1997 Mercedes-Benz 420 Problems
Owner-reported complaints filed with NHTSA, grouped by component
Data refreshed
What this page shows
Everything below is an owner-reported complaint submitted to NHTSA about the 1997 Mercedes-Benz 420, grouped by the component NHTSA recorded on the report. These are not confirmed defects, and they are not recalls. NHTSA does not verify most reports before publishing them, and a category with more reports in it is not evidence that a part is defective.
Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.
Reports by component
Ranked by how many owner reports name each component category
- Suspension1145.8%
- Interior & seats28.3%
- Seat belts28.3%
- Transmission28.3%
- Fuel system28.3%
- Visibility14.2%
- Driver assistance14.2%
- Exterior lighting14.2%
- Powertrain (other)14.2%
- Body & structure14.2%
Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.
Each component in detail
What the reports in each category say, in the owners' own words
Suspension
Reports naming suspension components — springs, struts, shocks, control arms and related hardware.
From owner reports, verbatim
WELD BROKE AND DISLODGED THE SPRINGS.. *TR
I AM FILING A COMPLAINT REGARDING AFTER WARRANTY SUPPORT FOR THE ABOVE REFERENCED VEHICLE. THE SPRING SEAT DETACHED FROM THE BODY OF THE AUTOMOBILE CAUSING THE SUSPENSION TO FAIL WHILE THE VEHICLE WAS IN MOTION AT 45 MPH ON A DOWNHILL GRADE. AS THE SUSPENSION DETACHED FROM THE CAR, THE LEFT FRONT SIDE DRAGGED ON THE ROAD CAUSING THE RIGHT REAR TO SLIDE INTO THE OTHER LANE OF TRAFFIC. IMPACT FROM AN APPROACHING VEHICLE WAS NARROWLY ADVERTED. FURTHER, LARGE PIECES OF THE VEHICLE INCLUDING THE COIL SPRING WHERE LEFT IN THE ROAD CAUSING A HAZARD. MY MECHANIC AND THE FACILITY THAT REPAIRED THE VEHICLE HAS STATED THAT THIS IS A COMMON DEFECT IN THE DESIGN OF THIS VEHICLE. FURTHER, A INTERNET SEARCH REVEALS NUMEROUS COMPLAINTS OF THIS FAILURE SPECIFIC TO THIS MODEL. I HAD A DISMISSIVE CONVERSATION WITH MERCEDES BENZ USA. WHO STATED THAT THEY WOULD ONLY INVESTIGATE THE PROBLEM IF THE REPAIR WAS DONE AT AN AUTHORIZED MERCEDES BENZ DEALER. I WOULD ASK THE NTSB TO RE OPEN THIS ONGOING ISSUE WHICH IF LEFT UNADDRESSED COULD CAUSE SERIOUS INJURY OR DEATH. *TR
Interior & seats
Reports naming seats, latches, locks, linkages and interior fittings.
From owner reports, verbatim
DRIVERS SIDE SEATBACK IS STUCK IN RECLINING POSITION. CONSUMER FEELS THIS IS NOT SAFE BECAUSE CONSUMER CAN HARDLY SEE OUT WINDOW, AND THIS IS UNSAFE WAY TO DRIVE.*AK
REAR SEAT BELT RESTRAINT FAILED.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Seat belts
Reports naming seat belts, buckles, retractors and pretensioners.
From owner reports, verbatim
WAS MAKING A LEFT TURN WHEN ISUZU TROOPER PASSENGER FRONT HIT PASSENGER SIDE FRONT WHEEL OF MERCEDES AND PASSENGER DOOR WITH DRIVER SIDE FRONT. DURING IMPACT, FRONT SEAT BELT ON DRIVER'S SIDE FAILED TO RESTRAIN DRIVER. ALSO, CAUSED DRIVER'S BREAST IMPLANTS TO RUPTURE. OTHER PASSENGER FAILED TO WEAR SEAT BELT. BUT, AIR BAG DEPLOYED. *AK
REAR SEAT BELT RESTRAINT FAILED.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Transmission
Reports naming the automatic or manual transmission, including shifting behaviour, shudder, slipping and transmission control modules.
From owner reports, verbatim
AUTOMATIC TRANSMISSION MALFUNCTIONED. IT WOULD GET STUCK IN THE GEARS AND MAY RESULT A CRASH. PLEASE PROVIDE FURTHER INFORMATION. *AK
AUTOMATIC TRANSMISSION FAILED.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Fuel system
Reports naming fuel storage or delivery — tanks, pumps, lines, injectors and fuel leaks.
