The 1991 Mercedes-Benz 300 has 2 NHTSA recall campaigns affecting an estimated 156,874 vehicles. Recall repairs are always free at any authorized dealer. Owners have filed 32 complaints with NHTSA, most often about the air bags. Last updated July 5, 2026.
IF ONE OF THE HEADLAMP WIPER ARMS BECOMES MISALIGNED, THE WIPER BALDE CAN LODGE IN THE GROOVE UNDER THE HEADLAMP. IF THE WASHERS ARE ACTIVATED WITH THE WIPER BLADE IN THE MISALIGNED AND LODGED POSITION, THE WASHER PUMP WILL RUN CONTINUOUSLY EXPELLING ALL AVAILABLE FLUID.
PUMP OPERATION IN THE ABSENCE OF FLUID CAN CAUSE THE PUMP TO OVERHEAT AND CAUSE A VEHICLE FIRE.
DEALERS WILL REPLACE THE HEADLAMP WASHER PUMP ON THESE VEHICLES.
DUE TO HEAT EFFECTS, THE THROTTLE BUSHING LOCATED ON THE ACCELERATOR CONTROL CABLE, CAN FATIGUE AND BREAK, CAUSING THE THROTTLE LINKAGE TO SEPARATE.
IF THE THROTTLE LINKAGE SEPARATES, THE ENGINE WILL RETURNTO IDLE SPEED, AND REMAIN AT IDLE, WITH NO ACCELERATION ABILITY. LOSS OF ENGINESPEED WITHOUT PRIOR WARNING COULD LEAD TO LOSS OF VEHICLE CONTROL AND ANACCIDENT.
REPLACE THE THROTTLE BUSHING WITH A NEW BUSHING MADE FROM MORE HEAT-RESISTANT MATERIALS.
Verbatim reports filed with NHTSA, lightly edited for readability and with personal information removed.
“My 1991 300sl benz has had to have the engine wiring harness replaced per mb dealer because it's going bad and decomposing causing a potential fire problem. This after a no start problem and a month in the shop. And they not being able to find the cause. Now , after replacing the harness , they…”
“The drive train on the consumers 1991 mercedes benz 300 locked up. *jb the problem had been totally isolated to the control unit. The total lock up occurred intermittently or the problem may be elsewhere caused by a certain set of conditions. *sc”
“While traveling at approximately 65 mph in 1991, mercedes benz, 300d 2.5 turbo, right rear goodyear road handler voyager lx tire size p195/60r15, dot pjunyblr319 experienced a blowout in sidewall of tire. There was approximately 10,000 miles on the tires, and they were not original equipment on…”
“When the vehicle is proceeding forward from a full stop and is turning to either the right or left there is a serious vibration and shuttering problem. The vehicle has had many front-end alignments and has had the transfer case replaced twice, the problem still persists. *cj”
“When the vehicle is proceeding forward from a full stop and is turning to either the right or left there is a serious vibration and shuttering problem. The vehicle has had many front-end alignments and has had the transfer case replaced twice, the problem still persists. *cj”
“Motor mounts were replaced. *cj”
“Motor mounts were replaced. *cj”
“The left front abs sensor was replaced. *cj”
Recall, complaint, and investigation records from official NHTSA datasets (FLAT_RCL, FLAT_CMPL, FLAT_INV), synced weekly. Counts reflect NHTSA records for the 1991 Mercedes-Benz 300 as of July 5, 2026. Complaint narratives are consumer-submitted and unverified. This page contains ads and affiliate links. Full methodology.