2012 Mercedes-Benz GL-Class Engine Problems

The contact owns a 2012 Mercedes-Benz GL350. The contact stated that while driving at an undisclosed speed, the accelerator pedal was depressed; however, the vehicle failed to accelerate as intended. In addition, the check engine warning light illuminated. The vehicle was taken to the dealer where it was diagnosed with turbo failure. The contact was informed that the turbo needed to be replaced. The vehicle was not repaired. The contact was informed that the repair could not be covered under the warranty. The contact stated that the failure had previously occurred almost two years prior, and the repair was covered under an unknown recall. The contact also stated that the repair was completed with a refurbished turbo charger. The manufacturer was not made aware of the failure. The failure mileage was approximately 130,000.

Mercedes Benz settled with U.S Government the diesel emission scandal. There are about 122k class members. Under the settlement, Mercedes gave 122k class members 4 year/48k miles warranty. Under the warranty, MB replaced the timing chain in May 2022 but on April, 2023 while driving on I-95 in Massachusetts, the engine completely got shut down while driving 55 miles per hour. Luckily, no one got injured. But the car was not controllable. I barely pulled to the side of the hwy and called the towing. Brought it to MB of Westwood. MB Westwood did a diagnostics.Below is the note Mercedes Benz of Westwood: The car is still at the dealership if you want to send an investigator, Engine Rebuild/Replace: after further tear down found that timing chain guide rails broke, which then got chewed up from chain and gears into smaller pieces. these small pieces got suck up into the oil pump pick up tube, blocking oil flow. The lack of oil to main engine components caused them to overheat and contacted each other (metal to metal). which ends up heating to a point in which the components stick to each other and not able to move freely any more.. Basically, The replaced Timing Chain destroyed plastic guide rails, which destroyed my engine. I notified Mercedes Benz of USA and the dealership that they need to recall 122k class members and fix the problem, but they refused to take any actions. By ignoring the problem, it could lead to casualties to thousand of people. I hope you take actions and bring Mercedes Benz USA accountable and they start recalling and fixing the problem before its too late.

TL* THE CONTACT OWNS A 2012 MERCEDES-BENZ GL350BTC. WHILE DRIVING APPROXIMATELY 65 MPH, SMOKE APPEARED FROM THE FRONT END AND UNDERNEATH THE VEHICLE. THERE WERE NO WARNING INDICATORS ILLUMINATED. THE VEHICLE WAS PULLED OVER TO THE SIDE OF THE ROAD AND LEFT TO COOL DOWN. THE CONTACT OPENED THE HOOD AND NOTICED THAT THE ENGINE COMPARTMENT WAS BURNED. THERE WAS NO FIRE OR POLICE REPORT. THERE WERE NO INJURIES. THE VEHICLE WAS TOWED TO THE CONTACTS RESIDENCE WHERE AN INDEPENDENT MECHANIC DIAGNOSED THAT EVERYTHING UNDER THE HOOD WAS BURNED. THE TECHNICIAN DIAGNOSED THAT THE FUEL INJECTOR WAS STUCK AND CAUSED THE FIRE. THE CONTACT CALLED MERCEDES-BENZ OF BEDFORD AT 440-439-0100 (LOCATED AT 18122 ROCKSIDE RD, BEDFORD, OH 44146) AND WAS INFORMED THAT THE VEHICLE COULD BE PICKED UP BY THE DEALER AND A DISCOUNT COULD BE OFFERED TOWARD THE REPAIRS. THE DEALER ALSO STATED THAT THERE WAS NO RECALL OR WARRANTY. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND STATED THAT THE WARRANTY WAS EXPIRED. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS APPROXIMATELY 100,000.

WHILE DRIVING BETWEEN BOISE GOING TO PORTLAND, I EXPERIENCED SUDDEN LOST OF POWER IN VERY DANGEROUS TRAFFIC SITUATION. THERE WERE A ROAD WORK AREA, I HAD SEMI-TRUCKS IN FRONT AND BEHIND ME. IT HAPPENED ON I-84W, AROUND 20 MILES OUT OF BAKER CITY OR, MY CAR IS WELL MAINTAINED AT THE DEALERSHIP BARRIER IN BELLEVUE. THERE WAS NO WARNING THAT SOMETHING IS WRONG. I HAD FUEL, THERE WERE NO WARNING LIGHTS OR SIMILAR INDICATION OR COMMING TECHNICAL ISSUE. THE CAR LOST POWER, I MANEGED TO MOVE TO SIDE THAT THE TRUCK BEHIND ME DIDN'T HIT ME! I CALLED A BAKER CITY TOWING, THEY TOW MY VEHICLE TO A SHOP IN THE TOWN, THE SHOP HAD RUN DIAGNISTICS, OIL WAS OK, OBD GAVE THEM 2 FAILURE CODES, THE TROUBLE CODE 126800, STANDART DIAGNISTICS COULD NOT RECOGNIZE THE FAILURE, FURTHER INTERNET SEARCH DIRECTED TU TURBO CHARGE FAULT AND ADVICED ME TO CONTACT MERCEDES. I CALLED BARRIER, THEY DIDN'T HELP ME AT ALL, DIRECTED ME TO MB-ROAD ASSISTANCE, THEY ORGANIZED TOWING MY CAR TO MB DEALERSHIP IN BOISE. I WOULD LIKE TO EMPHASIZE THAT THE WAY HOW THE CAR FAILED WAS NOT A 21ST CENTURY EXPERIENCE. NO WARNING, NOTHING TELLING ME THAT THE TECHNICAL STATUS OF THE CAR DETERIORATE..

ENGINE OIL COOLER LEACK $3500 REPAIR JOB AT MERCEDES GREENWAY HOUSTON , AIRMATIC SYSTEM MALFUNCTION, $3500 ABS SPEED SENSOR , INTAKE MANIFOLD RUNNER CONTROLL BROKEN