1991 Mercedes Benz 300: Reliability Data

Source: NHTSA — 32 complaints
32
Total Complaints
AIR BAGS:FRONTAL
Top Issue
3
Crash Reports

What Fails?

Most reported component issues from NHTSA complaints.

AIR BAGS:FRONTAL
4
ENGINE AND ENGINE COOLING:ENGINE
3
VEHICLE SPEED CONTROL
2
ELECTRICAL SYSTEM
2
SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:CONTROL UNIT/MODULE
2
POWER TRAIN:DRIVELINE:CONSTANT VELOCITY JOINT
2
POWER TRAIN:DRIVELINE:DRIVESHAFT
2
POWER TRAIN
2
STEERING:LINKAGES:TIE ROD ASSEMBLY
2
STEERING:HYDRAULIC POWER ASSIST:HOSE, PIPING, AND CONNECTIONS
1

Severity Assessment

3
Crashes
3
Fires
4
Injuries
0
Deaths

Sample Complaint Reports

"DISTRIBUTOR ROTOR/BRACKET FAILED, CAUSING VEHICLE TO STALL. *DSH"
"CLAMP HOLDING POWER STEERING HOSE TOO BIG TO HOLD HOSE IN PLACE WHEN TIGHTENED ALL THE WAY, CAUSING FLUID TO LEAK OUT OF SYSTEM. *DSH"
"DURING A FRONTAL IMPACT ACCIDENT AT 35 MPH, THE DRIVER SIDE AIR BAG DID NOT DEPLOY. *AK"

Source: NHTSA ODI Complaints Database. Names and identifying details omitted.

Data source: View this vehicle on NHTSA.gov | NHTSA ODI Complaints Database. Public domain.

Methodology: Complaint counts and mileage distributions are computed directly from consumer-reported NHTSA complaints. This data represents reported issues, not failure rates — vehicles without complaints are not represented. Full methodology.

Data through: 2026-03-28