Mercedes-Benz E-Class Complaints

3,253 consumer complaints on file.

#11749901July 13, 2026
ENGINE, FUEL/PROPULSION SYSTEM
My 2020 E450 has not been serviced on schedule due to Mercedes-Benz of Indianapolis and its service manger banning and blacklisting me for months. This service department would not allow my vehicle to be serviced under a prepaid maintenance and wheel and tire plan, and most importantly my vehicle's warranty. When I went there for an appointment, a flat tire, or help with my vehicle, they kicked me out, verbally harassed and threatened me because I did not pay the deductible on a loaner vehicle because my signature was forged to submit a false claim. I have had problems with my vehicle, but most recently, as I was driving on a roundabout in rush hour traffic, when my vehicle suddeny stopped and experienced lack of compulsion and would not drive. It had already had a check light engine, tires, batteries, and brakes. It was surprising because my 2020 E450 Mercedes-Benz had only 39,000 miles. I did not have anywhere to take it to. Mercedes-Benz Customer Care authorized it to be towed to the Mercedes-Benz of Fort Wayne because the service manager black listed me from surrounding MercedesBenz service departments. When my vehicle was towed to Fort Wayne, the service department would not allow me to use my warranty. It had expired before I had a chance to use my prepaid plans. I explained my issues, and in April and May, I told them about a recall. They ignored me, but saw problems and concerns of safety while I wad driving. They did find leaking and now what to charge me $26,000 to replace mt vehicle's engine, such as a leakage and symptoms of the exact signs of what the recall states. As of today, Mercedes-Benz of Fort Wayne has had my vehicle since April 1, 2026, (three months) in an unassembled state. Now, they are threatening to charge storage fees and sieze by vehicle even though it is unsafe to drive. Thank you for taking time to read this.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11749054July 8, 2026
SERVICE BRAKES, SUSPENSION, FUEL/PROPULSION SYSTEM
Vehicle subframe corrosion (manufacturer extended warranty offered). Rear brake lines corroded/leaking. Vehicle leaks fuel; steel fuel line corroded. Vehicle has about 105k miles. Minor fire started when yard maintenance came in contact with fuel saturated ground where vehicle had been parked/moved out of the way just prior. With rear suspension subframe springs corroded, vehicle bottom can contact road surface while driving, scraping steel exhaust with fuel present. EXTREMELY dangerous. Local Sunbury Ohio Mercedes dealership inspected then offered subframe replacement. Stated it was leaking fuel and not hydraulic fluid we originally thought. Brake, suspension and fuel line corrosion repairs were quoted in excess of $4,000, which was a "great deal" according to them "because the subframe would already be removed and would make it much easier."
Crash:
No
Fire:
Yes
Injuries:
0
Deaths:
0
#11747174June 29, 2026
ELECTRICAL SYSTEM, POWER TRAIN, STEERING
1. Car's computer abruptly shutdown all controls/systems when lightly applying brake to stop at yellow light. Lost Total control of car, steering locked, 4 wheel drive locked all wheels, park brake inoperable, doors locked, windows would not operate, key fob was made inoperable, HVAC was inoperable, no lights worked except for Emerg flashers, wipers activated and went erratic, multiple alarms went off saying what Not to do but gave No advice on "What to do", MB SOS made inoperable. see MB Inv 379224 they determined it was EZS control module. BUT MB gave no diagnostics why the car left driver with control of nothing. 2. My safety was put at high risk. Why? I manually opened driver door, it closed itself car on a slight inclined Rd, manually opened trunk to warn others, returned to car and all doors are locked, plus all retractable handles flush with door body manual key useless. Due to perfect weather day, passenger window down 3in allowing to insert arm to unlatch door manually. Car was in lane 2 of 3 lane traffic light intersection. Very busy major road accessing a 6 lane US Hwy. Luckily Police arrived on their way to work, stressed very dangerous location, stayed until car towed away. 3. MB dealer returned car. Will not confirm they will do a root-cause analysis of the total loss of control when one item (EZS) fails and leaves driver totally unsafe. There must be a software malfunction.....too many alarms. MB cannot assure this E350 or (any other one) will not have this type of shutdown again leaving the driver Unsafe. Reading MB car safety policy this dealer and MB USA Georgia do not comply with the policy. Concerns over Driver safety remain very high despite the replaced EZS, software was not diagnosed 4. Dealer stated on Jun 26, the failed EZS is yet to be analyzed and gave no timeline to do so. I gave 26 days for dealer to comply with MB policy. It is not forthcoming 5. Absolutely No warning lamps, alarms or any operational symptoms prior to total shutdown
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11746416June 25, 2026
POWER TRAIN
The contact owns a 2019 Mercedes-Benz E-450 4MATIC. The contact received notification of NHTSA Campaign Number: 26V216000 (Power Train). The local dealer was contacted and confirmed that parts were not yet available. The vehicle was not diagnosed or repaired. The manufacturer was contacted and referred the contact to the dealer for assistance. The contact had not experienced a failure.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11746468June 25, 2026
LANE DEPARTURE: ASSIST, STEERING, ELECTRICAL SYSTEM
