Electrical System Problems of Mercedes Benz E300

Mercedes Benz E300 owners have reported 31 problems related to electrical system (under the electrical system category). The most recently reported issues are listed below. Also please check out the statistics and reliability analysis of Mercedes Benz E300 based on all problems reported for the E300.

1 Electrical System problem of the 2017 Mercedes Benz E300

Failure Date: 08/12/2025

I am writing to formally lodge a complaint regarding serious and repeated issues with my 2017 mercedes-benz E300, purchased and serviced exclusively by authorized mercedes-benz dealerships. 1. Repeated oem run-flat tire failures within the past two years, I have been forced to replace nine oem run-flat tires, including:    •   3 replacements at mercedes-benz of tysons corner, va    •   2 replacements at goodyear tires, cattlemen rd. , sarasota, FL    •   4 additional replacements at certified service centers these failures occur under normal driving conditions, often without visible punctures or road hazards, and at safe speeds. Each tire replacement costs approximately $550, plus towing, diagnostic fees, and rental car costs. The financial and safety burdens are substantial, and this level of tire failure is not normal for any vehicle—particularly a low-mileage, luxury sedan. 2. Electrical/dashboard recording malfunction my dashboard service history fails to record service visits, even when performed at mercedes-benz dealerships. This is deeply concerning as it compromises vehicle resale value, warranty tracking, and transparency of maintenance records. Despite multiple visits and attempts by service centers, the issue persists without resolution. 3. Financial impact and brand reputation the total cost of repeated tire replacements and unresolved electrical issues has reached several thousand dollars, despite my vehicle having relatively low mileage and receiving all recommended service at authorized dealers. This experience is completely inconsistent with the quality and reliability promised by the mercedes-benz brand. I am requesting the following:    •   full investigation into the defect rate of oem run-flat tires on the 2017 e-class models    •   immediate inspection and repair of the dashboard/electrical recording issue at no cost to me    •   reimbursement for tire-related costs and associated expenses incurred due to repeated failures.

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2 Electrical System problem of the 2017 Mercedes Benz E300

Failure Date: 01/10/2025

Smell of gas coming from the the fuel line, and the radio changes stations on its own.

3 Electrical System problem of the 2017 Mercedes Benz E300

Failure Date: 12/02/2024

The contact owns a 2017 mercedes-benz E300. The contact stated that while at a complete stop and releasing the brake pedal, the eco mode system failed to engage, and the engine failed to restart. The contact stated that upon depressing the push to start button, the vehicle restarted. There was no warning light illuminated. The vehicle was taken to the dealer, where the battery was replaced; however, the failure progressively worsened. The contact stated that while at a complete stop with eco mode activated, the vehicle would only restart after pressing the push to start button several times. The contact used a vehicle scanner and was able to retrieve diagnostic trouble codes related to the starting current limiter. The contact referenced TSB number: 2017020021 and NHTSA campaign number: 17v114000 (electrical system, engine and engine cooling). Additionally, the contact stated that the steering wheel had seized in an incorrect position and could not be readjusted. The contact related the failure to TSB number: 2017020018. The dealer was notified of the failure and referred the contact to the NHTSA hotline for assistance. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 130,000.

4 Electrical System problem of the 2018 Mercedes Benz E300

Failure Date: 12/07/2023

The back-up camera failed while in the middle of reversing. Screen went completely black and unresponsive. Putting the car in park then back to reverse didn't work, screen still black. Tried turning off the car and turning it back on, screen still black and no back-up camera when I put the car in reverse. I tried turning on / off the infotainment system and no change, screen still black. Later in the day when I got back in the car, the screen came up much slower than usual, but did eventually come back up. This has happened multiple times and I've taken it to the dealer multiple times for this, but they've not been able to fix it.

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5 Electrical System problem of the 2017 Mercedes Benz E300

Failure Date: 09/13/2023

The entire driver instrument panel screen went blank, after going blank and coming back on a few times while driving. This is extremely dangerous. Now, the driver cannot see the speed, odo, fuel gauge, indicators or anything at all. I hope you please investigate and initiate a campaign and get this resolved from mercedes.

