FaultScore report
Owners have filed 16 complaints about the 2006 Mercedes Benz S500 with NHTSA between 2005 and 2025. The largest single group is the engine & cooling. Across this model's run it ranks 7 of 8 worst.
FaultScore 18/100
Higher is worse. Measured against the other years of the Mercedes Benz S500.
How this is worked out16
Complaints
0
Crashes reported
0
Fires reported
0
Injuries reported
87,042 mi
Median mileage at failure
Half of reported failures happened before this
17%
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 87,042 miles
Median failure at 93,000 miles
Median failure at 60,000 miles
Median failure at 28,650 miles
Median failure at 119,671 miles
Median failure at 118,000 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.
ELECTRICAL SYSTEM
Vehicle stall - engine cut off - on highway at speed (50-55miles/hr) posing driver and passenger safety. No OBD error code or ECU error Similar incidents reported by Mercedes owners S500 model across USA As posted on Mercedes forums.
NHTSA complaint #11684307 — an unverified report by a vehicle owner.
ENGINE
Vehicle stall - engine cut off - on highway at speed (50-55miles/hr) posing driver and passenger safety. No OBD error code or ECU error Similar incidents reported by Mercedes owners S500 model across USA As posted on Mercedes forums.
NHTSA complaint #11684307 — an unverified report by a vehicle owner.
STEERING
Safety issues 1. Engine shuts off while driving. No error codes. Starts again with key and drives fine. 2. Steering locks while driving - maneuvering a turn. Stopped the car. Turn ignition off. Turn ignition on Everything works fine.
NHTSA complaint #11614082 — an unverified report by a vehicle owner.
ENGINE
Safety issues 1. Engine shuts off while driving. No error codes. Starts again with key and drives fine. 2. Steering locks while driving - maneuvering a turn. Stopped the car. Turn ignition off. Turn ignition on Everything works fine.
NHTSA complaint #11614082 — an unverified report by a vehicle owner.
ENGINE
TL* THE CONTACT OWNS A 2006 MERCEDES BENZ S500. THE CONTACT STATED THAT WHILE DRIVING AT 50 MPH, THE ENGINE STALLED. THE VEHICLE WAS TAKEN TO A DEALER WHERE IT WAS DIAGNOSED THAT THE POSITION SENSOR FAILED AND NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 68,085. UPDATED 01/11/2017
NHTSA complaint #10871895 — an unverified report by a vehicle owner.
POWER TRAIN
TL* THE CONTACT OWNS A 2006 MERCEDES-BENZ S500. WHILE DRIVING 20 MPH WITH THE BRAKE PEDAL DEPRESSED, THE VEHICLE JERKED BEFORE COMING TO A HALT. THE FAILURE RECURRED ON NUMEROUS OCCASIONS. THE VEHICLE WAS TAKEN TO A DEALER WHERE IT WAS DIAGNOSED THAT THE TRANSMISSION NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 60,000.
NHTSA complaint #10821033 — an unverified report by a vehicle owner.
SUSPENSION
WHILE DRIVING THE CAR THE FRONT END DROPPED MAKING IT VERY DIFFICULT TO STEER. HAD TO SLOWLY MOVE TO THE RIGHT LANE WHILE TRAFFIC IS GOING 70. THIS COULD HAVE KILLED ME.
NHTSA complaint #10716369 — an unverified report by a vehicle owner.
ENGINE
THIS PROBLEM HAPPEN THREE TIMES IN ABOUT 6 MINUTES IN ONE NIGHT. WHILE DRIVING AT 70 MILES PER HOUR. THE ENGINE CUT OFF, ALMOST BEFORE I KNEW WHAT HAPPEN THE ENGINE STARTED BACK RUNNING. IN LESS THAN A MINUTE IT HAPPEN AGAIN. THE ENGINE CUT OUT THEN STARTED BEFORE I COULD DO ANYTHING. THE THIRD TIME IT CUT OUT COMPLETE AND STAYED OFF. I WAS ABLE TO MOVE THE SIDE OF THE ROAD AND STOP AND RESTART THE CAR. IT WAS VERY SCARY, ALL THE LIGHTS WERE OFF AND I WAS ON A BUSY HIGHWAY AT NIGHT. IT'S HAPPEN BEFORE ABOUT A YEAR AGO. I MENTION IT TO THE DEALER, THEY ACTED AS IF IT WAS NOTHING THEY WERE AWARE OF.
NHTSA complaint #10653075 — an unverified report by a vehicle owner.
SUSPENSION
WENT OUT TO THE CAR TO GO TO THE PHARMACY TO GET MY ASTHMA MEDS AND THE CAR WAS DOWN ON THE GROUND,TOTALLY DEFLATED SHOCKS. START CAR AND RISES TO HEIGHT BUT SINKS WHEN CAR IS OFF, THIS IS A DANGER IF DRIVING ON THE HIGHWAY AT 55 MPH, I HAVE A WIFE AND A YOUNG SON. I FEEL THAT THE DEALERS SHOULD RECALL AND FIX THIS PROBLEM CORRECTLY, AND NOT HAVE PEOPLES LIVES IN DANGER ON THE ROADS OF AMERICA, ANY HELP WOULD GREATLY BE APPRECIATED. THANK YOU , A CAUTIOUS DRIVER.
NHTSA complaint #10562229 — an unverified report by a vehicle owner.
