FaultScore report
Owners have filed 19 complaints about the 2005 Mercedes Benz S500 with NHTSA between 2007 and 2019. The largest single group is the electrical system. Across this model's run it ranks 5 of 8 worst.
FaultScore 25/100
Higher is worse. Measured against the other years of the Mercedes Benz S500.
How this is worked out19
Complaints
0
Crashes reported
0
Fires reported
0
Injuries reported
55,000 mi
Median mileage at failure
Half of reported failures happened before this
32%
Failed under 36,000 miles
Inside a typical bumper-to-bumper warranty
The letter says how bad. This says what kind — whether this year drew an unusual number of complaints, unusually dangerous ones, or failures that arrived unusually early.
Click any bar to open that year's report.
Every complaint is filed against a part. Follow any row for the complaints about that part alone.
Median failure at 99,000 miles
Median failure at 119,153 miles
Median failure at 3,592 miles
Median failure at 29,296 miles
Median failure at 85,000 miles
Median failure at 55,000 miles
Median failure at 98,000 miles
Median failure at 3,592 miles
Odometer readings owners gave when they filed. About half of all complaints include one.
A spike years after the car went on sale usually means a part wearing out on schedule across the whole fleet — the kind of pattern no single owner can see from inside their own car.
In the owners' own words, exactly as filed with NHTSA.
UNKNOWN OR OTHER
WHILE DRIVING ON THE HIGHWAY THE INSTRUMENT PANEL WENT BLACK WE WERE UNABLE TO SEE OUR SPEED MILEAGE GAS GAUGE ODOMETER . IT WENT OFF AND ON FOR A PERIOD OF TIME . UNTIL IT WAS TO DANGEROUS TO CONTINUE TO DRIVE.
NHTSA complaint #11184709 — an unverified report by a vehicle owner.
ELECTRICAL SYSTEM
ELECTRONIC DASH INSTRUMENT CLUSTER WENT BLACK AND THE SPEEDOMETER COULD NOT BE SEEN AND ALL OTHER DRIVER INFORMATION ON THE REMAINING GAUGES WERE ALSO NOT VISIBLE. THE DOOR LOCKS WOULD NOT OPERATE ,THE TRUNK WOULD NOT OPEN AND THE SEANT WOULD NOT MOVE IN ANY DIRECTION. I WAS DRIVING THE 118 FREEWAY IN CA . I WAS DOING 65 MPH WHEN THE INCIDENT OCCURED. I HAD TO GET OFF THE FREEWAY AND DRIVE HOME ON SURFACE STREETS. WAY TOO DANGEROUS TO CONTINUE ON THE FREEWAY. THE CAR HAS APPROXIMATELY 99000 MILES AND HAD NO OTHER PROBLEMS.
NHTSA complaint #11172586 — an unverified report by a vehicle owner.
ELECTRICAL SYSTEM
WHILE DRIVING AT APPROXIMATELY 45 MPH MY INSTRUMENT PANEL WENT BLACK. I COULD NOT DETERMINE MY SPEED, TIME OF DAY FUEL USAGE, MILES TRAVELED, OR SIGNAL LIGHTS. I DID NOT BUY THE VEHICLE FROM A MERCEDES DEALER. I CALLED A DEALER ABOUT A RECALL. HE STATED THAT THERE WAS A RECALL BUT IT HAD EXPIRED. I UNDERSTAND A RECALL EXPIRING, BUT IT SEEMS THAT MERCEDES BENZ WOULD SUPPORT THEIR PRODUCT NO MATTER WHEN THE DEFECT OCCURRED. IT IS A SAFETY ISSUE THAT COULD HAVE CAUSED RUNNING OUT OF FUEL WITHOUT BEING ABLE TO DETECT IT AND NO WAY OF BEING AWARE OF THE SPEED OF THE VEHICLE. THE SIGNAL LIGHTS DON'T FUNCTION ON THE CLUSTER. I BELIEVE IT WAS A DEFECT THAT MERCEDES BENZ WAS AWARE OF AND THAT THEY SHOULD REPLACE THE INSTRUMENT CLUSTER AT NO COST TO ME. THE COST TO REPLACE THE INSTRUMENT CLUSTER IS OUTRAGEOUS FOR A COMPONENT THAT IS OBVIOUSLY DEFECTIVE. OWNERS SHOULD NOT BE RESPONSIBLE FOR DEFECTIVE COMPONENTS THAT ARE OR HAVE BEEN A PART OF A RECALL.
NHTSA complaint #10929816 — an unverified report by a vehicle owner.
