2016 Mercedes-Benz GLE 350 problems

Filed Sep 23, 2026 · Acceleration, Brakes · NJ

On 8/28/2026, my Mercedes-Benz GLE 350 (W166, M276 engine) experienced a sudden, catastrophic engine stall while driving in active traffic. There was no Check Engine Light (CEL), dashboard warning, or mechanical hesitation prior to the failure. The vehicle instantly lost all propulsion, power steering, and power braking assist, creating an extreme crash hazard and requiring immense physical effort to maneuver the dead vehicle off the roadway. Independent diagnostic teardown by a module specialist confirmed the root cause: an unrepairable internal short circuit between the internal PCB layers of the Engine Control Unit (ECU). Because Mercedes-Benz chose to mount this sensitive electronic module directly to the top of the hot engine block, it is subjected to extreme thermal cycling and vibration. This predictable thermal degradation causes the internal board layers to delaminate and short out. When this internal short occurs, the ECU instantly dies and shuts down the entire vehicle without warning. This is a severe, life-threatening engineering defect. A safety investigation is urgently needed to address the mounting location and thermal failure rate of M276 ECUs before a sudden high-speed stall results in a fatal collision.

Filed Sep 23, 2026 · Acceleration, Brakes · NJ

On 8/28/2026, my Mercedes-Benz GLE 350 (W166, M276 engine) experienced a sudden, catastrophic engine stall while driving in active traffic. There was no Check Engine Light (CEL), dashboard warning, or mechanical hesitation prior to the failure. The vehicle instantly lost all propulsion, power steering, and power braking assist, creating an extreme crash hazard and requiring immense physical effort to maneuver the dead vehicle off the roadway. Independent diagnostic teardown by a module specialist confirmed the root cause: an unrepairable internal short circuit between the internal PCB layers of the Engine Control Unit (ECU). Because Mercedes-Benz chose to mount this sensitive electronic module directly to the top of the hot engine block, it is subjected to extreme thermal cycling and vibration. This predictable thermal degradation causes the internal board layers to delaminate and short out. When this internal short occurs, the ECU instantly dies and shuts down the entire vehicle without warning. This is a severe, life-threatening engineering defect. A safety investigation is urgently needed to address the mounting location and thermal failure rate of M276 ECUs before a sudden high-speed stall results in a fatal collision.

Filed Sep 6, 2026 · Electrical, Fuel system · NJ

While driving my 2016 Mercedes-Benz GLE 350, the vehicle suddenly shut off and lost propulsion without warning. There was no check-engine light or other warning before the failure. The engine would crank afterward but would not restart, leaving the vehicle disabled. The vehicle has an open the federal safety agency safety recall (22V‑955) involving the fuel pump control unit and potential loss of propulsion. The vehicle is currently at Benzel-Busch Mercedes-Benz for recall inspection and diagnosis. I am reporting this because the sudden loss of propulsion while driving created a serious safety risk.

Filed Aug 9, 2026 · Transmission · NC

At 72,000 miles the rear differential failed. Repair required else car could abruptly stop rolling, become uncontrollable and cause a serious wreck. The part is over $5,000

Filed Apr 10, 2026 · Engine, Fuel system · 133,000 miles · CA

The contact owns a 2016 Mercedes-Benz GLE350. The contact stated that while opening the door, a cracked fuel injector was spraying gasoline. When the door handle was pulled, an aftermarket module ignited the fuel, causing an explosion and heavy smoke from the engine compartment. The contact stated that the vehicle had been taken to the dealer previously for the same issue, but the dealer dismissed the information and returned the vehicle. Shortly afterwards, the failure reoccurred and was recorded. The vehicle had been at the dealer for two months, and the dealer blamed the failure on an aftermarket part, even though the dealer had installed the parts. The vehicle was driven to the dealer, where it was diagnosed with fuel injector failure and was associated with the aftermarket parts that were installed by the dealer. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 133,000.

Filed Aug 5, 2025 · Acceleration, Brakes · TX · crash

While waiting for traffic signal to change with foot on break pedal, the suv accelerated suddenly and lurched forward and rear ended the car ahead of me! Luckily, it was a Hummer with a tire mounted on the rear door and damage occurred only to my MB. Front end has severe damage, hood buckled and headlight broken! It was a spooky experience! 'chk breakpad wear' warning light has been coming on lately when starting and I was planning to get breaks chkd. But this was a frightening experience! Is there an issue with MB ECU like this? I'm in the process of filing insurance claim.

Filed Mar 31, 2025 · Steering · 70,000 miles · PR

The contact owns a 2016 Mercedes-Benz GLE350. The contact stated that while driving at various speeds, an abnormal sound was coming from the steering box. No warning light was illuminated. The local dealer was not contacted. The vehicle was not diagnosed or repaired. In addition, the contact related the failure to the federal safety agency Campaign Number: 17V241000 (Steering); however, the VIN was not included. The manufacturer was made aware of the failure. The failure mileage was approximately 70,000.

Filed Feb 24, 2025 · Fuel system · CO · fire

This has previously been reported, but the federal safety agency email indicated I needed to file formal complaint. Fuel injector(s) leaked while vehicle parked overnight in driveway. ECU detected fuel and subsequent ignition/spark caused "explosion' blowing out engine intake manifold (appx 50-75 pieces found). All 6 injectors and intake manifold required replacement. Mercedes Benz does have recall notification for failed/leaking fuel injectors, which includes both my model, and model year- but has claimed my VIN is not covered. MB recall campaign # 2022030003, dated 04/22/2022. I have retained engine intake manifold (main piece) for inspection. Fuel injectors were returned to MB. Safety risk is relatively obvious due to "explosion" and potential fire. Independent service agency (German Motors, Lakewood, CO- in business for over 25 years as MB only repair agency) diagnosed and performed repairs. Further, they informed me that in the investigation, they an other independent repair agencies/shops have in fact seen this before. No warnings, lights, or other symptoms were evident prior to injectors leaking.

Filed Feb 18, 2025 · Fuel system · CO · fire

Vehicle sitting in driveway. Fuel injector leakage and resultant engine control unit detecting fuel set off spark which resulted in explosion under hood. Completely destroyed engine intake manifold (over 100 pieces found), and requires all (6) new fuel injectors. Due to core return value, I will NOT be keeping injectors, but they have been inspected by certified mechanic where repairs are being done. Safety/risk is obvious- fire danger, explosion danger, etc. Vehicle was towed to German Motors, Lakewood CO. for repair. No warning indicators, no lights. Mechanics did inform me that this issue has been seen on other vehicles. Network of MB mechanics have been aware. MB USA is also aware of fuel injector leakage issues, and have issued a Safety & Emissions Recall Campaign (# 2022030003, dated 8/22/2022) for this model year and vehicle model type (GLE). MB USA however asserts that my specific VIN is not included in recall- but offers no reason. Currently, due to MB inability to provide replacement parts (engine intake manifold unavailable until Sept. 2025!), vehicle is still in repair facility. Invoices and write up will be available after repairs completed (using reclaimed intake manifold along with new injectors).

Filed Feb 13, 2025 · Fuel system · CO · fire

car has caught on fire due to (as diagnosed by certified MB mechanic) leaking from fuel injector(s). Issue is known to many MB mechanics. Issue DOES have a recall for other (non GLE350) models in this same year (2016). Request recall issued! Request assistance with having MB warranty/repair problem