From owner reports, verbatim
I RECENTLY HAD A GAS TANK PRESSURE SENSOR REPLACED ON MY 1997 E MODEL MERCEDES. UPON INSPECTION OF THE INTERIOR OF THE GAS TANK, IT WAS DISCOVERED THAT THE RETURN LINES INSIDE THE TANK HAD BECOME DISCONNECTED WHICH COULD RESULT IN LOSS OF TANK PRESSURE, LEAKAGE, AND /OR IMPROPER EMISSION SYSTEM SENSOR READOUTS. THE TANK HAS NOT BEEN DAMAGED DUE TO MPACT SO THE DISCONNECTED LINE APPEARS TO BE A DESIGN OR ENGINEERING DEFECT. IN ADDITION, THE IMPROPER FUNCTIONING OF THE RETURN LINE EQUIPMENT WITHIN THE GAS TANK HAS A MAJOR IMPACT ON GAS MILEAGE. THE DEFECTIVE RETURN LINES REQUIRE THE REPLACEMENT OF THE TOTAL GAS TANK AS A REPAIR MEASURE AT A COST OF OVER $800. I HAVE RETAINED THE DEFECTIVE TANK. PLEASE ADVISE IF YOU NEED ANY ADDITIONAL DETAILS
THE GAS TANK ON MY MERCEDES BENZ E420 COLLAPSED. IT LOOKED LIKE A GIANT STEPPED ON IT. PRIOR TO THE TANK COLLAPSING THE "CHECK ENGINE" LIGHT CAME ON AND I HAD TO HAVE THE FUEL EVAPORATION SYSTEM REPAIRED. I TOOK THE CAR TO BERBERIAN EUROPEAN MOTORS (A MERCEDES BENZ DEALER) IN STOCKTON CA. FOR REPAIR. THIS FAILURE IS SUPPOSED TO BE COVERED BY MY CALIFORINA EMISSION CONTROL WARRANTY. THE MERCEDES BENZ FACTORY REP. SAID THAT THEY WERE NOT GOING TO FIX THE PROBLEM UNDER THE WARRANTY AND I HAD TO PAY FOR ALL THE REPAIRS MYSELF. MY POINT IN CONTACTING YOU IS THAT A GAS TANK THAT JUST CRUMPELS UP BY ITSELF SEEMS TO BE A SAFETY PROBLEM YOU SHOULD LOOK INTO. THE OTHER QUESTION IS, WHY IS MERCEDES BENZ NOT INTRESTED IN TAKING CARE OF THE PROBLEM UNDER THE EMISSION WARRANTY?
Too few reports in this category for a page of its own — they appear in the full complaint list.
Visibility
Reports naming windshields, glass, wipers, defrosters and mirrors.
From owner reports, verbatim
WHILE DRIVING ABOUT 65 MPH IN RAINY WEATHER WINDSHIELD WIPERS WOULD NOT ACTIVATE WHEN THE SWITCH WAS TURNED ON. VEHICLE WAS TAKEN TO DEALERSHIP, WHERE THE FUSES WERE CHECKED. A CONTROL UNIT WAS REPLACED AT OWNER'S EXPENSE.DEALERSHIP OFFERED TO REPAIR UNIT FREE IF OWNER LEFET THE DEFECTED PART. *AK
Too few reports in this category for a page of its own — they appear in the full complaint list.
Driver assistance
Reports naming forward-collision avoidance, lane keeping, back-over prevention, cruise control and related electronic driver-assistance systems.
From owner reports, verbatim
CRUISE CONTROL IS LOCATED ON A SMALL STALK NEXT TO LARGER STALK FOR TURN SIGNALS, UPON TURNING, BOTH STALKS ARE MOVED, CAUSING CRUISE CONTROL TO COME ON.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Exterior lighting
Reports naming headlights, tail lights, turn signals and other exterior lighting.
From owner reports, verbatim
HEADLIGHT WIRING HARNESS IS DISINTEGRATING, AND LOOKS IDENTICAL TO PICTURES SENT TO NHTSA BY OTHER OWNERS AND IS A FIRE HAZARD THAT IS UNDETECTABLE UNTIL SHORTS OR FIRES DEVELOP. THE INSULATION IS LITERALLY FALLING APART, AND THIS CREATES GREAT POTENTIAL FOR UNSAFE OPERATION, SHORTCIRCUITS, BREAKDOWN AND IS A POTENTIAL FIRE HAZARD. *TR
Too few reports in this category for a page of its own — they appear in the full complaint list.
Powertrain (other)
Powertrain reports that are not specifically the engine or transmission — driveshafts, axles, transfer cases and differentials.
From owner reports, verbatim
TL* THE CONTACT OWNS A 1997 MERCEDES BENZ E420. THE CONTACT STATED THAT WHILE DRIVING 40 MPH, HE HEARD A LOUD POP NEAR THE FRONT PASSENGER SIDE OF THE VEHICLE. THE CONTACT PULLED THE VEHICLE OVER AND SAW THAT METAL WAS HANGING FROM UNDER THE VEHICLE. THE CONTACT STATED THE VEHICLE WAS ABLE TO BE DRIVEN BUT WAS UNSAFE AND HAD THE VEHICLE TOWED TO HIS HOME. THE VEHICLE WAS NOT TAKEN FOR INSPECTION. NEITHER THE DEALER NOR THE MANUFACTURER WAS NOTIFIED. THE FAILURE MILEAGE WAS 140,000. THE VIN WAS UNAVAILABLE.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Body & structure
Reports naming the vehicle structure, frame, body panels, doors, hood and trim.
From owner reports, verbatim
WHILE DRIVING 65 MPH, THE CONSUMER NOTICED THE STEERING WHEEL VIBRATING HARD. THE CONSUMER LOOKED UNDER VEHICLE AND NOTICED THE FRAME WELL WAS BROKEN. PLEASE PROVIDE FURTHER DETAILS. *JB METAL ON FRAME WELL WAS REPLACED DUE TO FATIGUE. ALSO, FRONT SHOCK ABSORBERS WERE REPLACED. VEHICLE WAS PURCHASED BY CONSUMER IN AN AUCTION. *LA
Too few reports in this category for a page of its own — they appear in the full complaint list.
Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.
Elsewhere on this vehicle
Data sources
- NHTSA Office of Defects Investigation — owner-reported complaints and the components recorded on them
Data on this page last refreshed .