ELECTRICAL SYSTEM
BLOWER MOTOR STOPPED WORKING AND REMAINED INTERMITTENT THROUGH JULY 2015. MERCEDEZ BENZ OF ST. LOUIS REPLACED BLOWER MOTOR AND REGULATOR/CONTROLLER. WITHIN DAYS OF GETTING CAR BACK THE BLOWER CONTINUED TO BE INTERMITTENT. IT WOULD WORK FOR DAYS OR WEEKS AND THEN STOP FOR 1-3 DAYS. I TOOK IT BACK TO THE DEALER WHEN IT WAS NOT WORKING AND THEY THOUGHT IT MIGHT BE THE SWITCHES IN THE DASH. STILL UNRESOLVED. IN ADDITION THE WIPERS WOULD STOP WORKING, THE RADIO WOULD STOP WORKING AND THE PASSENGER SEAT AIRBAG SENSOR WAS INTERMITTENT.
NHTSA complaint #10767372 — an unverified report by a vehicle owner.
ELECTRICAL SYSTEM
TL* THE CONTACT OWNS A 2005 MERCEDES BENZ S500. WHILE DRIVING 35 MPH, THE INSTRUMENT PANEL SEIZED WITHOUT WARNING. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE THE CONTACT WAS INSTRUCTED TO TAKE THE VEHICLE TO THE DEALER. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 52,000.
NHTSA complaint #10725782 — an unverified report by a vehicle owner.
ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
TL* THE CONTACT OWNS A 2005 MERCEDES BENZ S500. WHILE DRIVING AT VARIOUS SPEEDS, THE INSTRUMENT PANEL FAILED AND CAUSED ALL THE GAUGES TO BECOME INOPERABLE. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 139,995.
NHTSA complaint #10725540 — an unverified report by a vehicle owner.
STRUCTURE:BODY
TL*THE CONTACT OWNS A 2005 MERCEDES S500. THE CONTACT STATED THAT THE TRUNK LID FAILED TO REMAINED OPEN AND ALMOST FELL ON THE PASSENGER HEAD. THE VEHICLE WAS TAKEN TO THE DEALER FOR INSPECTION. THE TECHNICIAN DIAGNOSED THAT THE TRUNK STRUTS FAILED AND NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 98,000.
NHTSA complaint #10679088 — an unverified report by a vehicle owner.
POWER TRAIN
TOOK MY CAR TO MERCEDES-BENZ OF PEMBROKE, PINES FLORIDA I TOOK MY CAR TO THE DEALER LAST MO MERCEDES-BENZ OF PEMBROKE PINES FLORIDA FOR THEM TO CHANGE THE OIL AND FILTER IN TRANSMISSION. SO, MONDAY I TOOK IT BACK IN AND TOLD THEM TO CHECK MY KEY DOOR LOCKS, BECAUSE THE DOOR WOULD OPEN. "NO KEY" BUT WOULD NOT LOCK BY HOLDING THE HANDLE. ALSO, TO CHECK THE TRANSMISSION WHICH WAS HARSH WHEN DOWN SHIFTING WHEN IT WAS COLD. I GOT A CALL THE NEXT DAY TELLING ME I NEEDED A NEW TRANSMISSION. I SAID I ONLY HAVE 52,000 MILES ON THE CAR AND I DON'T USE IT THAT MUCH. THE CAR COST $93,000.00 THIS SHOULD NOT BE. SOMETHING IS WRONG AT THAT DEALER, AND THEY WON'T LISTEN TO ME, THE SERVICE MGR WON'T EVEN RETURN MY CALL LONG STORY SHORT, BUT THE BILL WAS $9,300.00 I THINK I GOT RIPPED OFF. THANK YOU
NHTSA complaint #10455200 — an unverified report by a vehicle owner.
LATCHES/LOCKS/LINKAGES:DOORS:LATCH
TOOK MY CAR TO MERCEDES-BENZ OF PEMBROKE, PINES FLORIDA I TOOK MY CAR TO THE DEALER LAST MO MERCEDES-BENZ OF PEMBROKE PINES FLORIDA FOR THEM TO CHANGE THE OIL AND FILTER IN TRANSMISSION. SO, MONDAY I TOOK IT BACK IN AND TOLD THEM TO CHECK MY KEY DOOR LOCKS, BECAUSE THE DOOR WOULD OPEN. "NO KEY" BUT WOULD NOT LOCK BY HOLDING THE HANDLE. ALSO, TO CHECK THE TRANSMISSION WHICH WAS HARSH WHEN DOWN SHIFTING WHEN IT WAS COLD. I GOT A CALL THE NEXT DAY TELLING ME I NEEDED A NEW TRANSMISSION. I SAID I ONLY HAVE 52,000 MILES ON THE CAR AND I DON'T USE IT THAT MUCH. THE CAR COST $93,000.00 THIS SHOULD NOT BE. SOMETHING IS WRONG AT THAT DEALER, AND THEY WON'T LISTEN TO ME, THE SERVICE MGR WON'T EVEN RETURN MY CALL LONG STORY SHORT, BUT THE BILL WAS $9,300.00 I THINK I GOT RIPPED OFF. THANK YOU
NHTSA complaint #10455200 — an unverified report by a vehicle owner.
