2014 Mercedes-Benz E550 Problems

Both driver and front passenger headrest airbags have deployed for no cause. This is is the second time this has occurred on both sides. No collision occurred in both incidents. First time it occurred under warranty and Mercedes fixed the issue. This time it occurred again and the car is not in warranty. Without functional headrest airbags the safety is greatly compromised for the occupants of the car and can lead to fatal incidents. It seems like a recurring problem with this model as it has occurred twice over 9+ years and both times there was no collision etc.

MERCEDES HAS REFUSED TO REPLACE DEFECTIVE TAKATA AIRBAG SINCE FEBRUARY OF 2019 MAKING DIFFERENT EXCUSES WHY THEY CAN'T REPLACE THE PASSENGER SIDE AIRBAG WITH KNOWLEDGE THAT IF ACCIDENT CAN BE LIFE THREATENING.

Dealer reports that, in addition to the dangerous corrosion on rear subframe covered by the extended warranty program, the rear brake lines are dangerously corroded and may fail at any time. I inquired about how this is even possible as I am accustomed to vehicles with cupronickel brake lines that do not corrode. I was told they are merely enameled steel on this model and prone to premature corrosion where they are mounted to the chassis with plastic clips that wear off the enamel and allow premature corrosion and eventually catastrophic failure. I was also told the replacement parts are now cupronickel, indicating Mercedes understands the original design was defective. I believe this should have been covered under the same program as the rear subframe, not be used as an upsell tool to customers affected by that issue. I also believe steel brake lines should just be banned outright for all vehicles, the risk of rupture due to corrosion leading to brake failure is far too high.

Parking brake pedal assembly failed. Yes it's available for inspection. My home is on a hill, a functioning parking brake is required to prevent the vehicle from rolling. Personal mechanic identified issue and replaced part. There were no warning lights or lamps indicating an issue.

TL* THE CONTACT OWNS A 2014 MERCEDES-BENZ E550. WHILE DRIVING AT LOW SPEEDS, THE REAR PASSENGER SIDE SPEAKER AND WINDOW BEGAN TO SMOKE. THERE WAS ALSO AN ABNORMAL RUBBER AND BURNING ODOR AND A CRACKING NOISE EMERGING FROM THE VEHICLE. THERE WERE NO WARNING INDICATORS ILLUMINATED. THE CONTACT CALLED MERCEDES-BENZ OF DENVER (940 S COLORADO BLVD, DENVER, CO 80246, (303) 953-4581), BUT WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT CONTACTED. THE FAILURE MILEAGE WAS 61,950.

MY VEHICLE HAS THE DISTRONIC WITH LANE SENSING. THE OTHER DAY, THE AREA OF THE FRONT WINDSHIELD AROUND THE CAMERAS SPONTANEOUSLY BEGAN TO CRACK IN A CIRCULAR MANNER. NO OTHER CHIPS OR DINGS WERE PRESENT. WHEN I RESEARCHED THIS ISSUE ONLINE, I AM FINDING IT TO BE A VERY COMMON ISSUE. IT APPEARS IT CAN HAPPEN AT ANY TIME AND WITH REPLACEMENT GLASS AS WELL. MINE CRACKED ON A 95 DEGREE F DAY IN SOUTHERN CALIFORNIA.

I was driving in the Dallas area at highway speed (approx 70mph) during rush-hour traffic when a crackling sound presented in the dashboard area from what appeared to be the sound system (Harmon Kardon surround system). This was immediately followed by the unmistakable smell of burning plastic or something similar. Smoke coming from the center speaker in the dashboard followed subjecting car occupants to potentially hazardous smoke and chemicals resulting from the fire.All signs suggested an electrical fire which was alarming considering this occurred at highway speed. Turning off the sound system did not stop the issue. My safety and that of others on the highway were put at risk because a fire of unknown origin occurred while driving at highway speeds. No accident occurred. Further exploration of the issue from a safe area off of the highway confirmed the following: 1) possible electrical fire emanating from the center speaker of the dashboard 2) center speaker was damaged and appeared melted 3) the only way to stop the fire was to remove the fuse powering the sound amplifier which allowed the car to be driven to the local Mercedes Benz dealer/repair center The car was inspected by the local Mercedes Benz dealer who confirmed: 1) the center speaker was damaged and not repairable 2) the cause of the problem was a "shorted" and otherwise faulty amplifier. 3) the cost to replace the speaker estimated over $400 4) the cost to replace the amplifier estimated over $2700 There are no safety recalls on this particular issue. However, an investigation of the matter on NHTSA and Mercedes Benz user groups has identified numerous occurrences of a similar nature in the 2014 "e" class vehicles. The amplifier, which was confirmed to be the cause of the fire, would appear to have a documentable and reproduceable fault which: 1) presents a safety hazard to owners/drivers of the vehicle, 2) puts other drivers as risk drivers, 3) subjects vehicle occupants to hazardous fumes