The lane-keeping assist function (In-Lane control, part of the driver-assistance suite) does not turn off when commanded. The driver selects the control to disengage, and the system remains active and continues to apply steering input. This is a recurring condition and it is getting more frequent. A driver-assistance steering function that cannot be switched off removes driver authority over the steering at the moment the driver is trying to take control, which is a safety risk in normal driving and especially during evasive maneuvers, lane changes, and construction or debris avoidance. The condition was reported to the selling dealer in writing on June 17, 2026 as part of a recurring driver-assistance concern. During the subsequent B service visit the dealer inspected the radar sensors and applied software updates to the steering column module, steering wheel, electric power steering, and driver-assistance control units. The dealer could not duplicate the concern and did not perform a system calibration. The condition has continued after that service. The vehicle has approximately 17,428 miles. There has been no crash, no injury, and no fire. A separate recurring concern on the same vehicle: it reports its doors as unlocked when they are in fact locked, and issues a vehicle-unlocked notification while the vehicle is locked. This now occurs on a near-daily basis and was also reported to the dealer on June 17, 2026 with no diagnosis on record.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11746559June 25, 2026
UNKNOWN OR OTHER
I wish to respectfully report a safety concern with my new 2026 Mercedes All-Terrain Wagon. Specifically, at certain sun angles under cloudless skies, flaring occurs on the inside of my front windshield. They would appear to be linked to the Heads-Up Display Unit via reflection. The housing and dash can also reflect patterns on the windshield. Again, this occurs under certain sun angles when the sun is anywhere between 11 o'clock and 4 o’clock. Additionally, the density of a flaring pattern can be dense enough to obscure signs, objects, or other hazards. For this reason, I strongly believe this constitutes a safety hazard as well as something that plagues automobile travel: principally distractions. I do agree that flaring on a small level can occur in connection with HUD’s. Nevertheless, on this vehicle, I contend it is excessive and usually appears every day under bright sun conditions. In shade or cloudy conditions, this is not an issue. This was first noticed sometime after 500 miles in winter, under sunny conditions. I now have 10,500 miles with no resolution from Mercedes national. After documenting this case from the beginning, I was notified today, 06/25/26 by the Service Manager at Chico, California, Mercedes, that the national engineers determined this was normal. In fact, one of these engineers came to Chico to inspect my vehicle. Respectfully, I beg to differ and ask you to open a case to investigate further whether this is an anomaly that constitutes a safety concern and/or a distracting issue, which is another threat to safety. For further information, contact Mercedes Benz of Chico Service 530-345-9444. I wish to add credibility to this case, as I am a retired airline captain with 26,000 hours of flying time, including 10,500 hours on the Boeing 777. You can understand my emphasis on safety: anything that impairs visibility and distracts, in my view, is a red flag. I certainly appreciate the work all of you do, with thanks, [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATIO
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11746077June 23, 2026
ELECTRICAL SYSTEM, VISIBILITY/WIPER, UNKNOWN OR OTHER
The digital instrument cluster and center infotainment display screen went completely black and blank while the vehicle was in motion. This immediate failure blinded the driver to critical safety telemetry, including the current vehicle speed, gear positioning, and active safety warning telltales, creating an immediate, severe crash hazard on the roadway.This symptom is identical to the failure condition detailed in active NHTSA Safety Recall Campaign 26V281000 for this exact model year. The vehicle is currently held at an authorized Mercedes-Benz dealership (Mercedes-Benz of West Covina) where technicians confirmed the physical screen and plug blackout but are actively refusing to execute the safety recall remedy without a $1,272.95 out-of-pocket consumer diagnostic fee, falsely claiming a localized cosmetic stain on a connection plug voids the manufacturer's obligation to repair a known, federally acknowledged factory software design defect.The vehicle remains unmodified, intact, and available for federal or corporate engineering inspection at the dealership location upon request. No warning lamps or symptoms appeared prior to the sudden screen blackout.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11745590June 22, 2026
FUEL SYSTEM, GASOLINE
The contact owns a 2012 Mercedes-Benz E350. The contact stated that while driving at an undisclosed speed, there was an abnormal odor coming from the inside of the vehicle. No warning lights were illuminated. The vehicle was taken to an independent mechanic, where it was diagnosed with a fuel leak. The vehicle was not repaired. The contact researched and was made aware of NHTSA Campaign Number: 12V557000 (Fuel System, Gasoline); however, the VIN was not included in the recall. A dealer was contacted; however, the vehicle was not yet diagnosed by the dealer. The manufacturer was notified of the failure. The failure mileage was approximately 70,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11743891June 13, 2026
BACK OVER PREVENTION: SENSING SYSTEM: CAMERA