6 Electrical System problem of the 2019 Mercedes Benz E300

Failure Date: 09/12/2023

Instruments cluster not working after water water got into car from rain.

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7 Electrical System problem of the 2018 Mercedes Benz E300

Failure Date: 07/03/2023

According to the mersedes dealer it is engine harness it is possible manufacture defect. Car has only 38900 miles on it.

8 Electrical System problem of the 2018 Mercedes Benz E300

Failure Date: 06/15/2023

When taking curves the vehicle is making a cracking noise but, mechanic said they don’t see anything. My w213 Mercedes Benz E300 just like all other mercedes is have a “crankcase” issue, it failed the engine keep revving but, not catching speed. I’ve seen multiple mercedes is having that issues and it’s very common. My vehicle computer communication system failed to communicate with the key sometimes won’t start and will run out of power overnight mainly happen during winter times and when it rains.

9 Electrical System problem of the 2017 Mercedes Benz E300

Failure Date: 12/11/2022

Battery being drained, the car does not start, water inside the vehicle on the floor at the drivers side.

10 Electrical System problem of the 2019 Mercedes Benz E300

Failure Date: 05/20/2022

The contact owns a 2019 mercedes-benz E300. The contact received notification of NHTSA campaign number: 22v365000 (electrical system, communication) however, the part to do the repair was unavailable. The contact stated that the manufacturer exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.

11 Electrical System problem of the 2017 Mercedes Benz E300

Failure Date: 02/10/2022

Suddenly , the trunk stopped closing completely. Noted a significant gap in the trunk to the quarter panel due to the pull down function / soft close not working. Trunk is now slightly open, which could be an issue with water ingress with many electrical components in the trunk compartment.

12 Electrical System problem of the 2017 Mercedes Benz E300

Failure Date: 01/03/2022

There are three main issues: as the weather got cold here in NJ, whenever the car is started in the morning, there is a strong fuel smell inside the cabin. Also there is a lot of fumes that smell gasoline. I think it is safety issue. The auto braking does not seem to operate right. I do not see any error message, but it had never tried to avoid a collision when I have tried other cars that would have normally applied the brakes in those situations. The garage door opening function does not work as soon as the ignition is turned off. This is an electrical issue in my view.

13 Electrical System problem of the 2017 Mercedes Benz E300

Failure Date: 09/26/2021

Vehicle instrument cluster has gone completely off while driving, will not display. Everything else in car works fine. Fuses are not blown. Shows recall in 2017 for this make and model but VIN does not show as any active recalls related to this for this vehicle.

14 Electrical System problem of the 2017 Mercedes Benz E300

Failure Date: 07/26/2021

The contact owns a 2017 mercedes-benz E300. The contact stated that while starting and driving the vehicle, the instrument cluster was blank. The vehicle was taken to the local dealer but was not diagnosed or repaired. The manufacturer was notified of the failure however, no further assistance was provided. The contact stated that the failure was like NHTSA campaign number: 17v245000 (electrical system). The approximate failure mileage was 70,000.

15 Electrical System problem of the 2019 Mercedes Benz E300

Failure Date: 07/14/2021

While loading the car's truck, the automatic power trunk lid closed on the user's head with force.

16 Electrical System problem of the 2017 Mercedes Benz E300

Failure Date: 06/02/2021

It appears according to the technician that the entire fuel system has shorted out at once while I was driving down the road and my car died at once while nearly causing a wreck while losing all power steering and control.

17 Electrical System problem of the 2017 Mercedes Benz E300

Failure Date: 09/10/2020

On sept. 10, 2020 while driving on the westbound long island expressway, near exit 19,in an afternoon rainstorm, my 3 year old mb E300 was flooded through the rear view mirror mount and the column on the drivers' side, separating the windshield and door. Water cascaded from these areas and flooded the floor. All electronic components on the floor, under the front seats, were shorted out. This brought the car to a complete and sudden standstill in traffic on the highway. The engine continued to run but the car would not drive or move, potentially putting my life in jeopardy. The shift lever would not put the car into drive, reverse or neutral. The car needed a tow on a dolly off the highway and it continued to run for hours. The windshield wipers would not turn off and the windows could not be shut. Just about every warning light in existence was on in the dashboard. The engine was finally shut down, after over 4 hours, when the car arrived at rallye Mercedes Benz in roslyn, NY. This sudden stop, in a running car, on a limited access highway could of been deadly. The car had recently been serviced at rallye motors.

