, now he has to wait for the next summer to check if it will happen again. Late-model cars and multiple computers and specialty modules can “forget” their calibration settings if you simply disconnect the old battery and slap in a new one. I replaced the pyrofuse, replaced 12v battery. I'm looking into a GLS and notice there are some reliability issues with the 48v mild hybrid system. 2021 Mercedes Benz GLS Complaint Summary Sep 20, 2022 · The Mercedes technical documents say that you cannot charge the 48v directly, so I suspect that when you connect to the jump points it goes through a control box sat on top of the 48v, that directs the flow to the 12v in the boot floor and then it uses that to send converted current between the 48v and 12v. removed and replaced starter generator. An additional patch was also sent from Mercedes to fix the problem, there was no need to swap for a newer battery. Appears MB has zero idea how to deal with it. Mar 5, 2024 · I have a 2021 GLE 53 with rear accident. Apr 1, 2024 · 2021-2024 Mercedes-Benz AMG GLE 63 S A 48-volt ground cable lug under the passenger seat may not be secured properly, resulting in the ground connection overheating. Recently purchased a GLC 2020 - when I tried to link my account to the car I realized the previous owner’s profile is still there Tried to reset the system by pressing Tel and Fav button - not able to add the car to my account still Dec 8, 2023 · I have a 2021 GLC300 with 48v mild hybrid system and I do read the forums regularly but cannot recall too many posts about problems with this system but as has been said it is relatively new. Car had been switched off for approx 9 hrs before starting when the message came up. All other models got 48V in 2019 (still pre-facelift). For example, we have seen there is a tendency for some Mercedes-Benz models to have serious 48V battery issues. Since new there has been an annoying audio sound that seems like it is coming from the front speakers or possibly the driver-aid electronic assembly at the top of the windshield. Mar 21, 2024 · The recall affects 116,000 2021–2024 GLE and GLS SUVs from Mercedes-Benz, Mercedes-AMG, and Mercedes-Maybach to fix an issue with a 48-volt ground connection that could come loose. The BMS cannot be reset or reprogrammed with conventional scan tools. Confirm completed guided test(s) for every fault code--not just 48v 5. 2021 Mercedes Benz GLS Complaint Summary 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 Dec 14, 2022 · May also have fault B183371; Hardware short circuit in 48V system causes fault B183319 in 48V battery. Nov 6, 2023 · My c200 displayed a red 48v notice and advised that the car be stopped and I refer to the manual. DC/DC shows faults, 48V shows faults. 7V, doesn't charge, doesn't crank the engine. May 12, 2005 · The difference between having the dealer "reset your ECU and you doing it is that the dealer only clears the faults the ECU has on memory, when you reset your ECU, it must basically re-calibrate itself and learn about all your car's systems from scratch. While boasting hybrid drivetrains and complete plug-in hybrid models and being packed with electronics and features, the Mercedes GLC Problems are seemingly high. A couple of months after taking delivery my car showed a red “12 volt battery not charging error” message. Sep 23, 2022 · I reset all crash errors and reset crash adaptations from ME control unit. Also, 48-volt batteries in tandem with 12-volt batteries on the same car and dealerships without knowing how to remedy the failure of cars with new complicated computer relationships. Mercedes eat batteries. com Dec 5, 2021 · A new battery was shipped from Mercedes. E63 was the only model to never have 48V in all W213 model years. org have decided to close their investigation into this matter, meaning they no longer need to speak with people who had issues with their vehicles' batteries. the diagnostic code was sent over to Mercedes for analysis, we got feedback that a software update was required. Mercedes reset and updated the software. 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. Jul 26, 2023 · We are looking at these problems together because 5 of the electrical system problems in NHTSA complaints link to engine problems. Make sure it’s the Mercedes warranty not some third party one. It's on current recall but this is after I had to replace mine on a 2yo GLS450 in March for $5k. I was hoping it would fix the lack of You forgot your phone. In 2020, with the facelift, MB switched the 450 to the M256 and introduced 48V with that too. Jun 28, 2021 · Mercedes-Benz GLE 450 owner says th 48-volt batteries cause failures to start the vehicles. 8 amps would try to consume 230. I have a GLE 580 and love it. Dec 29, 2021 · This week Torque News is reviewing the 2022 Mercedes GLE 450 4MATIC and the main highlight of this SUV is that it represents a new level of design, comfort and safety and introduces an all-new Apr 14, 2022 · April 14, 2022 – Investigation Closed Thank you to everyone who contacted us in regard to their Mercedes 48-volt batteries. Disconnect 12V battery more than 10 minutes for hard reset 48V system 01-28-2020 6:45 PM RUTHERE Jun 9, 2020 · New to the forum and I need some community assistance. Once I parked safely the car wouldn't start anymore and even the AA couldn't sort out the problem hence car had to be recovered after a 6 hr wait. The 350 version of the Mercedes-Benz GLE will cost you about $60,000 and it's considered to be pretty affordable when it comes to Mercedes SUVs. Mines a hybrid and have no issues at all but I’d also strongly recommend getting the extended warranty through Mercedes as well. In the S500, it produces 435 hp and 384 lb-ft of torque. One describes multiple defects and another focuses on a vehicle speed control problem. Wife is only using it for work, kids' school, and city driving. Wouldn't mind going in armed with at least some information. 