ELECTRICAL SYSTEM
TOOK MY CAR TO MERCEDES-BENZ OF PEMBROKE, PINES FLORIDA I TOOK MY CAR TO THE DEALER LAST MO MERCEDES-BENZ OF PEMBROKE PINES FLORIDA FOR THEM TO CHANGE THE OIL AND FILTER IN TRANSMISSION. SO, MONDAY I TOOK IT BACK IN AND TOLD THEM TO CHECK MY KEY DOOR LOCKS, BECAUSE THE DOOR WOULD OPEN. "NO KEY" BUT WOULD NOT LOCK BY HOLDING THE HANDLE. ALSO, TO CHECK THE TRANSMISSION WHICH WAS HARSH WHEN DOWN SHIFTING WHEN IT WAS COLD. I GOT A CALL THE NEXT DAY TELLING ME I NEEDED A NEW TRANSMISSION. I SAID I ONLY HAVE 52,000 MILES ON THE CAR AND I DON'T USE IT THAT MUCH. THE CAR COST $93,000.00 THIS SHOULD NOT BE. SOMETHING IS WRONG AT THAT DEALER, AND THEY WON'T LISTEN TO ME, THE SERVICE MGR WON'T EVEN RETURN MY CALL LONG STORY SHORT, BUT THE BILL WAS $9,300.00 I THINK I GOT RIPPED OFF. THANK YOU
NHTSA complaint #10455200 — an unverified report by a vehicle owner.
EXTERIOR LIGHTING
POLYCARBONATE HEADLIGHT LENSES, RECENTLY SUBSTITUTED FOR GLASS BY MANUFACTURER, BECOME BLACKENED AND OCCLUDED OVER TIME, RENDERING HEADLAMPS INCREASINGLY INEFFECTUAL AND MAKING NIGHT TIME DRIVING DANGEROUS. THIS MATERIAL IS UNSUITED FOR THE PURPOSE OF SHIELDING THE HEADLAMPS AND SHOULD BE REPLACED IN ALL INSTANCES BY MATERIALS THAT DO NOT DEGRADE DURING THEIR INTENDED USE.
NHTSA complaint #10435164 — an unverified report by a vehicle owner.
POWER TRAIN:AUTOMATIC TRANSMISSION
TL*THE CONTACT OWNS A 2005 MERCEDES BENZ S-500. THE CONTACT STATED THAT THE ENGINE AND SERVICE LIGHT ILLUMINATED AND THERE WAS A LOSS OF BRAKES. THE FAILURE HAS OCCURRED 16 TIMES. THE DEALER WAS UNABLE TO REPAIR THE VEHICLE. THE CONTACT WOULD NOT PROVIDE DETAILED INFORMATION ABOUT THE FAILURES. THE FAILURE MILEAGE WAS 3,591 AND CURRENT MILEAGE WAS 80,000. UPDATE 06/10/08 *BF THE SHIFTER WOULD GET STUCK IN PARK, THE BRAKE WEAR LIGHT ILLUMININATED. THE DEALER REPLACED THE REAR PADS AND ROTORS, THE LEFT RERAR MARKED LIGHT WAS REPLACED, THE TRUNK ASSIST DID NOT OPEN THE TRUNK ALL THE WAY, THE MICRO SWITCH FOR THE DOOR LOCK ACTUATOR WAS FAULTY, THE TURN SIGNAL LIGHT WAS INOPERATIVE, THE VOLTAGE REGULATOR WAS REPLACED, THE ABS LIGHT ILLUMINATED, THE CONSUMER COMPLAINED OF NO HEAT IN THE VEHICLE. THE DEALER REPLACED A FAULTY BLOWER MOTOR. UPDATED 06/09/08
NHTSA complaint #10228778 — an unverified report by a vehicle owner.