Back up camera not functioning. Emblem cover will not retract. Must use key fob or electronic controls to open the trunk.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11743443June 11, 2026
POWER TRAIN
The contact owns a 2019 Mercedes-Benz E450 4Matic. The contact stated while driving at 40 MPH, the vehicle failed to accelerate as intended and made an abnormal clunking sound. There was no warning light illuminated. The contact had received the recall notification letter of NHTSA Campaign Number 26V216000 (Power Train). The vehicle was taken to the local dealer, who confirmed the parts were backordered. The vehicle was not diagnosed or repaired. The manufacturer was not contacted. The failure mileage was approximately 46,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11742258June 5, 2026
FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING
My auto assist emergency braking function has triggered 3 times over the last few months with no other cars or hazzards near me. There was not warning. Each time it caused sudden unexpected severe jerking. More importantly, had there been a car behind me, it would have run into me and caused an collision. I reported this to the dealer who was unable to replicate the problem so it returned my car without a solution. I have notified MBUSA.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11741489June 2, 2026
ENGINE
The contact owns a 2023 Mercedes-Benz E-Class. The contact stated while driving at an undisclosed speed, the engine seized. The contact stated that the failure occurred while making a left turn. In addition, a malfunction error message illuminated. The contact stated while attempting to start the vehicle, the vehicle failed to start with the push to start. However, the vehicle did start using the key fob. The vehicle was taken to the dealer, however the failure was not duplicated. The manufacturer was not made aware of the failure. The failure mileage was approximately 25,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11741513June 2, 2026
ELECTRICAL SYSTEM
The contact owns a 2024 Mercedes Benz E. The contact stated that while the vehicle was parked, and started, the instrument panel and infotainment screen became blank. No warning indicators or audible assistance and other vehicle assistance were not able to display due to the failure. The dealer was contacted; however, the vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The approximate failure mileage was 21,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11741227June 1, 2026
SERVICE BRAKES
Brake failure due to leaking brake fluid after dealership conducted rear sub frame extended warranty coverage replacement and recent brake fluid services and after two (2) multi point inspections including video and reported “no items failed” and “no items cautioned.” Vehicle was released to me both times Vehicle was inspected and is available for further inspections. My safety was jeopardized due to brake system failure while traveling at high speed on public highway. The problem was confirmed by two (2) dealerships. “ Please see below for recommended repairs on your 2012 E350, VIN - [XXX] Inspection by a different Mercedes Benz dealership reported the following: [XXX] Concern – vehicle is leaking brake fluid from behind the drivers front wheel / tire Cause – Confirmed concern, installed vehicle on lift and found brake fluid dripping from plastic side panel under the drivers door. Brake fluid flush recently completed on vehicle by Portsmouth MB, verified bleeding valves on calipers are tight and not leakingRemoved paneling and found fluid is dripping from wheel well area. Removed left front wheel well cover, and found rear brake lines are leaking due to heavy corrosion and bubbling (see attached photo). Correction – Rear brake lines need to be replaced to repair. Due to corrosion, will require brake hoses due to rotted connections. Lines are formed, fitted and secured by technician during repair (they do not come pre-formed to vehicle). Repair Estimate – Labor ($199.88 / hr) 9 hours (includes diagnostic time), $1798.92 Parts, estimate $690 if no further connections are needed (tax included) Shop supplies, $26.95 Estimate $2520 total repair **Tech notes there is a fuel line running in an area of the brake lines that is showing bubbling in the metal, not yet leaking. Additional $375 parts and labor to replace if we replace with the brake lines. MB parts states there are only 2 of these lines remaining globally.” INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11741091May 31, 2026
SERVICE BRAKES, AIR BAGS, FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING
While traveling at highway speeds with adaptive cruise control safety systems engaged, the vehicle failed to detect a hazard immediately ahead in its lane. The Forward Collision Warning failed to alert the driver, and the Automatic Emergency Braking (AEB) failed to initiate automated emergency deceleration. Manual emergency braking was attempted by the driver in the final milliseconds, but the vehicle's braking system failed to sufficiently decelerate the vehicle, resulting in a high-energy frontal collision. Despite severe structural deformation concentrated entirely on the front fascia and crumple zones, the Supplemental Restraint System (SRS) completely failed and no airbags deployed. The driver sustained injuries to the neck, back, and ribs. The vehicle has been declared a total loss by insurance and is available for inspection at a salvage facility. The manufacturer was notified over a month ago (Case #21986205) but has failed to pull the Event Data Recorder (EDR) telemetry or provide an engineering review timeline. No prior warning lamps or system malfunction messages were present before the incident.