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. Aug 1, 2023 · In early July, a plethora of Mercedes-Benz passenger models, including 2021-2023 GLC 300s, 2021-2023 GLC 43s, and 2021 AMG GLC 63 models, were hit with a recall over a fuel pump problem. Oct 17, 2020 · Hi, I had the same problem with 2016 GLE 450 AMG, (bought new from the dealer) The first week I received it the car would completely shutdown I would have to open the door in order to restart it, for 4 years I had nothing but problem after problem, mostly electrical. The Mercedes GLE suffers from uncomfortable base trim seats, DPF failure, poor-performing headlights, lurching forward when stopped, exhaust drone, and collision Aug 17, 2017 · Mercedes is launching it in two models with two states of tune. Confirm all 48v components can be actuated via Xentry guided tests 4. Jan 24, 2021 · Comments of the 2021 years have reports of dealerships unable to diagnose and resolve issues. However, this car has some issues you’d love to know before attempting to own one. This is Mercedes' new "hybrid" design, supposed to be more fuel efficient. Aug 20, 2024 · Once the 48v battery reaches +/- 18v, it will be disabled by the Battery Management System (BMS). In the S450, it puts out 367 horsepower and 368 pound-feet of torque. . Preparation Steps: 1. Mercedes service still stinks. Another relates to a recall that affects the 2021 E-Class backup camera. Inspect Physical layers (grounds, DC/DC to 48v battery connector, etc) 3. In this Oct 31, 2024 · If the check engine light in your 2021 Mercedes-Benz AMG GLE 53 starts flashing, that means that the problem needs attention expeditiously and your Mercedes-Benz should be brought in quickly. It has a relay that turns off the battery when the voltage drops. 0 added 2015 onwards Mercedes-Benz 48V lithium battery W167/ W203/ W205/ W222 repairing function. Back to Porsche Sep 1, 2022 · CG100 PROG III V6. If the check engine light in your 2021 Mercedes-Benz GLE 450 starts flashing, that means that the problem needs attention swiftly and your Mercedes-Benz should be brought in rapidly. Dec 24, 2021 · The defect causes vehicles to shutoff, overheat, go into limp home mode, or lose acceleration at highway speeds. And the 48V battery system has been problematic for some folks. A flashing light indicates that the problem is exceptionally serious and if not taken care of swiftly may result in major and meaningful damage to the car. K. It wouldn’t start the other day and I got several messages — Occupant presence reminder inoperative; 12 V onboard electrical system service required; service required do not change transmission — and other inoperative messages. 4 watts. And software on newer vehicles drains them all the time. 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. I ignored it, but did stop when various 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 May 19, 2024 · GLC Class (X254) - Bad user experiences with issues with my 1st MBUX updates - Yesterday, Mercedes 2024 GLC 300 4matic SUV's MBUX said an update available was available. restarted 48v system and performed replacement test plan" Aug 23, 2023 · The most common problems:Camtronic problems, carbon buildup on intake valves, additional emission filter potential issues at high mileage. May 7, 2024 · I've had the same commute for over 30 years, and owned Chevy, Ford, BWM, and have never experienced this issue. And don't forget about the thermal paste. See full list on mycarvoice. mercedes-Benz STARTUNED septemBer 2021 5 hI h enerGY At 48V, that 2. 4. However, it doesn’t take long to see how dangerous this model actually is now that it is riddled with recalls. Check the step-by-step guide to repair the battery. Car still under Mercedes 3 year warranty. The GLE 350 engine - key facts and specs. May also have fault B183371; Internal 48V battery Peltier cooling element failure causes fault B183397; This will Always have fault code B183371 but different from cause 2 and 3 -- it will Not have B183349, B183319, or any other faults in the Oct 15, 2023 · Since the automaker claims that the 2020 Mercedes-Benz GLE is “a more intelligent SUV,” expectations are insanely high. Apr 5, 2021 · (04-06-2021, 05:34 PM) fanatrally Wrote: (04-06-2021, 02:44 PM) deimonk Wrote: Replacing the 48v battery will solve the problem. So, if we take that (required) 57. I do repair those batteries for customers by just opening up, digging into the circuit boards, and refreshing some EEPROM files. 