STARTED IGNITION, IDLE FOR ABOUT 3 MINS WARMING UP THE ENGINE. PREPED TO LEAVE TO CURRENT DESIGNATION. REVERSE, PULLING OUT TO THE RIGHT I TURN MY STEERING WHEEL ALL THE WAY TO THE RIGHT, CAR SHUTS OFF, ALL LIGHTS APPEAR ON THE DASH. TURN OFF AND RESTARTED. AND CONTINUE TO DRIVE IN REVERSE REPEATING THE STEERING TO THE RIGHT... CAR STALLS AGAIN.... I FINALLY MAKE IT HOME BECAUSE I WAS NOT SURE IF THE CAR WAS SAFE TO DRIVE. I PARKED, TURNED ALL THE WAY TO THE RIGHT MADE A WEIRD IDLE NOISE MAYBE 4X LOUDER THEN STANDARD BUT DEEPER. AND BOOM STALLS. I DON'T WANT TO TAKE IT TO THE DEALER SHIP AS THEY WILL PLAY GAMES WITH MY PREVIOUS CAR THEY MADE ME PAY FOR THE RECALL I NEVER KNEW ABOUT! IF ANY ONE ELSE HAS THIS PROBLEM DON'T MAKE FULL RIGHT TURNS ON THE STEERING. *TR

TL* THE CONTACT OWNS A 2014 MERCEDES-BENZ E550. WHILE DRIVING AT LOW SPEEDS, THE REAR PASSENGER SIDE SPEAKER AND WINDOW BEGAN TO SMOKE. THERE WAS ALSO AN ABNORMAL RUBBER AND BURNING ODOR AND A CRACKING NOISE EMERGING FROM THE VEHICLE. THERE WERE NO WARNING INDICATORS ILLUMINATED. THE CONTACT CALLED MERCEDES-BENZ OF DENVER (940 S COLORADO BLVD, DENVER, CO 80246, (303) 953-4581), BUT WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT CONTACTED. THE FAILURE MILEAGE WAS 61,950.

CUSTOMER RAN CAR OUT OF OIL DESTROYING ENGINE AND TURBO'S TOTAL COST OF REPAIR IS 25,000

STARTED IGNITION, IDLE FOR ABOUT 3 MINS WARMING UP THE ENGINE. PREPED TO LEAVE TO CURRENT DESIGNATION. REVERSE, PULLING OUT TO THE RIGHT I TURN MY STEERING WHEEL ALL THE WAY TO THE RIGHT, CAR SHUTS OFF, ALL LIGHTS APPEAR ON THE DASH. TURN OFF AND RESTARTED. AND CONTINUE TO DRIVE IN REVERSE REPEATING THE STEERING TO THE RIGHT... CAR STALLS AGAIN.... I FINALLY MAKE IT HOME BECAUSE I WAS NOT SURE IF THE CAR WAS SAFE TO DRIVE. I PARKED, TURNED ALL THE WAY TO THE RIGHT MADE A WEIRD IDLE NOISE MAYBE 4X LOUDER THEN STANDARD BUT DEEPER. AND BOOM STALLS. I DON'T WANT TO TAKE IT TO THE DEALER SHIP AS THEY WILL PLAY GAMES WITH MY PREVIOUS CAR THEY MADE ME PAY FOR THE RECALL I NEVER KNEW ABOUT! IF ANY ONE ELSE HAS THIS PROBLEM DON'T MAKE FULL RIGHT TURNS ON THE STEERING. *TR

IN STOP AND GO TRAFFIC APPROACHING AN INTERSECTION ON A WET ROAD, THE CAN BUS FAILED, DISABLING ALL OR NEARLY ALL SAFETY SYSTEMS. AT THE TIME, NUMEROUS WARNING MESSAGES AND LIGHTS APPEARED ON THE DASH FOR SRS, ABS, SEATBELT PRETENSIONER, ETC. THE ENGINE WOULD NOT TURN OFF USING THE START-STOP BUTTON, AND THE VEHICLE WOULD NOT SHIFT OUT OF DRIVE. ACCORDING THE DEALER SERVICE CENTER, A REAR BLIND SPOT RADAR SENSOR IS CORRODED, AND CAUSED A SHORT IN THE CAN BUS. THIS EXACT FAILURE HAS OCCURRED WITH AT LEAST ONE OTHER VEHICLE, DOCUMENTED HERE: HTTPS://WWW.BENZWORLD.ORG/FORUMS/W212-E-CLASS/2911098-LANE-ASSIST-RADAR-SENSOR-FAILURE-CAUSES.HTML IT APPEARS THAT WHILE CORRODED RADAR SENSORS ARE FAIRLY COMMON, WATER FROM THE ROAD CAN SOMETIMES CAUSE THE SENSOR TO SHORT THE ENTIRE CAN BUS. I CAN PROVIDE THE EXTENDED PRINTOUT OF STORED CAN FAILURE MESSAGES IF NECESSARY.