18 Electrical System problem of the 2017 Mercedes Benz E300

Failure Date: 03/05/2020

I purchased this vehicle in January 2020. At first, the fuel filler door would not stay closed once I opened it to pump gas. Every time I would close it, it would pop back open. I would have to close it about 10 times before it would stay closed. Then, I went to pump gas and the fuel filler door would not open although the vehicle was unlocked. People expect better quality from such an expensive brand. Mercedes benz needs to address this widespread issue with the fuel filler door.

19 Electrical System problem of the 2017 Mercedes Benz E300

Failure Date: 11/24/2019

Adaptive high beam was not working - upon initial activation of the high beam the car would provide an error that the camera was blocked and it would not work. The dealer investigated and it appears a piece of trim from installation when new was left in the camera and it was not installed properly. This is an issue if you suddenly needed the high beams on and the car makes you process the error first. This could impact any driver aids using the multifunction camera.

20 Electrical System problem of the 2017 Mercedes Benz E300

Failure Date: 04/15/2019

The motorized trunk lid spontaneously and forcefully closed on my head, cutting my face, while I was loading (with both hands) groceries into the trunk. Car was parked in parking lot, engine off.

21 Electrical System problem of the 2018 Mercedes Benz E300

Failure Date: 02/13/2019

Tl-the contact owns a 2018 mercedes-benz E300. The contact stated that he has experienced electrical and engine issues with his vehicle. The contact stated that the vehicle has been to mercedes-benz of seattle (2025 airport way s, seattle, wa 98134) on numerous occasions and they were unable to duplicate or diagnose the failures. The contact stated that while he was driving at 80 mph the vehicle was vibrating uncontrollably. The vehicle was taken to the dealer and upon inspection the front tires blow out. The contact feels that the vehicle has a carbon monoxide leak as he has been diagnosed by his doctor with carbon monoxide poisoning. The manufacturer has been notified numerous times but have offered no assistance. The approximate failure mileage was 25,000. Ck.

22 Electrical System problem of the 2017 Mercedes Benz E300

Failure Date: 02/01/2018

Tl- the contact owns a 2017 Mercedes Benz E300. The contact stated that the Mercedes Benz active braking assist driving assistance package had activated several times while going over bridges with no warning as the vehicle had come to an abrupt stop several times. Mercedes-benz of athens, 4735 atlanta highway, bldg. A, athens, GA 30606, (706) 549-6585 where the vehicle was purchased, was notified of the failure and had not replicated the failure to provide a specific diagnosis. The contact was almost rear ended by another vehicle as the failure happend crossing a bridge with the vehicle coming to a complete stop. The failure continued for longer than 6 months, the second dealer mercedes-benz of hilton head, 155 fording island rd, bluffton, SC 29910, (843) 815-0300 test drove the vehicle with 3 dealer associates in the vehicle as 1 recorded a video of the system engaging. The second dealer indicated that a form would need to be signed to deactivate the system however the contact wanted to ensure that the system functioned properly so that was not a reasonable solution. A technician was sent from the manufacturer who indicated that the active braking assist driving assistance package has sensed an obstacle and was engaging when there was no obstacle. The manufacturer provided no remedy other than indicating that the system was performing as designed. The dealer representatives test drove the same model for a 2018 vehicle and a truck that also exhibited the same condition. The vehicle was not repaired and the contact was offered a trade assist versus a resolution to ensure that the system functions as intended. The approximate failure mileage was not available. Dyd.

23 Electrical System problem of the 2017 Mercedes Benz E300

Failure Date: 12/05/2017

The car caught on fire after it being in service at the dealership. The car was sent to the car dealership 3 times because the auto start was not working properly. The car would just stop and could not turn back on so I had to get it towed 3 times. . . . . . After the last time it caught on fire with the passenger inside the car. . . . . Passenger is ok did not get hurt but it was a very traumatizing experience. The car is now a total loss and I'm still waiting on the dealership to investigate the fire and to pay for the car.