EXTERIOR LIGHTING
TL*THE CONTACT OWNS A 2005 MERCEDES BENZ S-500. THE CONTACT STATED THAT THE ENGINE AND SERVICE LIGHT ILLUMINATED AND THERE WAS A LOSS OF BRAKES. THE FAILURE HAS OCCURRED 16 TIMES. THE DEALER WAS UNABLE TO REPAIR THE VEHICLE. THE CONTACT WOULD NOT PROVIDE DETAILED INFORMATION ABOUT THE FAILURES. THE FAILURE MILEAGE WAS 3,591 AND CURRENT MILEAGE WAS 80,000. UPDATE 06/10/08 *BF THE SHIFTER WOULD GET STUCK IN PARK, THE BRAKE WEAR LIGHT ILLUMININATED. THE DEALER REPLACED THE REAR PADS AND ROTORS, THE LEFT RERAR MARKED LIGHT WAS REPLACED, THE TRUNK ASSIST DID NOT OPEN THE TRUNK ALL THE WAY, THE MICRO SWITCH FOR THE DOOR LOCK ACTUATOR WAS FAULTY, THE TURN SIGNAL LIGHT WAS INOPERATIVE, THE VOLTAGE REGULATOR WAS REPLACED, THE ABS LIGHT ILLUMINATED, THE CONSUMER COMPLAINED OF NO HEAT IN THE VEHICLE. THE DEALER REPLACED A FAULTY BLOWER MOTOR. UPDATED 06/09/08
NHTSA complaint #10228778 — an unverified report by a vehicle owner.
ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
TL*THE CONTACT OWNS A 2005 MERCEDES BENZ S-500. THE CONTACT STATED THAT THE ENGINE AND SERVICE LIGHT ILLUMINATED AND THERE WAS A LOSS OF BRAKES. THE FAILURE HAS OCCURRED 16 TIMES. THE DEALER WAS UNABLE TO REPAIR THE VEHICLE. THE CONTACT WOULD NOT PROVIDE DETAILED INFORMATION ABOUT THE FAILURES. THE FAILURE MILEAGE WAS 3,591 AND CURRENT MILEAGE WAS 80,000. UPDATE 06/10/08 *BF THE SHIFTER WOULD GET STUCK IN PARK, THE BRAKE WEAR LIGHT ILLUMININATED. THE DEALER REPLACED THE REAR PADS AND ROTORS, THE LEFT RERAR MARKED LIGHT WAS REPLACED, THE TRUNK ASSIST DID NOT OPEN THE TRUNK ALL THE WAY, THE MICRO SWITCH FOR THE DOOR LOCK ACTUATOR WAS FAULTY, THE TURN SIGNAL LIGHT WAS INOPERATIVE, THE VOLTAGE REGULATOR WAS REPLACED, THE ABS LIGHT ILLUMINATED, THE CONSUMER COMPLAINED OF NO HEAT IN THE VEHICLE. THE DEALER REPLACED A FAULTY BLOWER MOTOR. UPDATED 06/09/08
NHTSA complaint #10228778 — an unverified report by a vehicle owner.
SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:ABS WARNING LIGHT
TL*THE CONTACT OWNS A 2005 MERCEDES BENZ S-500. THE CONTACT STATED THAT THE ENGINE AND SERVICE LIGHT ILLUMINATED AND THERE WAS A LOSS OF BRAKES. THE FAILURE HAS OCCURRED 16 TIMES. THE DEALER WAS UNABLE TO REPAIR THE VEHICLE. THE CONTACT WOULD NOT PROVIDE DETAILED INFORMATION ABOUT THE FAILURES. THE FAILURE MILEAGE WAS 3,591 AND CURRENT MILEAGE WAS 80,000. UPDATE 06/10/08 *BF THE SHIFTER WOULD GET STUCK IN PARK, THE BRAKE WEAR LIGHT ILLUMININATED. THE DEALER REPLACED THE REAR PADS AND ROTORS, THE LEFT RERAR MARKED LIGHT WAS REPLACED, THE TRUNK ASSIST DID NOT OPEN THE TRUNK ALL THE WAY, THE MICRO SWITCH FOR THE DOOR LOCK ACTUATOR WAS FAULTY, THE TURN SIGNAL LIGHT WAS INOPERATIVE, THE VOLTAGE REGULATOR WAS REPLACED, THE ABS LIGHT ILLUMINATED, THE CONSUMER COMPLAINED OF NO HEAT IN THE VEHICLE. THE DEALER REPLACED A FAULTY BLOWER MOTOR. UPDATED 06/09/08
NHTSA complaint #10228778 — an unverified report by a vehicle owner.
