Total Complaints
4 filings
MERCEDES-BENZ 560 · model year
4 NHTSA complaints for this specific cohort.
NHTSA overall rating
Not crash-tested
New Car Assessment Program
The 1991MERCEDES-BENZ560 carries 4 consumer safety complaints in NHTSA's Office of Defects Investigation database for this specific model-year cohort. Within that volume, owners reported 0 crashes, 0 fires, 0 injuries, and 0 fatalities. No NCAP 5-star crash-test rating is available for this model year in the federal database.
Component-level analysis is where model-year complaints become actionable: the top complaint category for the 1991 560 is power train:driveline with 1 filings, followed by steering (1) and structure:body (1). Concentration in one or two component groups is the classic signature of a systemic defect; a flat distribution usually reflects normal aging, warranty complaints, or isolated build-plant variability.
NHTSA currently has 15 investigation files overlapping the 1991 560. Owners comparing this cohort against neighboring years should pair the counters above with the complaint-by-year trend on the parent model page — a spike in a single year often tracks to a platform refresh, a new transmission supplier, or an updated ECU calibration. Use the related-complaint feed below to read raw owner narratives before deciding whether any pattern here affects your specific use case.
Total Complaints
4 filings
Crashes Reported
0 reports
Source
NHTSA ODI
Federal complaints database
At or below the fleet median complaint volume.
| Component | Count |
|---|---|
| POWER TRAIN:DRIVELINE | 1 |
| STEERING | 1 |
| STRUCTURE:BODY | 1 |
| ELECTRICAL SYSTEM:WIRING | 1 |
1991 560 SEC HAS INTERMITTENT ROUGH IDLE DURING ALL OPERATING TEMPERATURES. AFTER BEING DRIVEN WITH A/C ON FOR ABOUT 8 MILES IN TRAFFIC AND PARKED FOR UNDER TWO HOURS IN HOT WEATHER, CAR FIRST REFUSES TO START - A/C SWITCHED OFF. THE CAR STARTS AFTER A FEW ATTEMPTS AND HAS EXTREMELY ROUGH IDLE. START TO DRIVE AND CAR SOON STALLS REFUSING TO START. A FEW MORE ATTEMPTS, CAR STARTS AND GOES TO EXTREMELY ROUGH IDLE CONDITION. CAR DRIVES A SHORT DISTANCE AND DIES. AFTER MANY MORE RESTART ATTEMPTS, CAR STARTS GOES TO EXTREMELY ROUGH IDLE. REVVING THE ENGINE TO ABOUT 3000 RPM FOR ABOUT 30 SECONDS SEEMS TO BRING BACK THE NORMAL ROUGH IDLE WITH BETWEEN 2-4 FOUR REVVING ATTEMPTS AND RESULTING REDUCED COOLANT TEMPERATURE. CAR DRIVES ROUGHLY AND THEN SUDDENLY SMOOTHES OUT. INTERNET INVESTIGATION POINTS TO BIODEGRADABLE WIRING HARNESS. SEEMS TO BE A MAJOR SAFETY PROBLEM. LUCKILY THE 18 WHEELER THAT WAS ABOUT TO CRUSH ME DURING THE LAST STALL EPISODE WAS ABLE TO CHANGE LANES JUST IN TIME. THI
VEHICLE FRONT END PULLS TO THE LEFT WHILE DRIVING.*MR THE PAINT ON THE TOP WINDOW NEEDS TO BE CORRECTED. MOLDING AROUND THE BRAKE LIGHT LOCATED IN THE BACK WINDOW TO BE PLACED CORRECTLY IN ITS GROOVE. THE CLEAR BRA ON THE RIGHT FRONT OVER THE HEADLIGHT IS COMING APART.*TS
VEHICLE FRONT END PULLS TO THE LEFT WHILE DRIVING.*MR THE PAINT ON THE TOP WINDOW NEEDS TO BE CORRECTED. MOLDING AROUND THE BRAKE LIGHT LOCATED IN THE BACK WINDOW TO BE PLACED CORRECTLY IN ITS GROOVE. THE CLEAR BRA ON THE RIGHT FRONT OVER THE HEADLIGHT IS COMING APART.*TS
CONSUMER STATED THE DIFFERENTIAL BRACKET FELL FROM THE BODY OF THE CAR ONTO THE AXLE.*YH *DT
Data as of 2025. Sources: NHTSA Office of Defects Investigation (ODI) complaints database, NHTSA recall campaign API, NHTSA NCAP crash-test ratings, and NHTSA FARS for fatality cross-reference.
Read our methodology — how this data is sourced, computed, and verified.