24 Electrical System problem of the 2017 Mercedes Benz E300

Failure Date: 07/27/2017

The contact owns a 2017 mercedes-benz E300. The contact received notification of NHTSA campaign number: 17v114000 (electrical system, engine and engine cooling); however, the part for the recall repair was unavailable. The contact stated that the manufacturer exceeded a reasonable amount of time for the recall repair. The contact stated that the parking brake warning indicator illuminated. The contact called the delray mercedes-benz dealer who informed the contact that the parts were not available. The manufacturer was not made aware of the issue. The approximate failure mileage was 5,000. VIN tool confirms parts not available.

25 Electrical System problem of the 1995 Mercedes Benz E300

Failure Date: 06/01/2017

The copper core of the electrical wire are exposed can easily cause shorting of electrical circuit. This vehicle has been a daily driving vehicle since 1995 spending the whole lifetime in southern California. This is happening to all model line 1995 mercedes E300 diesel, built in those particular model year. These wires are considered lifetime and that it should not considered be replaced after 10 or 15 or even 20+ years in use.

26 Electrical System problem of the 2017 Mercedes Benz E300

Failure Date: 05/08/2017

Rear radar not working so no warning of pedestrians or vehicles. There is no detectable noise to warn operator. Service mangrove ar bonita mercedes of FL. Says he could drill some holes in CA?. ?? have almost been struck several times, this must be a system problem the way the are avoiding. Very dangerous.

27 Electrical System problem of the 2017 Mercedes Benz E300

Failure Date: 02/08/2017

Takata recall. The contact owns a 2017 mercedes-benz E300w. The contact received notification of NHTSA campaign numbers: 17v076000 (air bags) and 17v114000 (electrical system, engine and engine cooling). The parts to do the repairs were unavailable. The contact stated that the manufacturer exceeded a reasonable amount of time for the recall repair. The dealer was contacted (mercedes-benz of clear lake, clear lake, TX, 281-554-9100) and confirmed that the parts were not available for the recall remedy. The manufacturer was made aware of the issue and was not able to confirm when the parts were to become available. The contact had not experienced a failure. Parts distribution disconnect.

28 Electrical System problem of the 2017 Mercedes Benz E300

Failure Date: 01/08/2017

Takata recall. The contact owns a 2017 mercedes-benz E300. While driving approximately 71 mph, the brakes screeched and the vehicle shook and then shut off in the middle of the highway. The active brake assist and "see operator's manual" indicators illuminated. The vehicle was coasted to the side of the road and restarted. The vehicle was taken to a dealer, but the failure could not be duplicated. The dealer kept the vehicle for one week. The contact retrieved the vehicle, but the failure recurred. The vehicle was taken back to the dealer and the technician stated that there was no remedy for the brake failure. The contact received notification of NHTSA campaign numbers: 17v076000 (air bags) and 17v114000 (engine and engine cooling, electrical system). The failure mileage was unknown. Parts distribution disconnect and VIN tool confirms parts not available.

29 Electrical System problem of the 1997 Mercedes Benz E300

Failure Date: 05/27/2016

The wire harness is brittle and the insulation is disintegrating, resulting in shorts and electrical failures. The headlights stopped working unexpectedly.

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30 Electrical System problem of the 1996 Mercedes Benz E300

Failure Date: 04/05/2016

Main wire harness defective. Insulation leading to all sensors and glow plugs has degraded or disappeared. Bare metal wire is exposed in the engine compartment and driveability, stalling and fire hazard and smoke has been detected.

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31 Electrical System problem of the 1995 Mercedes Benz E300

Failure Date: 09/08/2014

Wire insulation covering has deteriorated due to heat and age leaving powder of insulation and bare wires causing malfunction. Mbna was contacted but never answered except to get my country. Second attempt at communicating with them got no response.


Other Common Electrical System related problems of Mercedes Benz E300

Problem Category Number of Problems
Electrical System problems
31
Wiring problems
6

E300 Service Bulletins
E300 Defect Investigations