ELECTRICAL SYSTEM
TL*THE CONTACT OWNS A 2005 MERCEDES BENZ S-500. THE CONTACT STATED THAT THE ENGINE AND SERVICE LIGHT ILLUMINATED AND THERE WAS A LOSS OF BRAKES. THE FAILURE HAS OCCURRED 16 TIMES. THE DEALER WAS UNABLE TO REPAIR THE VEHICLE. THE CONTACT WOULD NOT PROVIDE DETAILED INFORMATION ABOUT THE FAILURES. THE FAILURE MILEAGE WAS 3,591 AND CURRENT MILEAGE WAS 80,000. UPDATE 06/10/08 *BF THE SHIFTER WOULD GET STUCK IN PARK, THE BRAKE WEAR LIGHT ILLUMININATED. THE DEALER REPLACED THE REAR PADS AND ROTORS, THE LEFT RERAR MARKED LIGHT WAS REPLACED, THE TRUNK ASSIST DID NOT OPEN THE TRUNK ALL THE WAY, THE MICRO SWITCH FOR THE DOOR LOCK ACTUATOR WAS FAULTY, THE TURN SIGNAL LIGHT WAS INOPERATIVE, THE VOLTAGE REGULATOR WAS REPLACED, THE ABS LIGHT ILLUMINATED, THE CONSUMER COMPLAINED OF NO HEAT IN THE VEHICLE. THE DEALER REPLACED A FAULTY BLOWER MOTOR. UPDATED 06/09/08
NHTSA complaint #10228778 — an unverified report by a vehicle owner.
SERVICE BRAKES, HYDRAULIC
TL*THE CONTACT OWNS A 2005 MERCEDES BENZ S-500. THE CONTACT STATED THAT THE ENGINE AND SERVICE LIGHT ILLUMINATED AND THERE WAS A LOSS OF BRAKES. THE FAILURE HAS OCCURRED 16 TIMES. THE DEALER WAS UNABLE TO REPAIR THE VEHICLE. THE CONTACT WOULD NOT PROVIDE DETAILED INFORMATION ABOUT THE FAILURES. THE FAILURE MILEAGE WAS 3,591 AND CURRENT MILEAGE WAS 80,000. UPDATE 06/10/08 *BF THE SHIFTER WOULD GET STUCK IN PARK, THE BRAKE WEAR LIGHT ILLUMININATED. THE DEALER REPLACED THE REAR PADS AND ROTORS, THE LEFT RERAR MARKED LIGHT WAS REPLACED, THE TRUNK ASSIST DID NOT OPEN THE TRUNK ALL THE WAY, THE MICRO SWITCH FOR THE DOOR LOCK ACTUATOR WAS FAULTY, THE TURN SIGNAL LIGHT WAS INOPERATIVE, THE VOLTAGE REGULATOR WAS REPLACED, THE ABS LIGHT ILLUMINATED, THE CONSUMER COMPLAINED OF NO HEAT IN THE VEHICLE. THE DEALER REPLACED A FAULTY BLOWER MOTOR. UPDATED 06/09/08
NHTSA complaint #10228778 — an unverified report by a vehicle owner.
INTERIOR LIGHTING
TL*THE CONTACT OWNS A 2005 MERCEDES BENZ S500. WHILE DRIVING 65 MPH, THE INSTRUMENT PANEL LIGHTS WENT OUT. IN ADDITION, THE TURN SIGNALS WOULD NOT ILLUMINATE. SHE TOOK THE VEHICLE TO THE DEALER AND THEY REPLACED THE FUSE. THE INSTRUMENT PANEL LIGHT WOULD ILLUMINATE INTERMITTENTLY. THE DEALER STATED THAT THERE IS A RECALL FOR THE INTERIOR LIGHTING (NHTSA CAMPAIGN ID # 06V028000) HOWEVER, HER VIN WAS NOT INCLUDED. THE CURRENT AND FAILURE MILEAGES WERE 140,000.
NHTSA complaint #10205241 — an unverified report by a vehicle owner.
EXTERIOR LIGHTING:TURN SIGNAL
TL*THE CONTACT OWNS A 2005 MERCEDES BENZ S500. WHILE DRIVING 65 MPH, THE INSTRUMENT PANEL LIGHTS WENT OUT. IN ADDITION, THE TURN SIGNALS WOULD NOT ILLUMINATE. SHE TOOK THE VEHICLE TO THE DEALER AND THEY REPLACED THE FUSE. THE INSTRUMENT PANEL LIGHT WOULD ILLUMINATE INTERMITTENTLY. THE DEALER STATED THAT THERE IS A RECALL FOR THE INTERIOR LIGHTING (NHTSA CAMPAIGN ID # 06V028000) HOWEVER, HER VIN WAS NOT INCLUDED. THE CURRENT AND FAILURE MILEAGES WERE 140,000.
NHTSA complaint #10205241 — an unverified report by a vehicle owner.