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 Mar 17, 2024 · 2021 GLS 450 Mercedes Benz within several days of purchasing in late Fall 2021, while in motion at 65MPH or more, the vehicle suddenly flashed all kinds of malfunction warnings (the entire dashboard was lit up w every system “warning”) including 48V battery code, within seconds the car shut down while driving on the highway, no power steering, no brakes, no anything – nearly lost our Mar 19, 2024 · Hello all, I joined this site for knowledge transfer for a better understanding of my brand new 24 glc300. I have a new 2020 MB GLB250 4Matic. "b200096: faulty control module active/static storrd in starter/generator control module and u046900: invalid data received from grnerator control module static in ecm. de energized 48v system. Have spoken to mercedes and all they can advise is to bring the vehicle in and want it all day. Mar 7, 2022 · Here is the tutorial on repairing the Mercedes Benz 48 volt mild hybrid battery using CG100 Prog III or CG100X programmer. The recall, 24V-207, encompasses a range of sport utility vehicles manufactured between June 20, 2017, and January 5, 2023, spanning model years 2020 through 2024. 6 watt fuel pump and Aug 7, 2021 · (08-08-2021, 12:35 AM) A2ua Wrote: charge with terminals under bonnet as usual with 12V charger. Jan 31, 2022 · Hello all, I’ve an ongoing problem with a 2021 model C-Class - so I thought I’d ask if anybody else has seen or heard of anything similar. saying (what Sep 23, 2019 · According to Mercedes this is normal, no problem found. Since purchasing this November 11th of 23 I have had five software related issues that have pretty much left me stranded until the car in some cases decided to reset itself and let me drive it. Most Common Problems Feb 29, 2024 · While the Mercedes GLE is known for its luxurious interior and more road-focused handling compared to other SUVs, the Mercedes-Benz GLE range has more than its fair share of problems. suspect faulty starter generstor. Been severely disappointed with Mercedes USA Corporate, Park Place Mercedes in Dallas & Autobohn Mercedes in Grapevine. Also, I see that a 12v charger might charge 48v through a converter, but no Pre-facelift E450 was the only variant that didn't get 48V mild hybrid in 2019/2020. 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. Oct 29, 2022 · Managed to get home without any further issues. Jul 26, 2023 · Mercedes-Benz has even issued a technical service bulletin that addresses the 48V on-board electrical system problem. I took it to Mercedes and they said their might be a fee to fix it because they don’t know of the warranty will cover it. This defect is said to affect 2019-2021 model year Mercedes-Benz vehicles including GT-Class, GLS-Class, GLC-Class, C-Class, CLS-Class, E-Class, and GLE-class M-B hybrids. does not strike me as a big problem considering how many cars have this system. Feb 19, 2024 · Mercedes Needs To Fix 48v Connection On Several Models Over Fire Risk. Problem is now with 48V battery - cells have 0. June 28, 2021 — A Mercedes-Benz GLE 450 class action lawsuit alleges the SUVs suffer from problems Nov 23, 2022 · First of all, we are financing a 2021 MB GLA 250, it's already in its 2nd year. Jul 26, 2023 · Sometimes, it is also important to look at problems that other Mercedes-Benz models have. Having a brand new vehicle that is already showing serious issues was very disappointing, especially since it's a German car, proven for a quality vehicle. My local Mercedes service manager tells me the Mercedes "fix" is to take a "sunday drive", or use a trickle charger. A flashing light indicates that the problem is remarkably serious and if not taken care of expeditiously may result in major and serious damage to the car. Feb 14, 2023 · The Mercedes GLC is the successor of the GLK and competes in the compact luxury crossover segment, and is also seen as a mid-size SUV. 5 Ohm load running at the same 4. The M276 is a pretty solid engine but the newer I6 is probably a little too new to tell yet but so far it doesn't sound like there's any issues with it. As anyone heard of this kind of problem ? May 21, 2024 · Here’s What’s Included in the Mercedes 48V Cable Recall. This happens after 24 hours and a long drive. Not have any ways for repair?Only replace? The same thing happened to me. The 2021 also has their new inline 6 engine whereas the 2020 has the older M276 although you get a boost in HP over the 2018 model. These consist of the 2021-2023 CLS 450, 2021-2023 E 450, 2021-2023 E450 All-Terrain, 2021 AMG CLS 53, 2021-2023 AMG E53 Oct 23, 2023 · The Mercedes-Benz EQS is a battery-powered, full-size, luxury car introduced by Mercedes-Benz in 2021. 5. I got mine a month ago. It is a very recent ride that critics have already tagged as an alternative to the Tesla Model S because it is among electric cars with a +350-mile range. Make sure your steering wheel is not turned to either side. I opened the 48v battery and charged it with 48 v charger and now it shows 48v but terminal 40 doesn't provide power out to the ISG/ car does NOT start. 48v battery is main power source for starting/stopping your engine at stop lights, etc. Only module that still shows "crash" is a telematics one that has no reset/adaptation as far as I saw. I’d say go gas personally. Can't wait till the battery dies. The MB warranty literally just extends the factory coverage and mine was very cheap to add. Click on other model year to view more problems: 2021. But most 2021 MERCEDES-BENZ AMG C43 s made since 2000 have an electronic throttle body and disconnecting the battery without providing a power backup can cause problems. parts ordered. Cannot reset assyst plus service interval. The one engine complaint that isn’t included in an electrical system problem, does relate to loss of power. I see a lemon law coming. It has been stuck on service C 365 days since the day I got the vehicle last year March. 2. I delayed it since I wasn't ready since it might cause problems. ulm aqumjqa eige lfqkm gdpi qhplov bucj ouztebk bjy ozotmsiwd