Crash:
Yes
Fire:
No
Injuries:
1
Deaths:
0
#11740420May 27, 2026
ELECTRICAL SYSTEM, AIR BAGS:SRS MALFUNCTION WARNING LAMP/LIGHT
The contact owns a 2026 Mercedes-Benz. The contact stated that while driving at various speeds, an SRS warning light illuminated. The vehicle was taken to a local dealer, where it was diagnosed as having an electrical issue that needed an SRS replacement. The vehicle was repaired; however, the failure reoccurred. The manufacturer was made aware of the failure. The failure mileage was approximately 32,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11739972May 26, 2026
ELECTRICAL SYSTEM, FUEL/PROPULSION SYSTEM, POWER TRAIN
On a recent drive, my 2024 Mercedes-Benz E350 VIN: [XXX] suffered a catastrophic safety hazard involving a complete loss of drive power and sudden engine shutdown while operating at highway speeds. I had to navigate across active highway lanes with no engine propulsion to reach safety. Simultaneously, the vehicle experienced a widespread failure of its master interior electrical grid. The driver's power seat became permanently frozen in a fully reclined position while driving, creating an immediate driver-ergonomic safety hazard. Multiple interior USB charging ports and the passenger-side power seat also lost power entirely. This combination of engine stalling and localized interior electronic failure strongly aligns with NHTSA Recall 24V-115, which involves faulty 80-Amp fuses in the main fuse box causing a loss of propulsion. The vehicle also currently displays an open, unresolved safety recall for its airbag systems. The manufacturer's dealership is attempting to charge multiple diagnostic fees to investigate these interconnected issues rather than processing them under an active safety campaign. I am filing this report to document a severe, active propulsion failure in the field that represents an immediate threat to life and highway safety. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11738986May 20, 2026
FUEL SYSTEM, GASOLINE
The contact owns a 2014 Mercedes-Benz E-Class. The contact stated while driving at an undisclosed speed, the contact noticed fuel odor in the interior and exterior of the vehicle. The vehicle was not diagnosed or repaired by an independent mechanic or the dealer. The dealer was made aware of the failure. The contact referenced an unknown recall; however, the VIN was not associated with a recall related to the failure. The manufacturer was made aware of the failure. The contact was advised to take the vehicle to the dealer for diagnostic testing. The failure mileage was approximately 78,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11738921May 19, 2026
STRUCTURE:BODY, UNKNOWN OR OTHER
Rear glass window on convertible soft top is prematurely separating/delaminating from top assembly on 2020 Mercedes-Benz E350 convertible with under 8,000 miles. Glass is integrated into the convertible top and failure may lead to reduced rear visibility, possible glass detachment, water intrusion, and safety hazard while driving. This appears premature and inconsistent with expected vehicle life.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11738284May 16, 2026
POWER TRAIN, ENGINE, ELECTRICAL SYSTEM
After being parked for several days at the airport, the vehicle turned on, but would not start. The instrument cluster had the following message, “Service required do not change transmission position”. I contacted Mercedes road side assistance who cannot access this parking level. They indicated I should push the car out of the lot and have it towed with a flat bed. After a review they had a software reset that is available after 40 minutes. They indicated to drive only outside, then to park and have the vehicle towed. If I drove further it could void the warranty. This scenario repeated multiple times over several months, including maybe five weeks in the shop in the first four months. Mercedes ultimately purchased the car back from me. Indicated the car was not fixable. The car is now for sale on the retail lot at the same dealer.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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