POWER TRAIN
MY TRANSMISSION WOULD NOT SHIFT OUT OF SECOND GEAR. I TURNED IT OFF AND BACK ON AND IT DID NOT CLEAR. I GOT A "PRE-SAFE UNAVAILABLE" MESSAGE. I DID SOME RESEARCH AND LEARNED THIS IS A "TRANSMISSION CONTROL MODULE" FAILURE. IT IS VERY UNSAFE IN THAT THE CAR CANNOT KEEP UP WITH TRAFFIC AND IS A DANGER TO MYSELF AND OTHERS.
NHTSA complaint #10557207 — an unverified report by a vehicle owner.
VEHICLE SPEED CONTROL
MY TRANSMISSION WOULD NOT SHIFT OUT OF SECOND GEAR. I TURNED IT OFF AND BACK ON AND IT DID NOT CLEAR. I GOT A "PRE-SAFE UNAVAILABLE" MESSAGE. I DID SOME RESEARCH AND LEARNED THIS IS A "TRANSMISSION CONTROL MODULE" FAILURE. IT IS VERY UNSAFE IN THAT THE CAR CANNOT KEEP UP WITH TRAFFIC AND IS A DANGER TO MYSELF AND OTHERS.
NHTSA complaint #10557207 — an unverified report by a vehicle owner.
ELECTRICAL SYSTEM
MY TRANSMISSION WOULD NOT SHIFT OUT OF SECOND GEAR. I TURNED IT OFF AND BACK ON AND IT DID NOT CLEAR. I GOT A "PRE-SAFE UNAVAILABLE" MESSAGE. I DID SOME RESEARCH AND LEARNED THIS IS A "TRANSMISSION CONTROL MODULE" FAILURE. IT IS VERY UNSAFE IN THAT THE CAR CANNOT KEEP UP WITH TRAFFIC AND IS A DANGER TO MYSELF AND OTHERS.
NHTSA complaint #10557207 — an unverified report by a vehicle owner.
TIRES
TL* THE CONTACT OWNS A 2006 MERCEDES BENZ S500 WITH YOKOHAMA ADVANCE S4 TIRES, TIRE SIZE P265/40R18. THE CONTACT STATED THAT THE REAR PASSENGER TIRE EXPLODED WHILE DRIVING APPROXIMATELY 65 MPH. THREE MONTHS PRIOR TO THE FAILURE, THE CONTACT REPLACED THE REAR DRIVER SIDE TIRE FOR THE SAME FAILURE. THE CONTACTS ROADSIDE ASSISTANCE INSTALLED THE SPARE TIRE AND THE VEHICLE WAS THEN TAKEN TO A PRIVATE MECHANIC WHO REPLACED THE TIRE WITH ANOTHER BRAND BECAUSE THE ORIGINAL BRAND WAS UNAVAILABLE. THE MANUFACTURER ADVISED THE CONTACT THAT IT WOULD TAKE SIX WEEKS FOR THE TIRE TO ARRIVE. THERE WERE NO RECALLS OR WARRANTIES. THE FAILURE MILEAGE WAS 50,000. THE VIN WAS UNAVAILABLE.
NHTSA complaint #10393765 — an unverified report by a vehicle owner.
ELECTRICAL SYSTEM
THE TELEMATICS DEVICE IN MY 2006 MB S500 SPONTANEOUSLY MALFUNCTIONED. NO KNOWN EVENTS LEAD UP TO THE FAILURE, TOTAL LOSS OF INFORMATION AND SAFETY UPLINK, TOTAL LOSS OF NEW $300 MBRACE SUBSCRIPTION VALUE, AS OF 21 MAR 2011, NOTHING DONE TO CORRECT OTHER THAN CALL TO DEALER. WAS A PRIOR RECALL DONE THAT WOULD HAVE IMPACTED THE VEHICLE TELEMATICS UNIT OR THE ASSOCIATED VEHICLE ELECTRICAL SYSTEM?
NHTSA complaint #10392405 — an unverified report by a vehicle owner.
TIRES
TL*THE CONTACT OWNS A 2006 MERCEDES BENZ CLS 500. THE TIRES ON THE VEHICLE ARE MANUFACTURED BY CONTINENTAL, SIZE 245-40R1893Y DOT CUUYP3HK AND 375-35R1895Y DOT CUBLT3HK. THE VEHICLE WAS TAKEN TO THE DEALER FOR ROUTINE MAINTENANCE AND FOUND A BLISTER ON THE FRONT AND REAR PASSENGER TIRES. THE TIRES WERE REPLACED. THE CURRENT AND FAILURE MILEAGE WAS 7300. *UPDATED 12/12/07 *BF UPDATED 12/12/07
NHTSA complaint #10205379 — an unverified report by a vehicle owner.
POWER TRAIN:AUTOMATIC TRANSMISSION
DT: THE CALLER SAID VEHICLE SEEMED TO SHIFT INTO A LOWER GEAR WHEN DRIVING BETWEEN 30 AND 40 MPH. WHEN THIS HAPPENED VEHICLE BUCKED FORWARD. THE CALLER PULLED OVER AS SOON AS SHE COULD BECAUSE SHE DID NOT KNOW WHAT WAS CAUSING THIS PROBLEM. IT HAPPENED 5 TIMES, TWO TIME IN JUNE, ONCE IN JULY AND TWICE IN AUGUST. THE DEALER SAID NOT TO WORRY ABOUT IT. MANUFACTURER HAS NOT BEEN CONTACTED YET. *AK
NHTSA complaint #10132468 — an unverified report by a vehicle owner.