Verdict · NHTSA data
Limited data — recalls on file
NHTSA has just 25 complaints on file for the 1992 Mercedes-Benz 300 — too few to judge reliability from owner reports alone — but one recall campaign applies to this year, so any used example should have its VIN checked for completed recall work.
25
NHTSA complaints
1
Recalls
0
Investigations
2
Crash-involved
2
Fires reported
0
Injuries
0
Deaths
—
NCAP overall
| Component | Complaints | Share | vs prior year |
|---|---|---|---|
| Electrical System | 5 | 20% | ▲ up |
| Engine | 5 | 20% | — flat |
| Speed Control | 3 | 12% | ▲ up |
| Brakes | 3 | 12% | — flat |
| Fuel System | 2 | 8% | ▲ up |
| Visibility & Wipers | 2 | 8% | ▲ up |
| Other | 1 | 4% | — flat |
| Airbags | 1 | 4% | ▼ down |
| Suspension | 1 | 4% | — flat |
| Tires & Wheels | 1 | 4% | — flat |
| Transmission | 1 | 4% | ▼ down |
1 NHTSA recall campaign on file. Recall repairs are free at franchised dealers.
Defect
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.
Consequence
PUMP OPERATION IN THE ABSENCE OF FLUID CAN CAUSE THE PUMP TO OVERHEAT AND CAUSE A VEHICLE FIRE.
Remedy
DEALERS WILL REPLACE THE HEADLAMP WASHER PUMP ON THESE VEHICLES.
Representative excerpts, cleaned of personal information. These are consumer statements, not verified defects.
“I WAS DRIVING DOWN THE STREET WHEN SMOKE BEGAN TO COME FROM BENEATH THE HOOD AND INTO THE VEHICLE. I PULLED OVER AND OPENED THE HOOD AND SAW FLAMES COMING OUT FROM UNDERNEATH THE BATTERY COMPARTMENT. AFTER EXTINGUISHING THE FIRE THE CAR NO LONGER STARTED. UPON INSPECTION ALL OF THE ELECTRICAL…”
“THIS IS THE SECOND 1992 300SD THAT I KNOW OF THAT HAS HAD THE SAME FAILURE, IN THE RELATED CASE MBZ REPLACED THE ENTIRE ENGINE DUE TO FAILED HEAD GASKET AND CRANKSHAFT BEING TOO SOFT, OR NOT STRONG ENOUGH, BUT THEY REFUSE TO HELP US, HE OTHER CASE WAS AN ACQUAINTANCE FROM CONNETICUT”
“WHILE DRIVING 50 MPH THE ACCELERATOR PEDAL WENT DOWN TO THE FLOOR AND THE VEHICLE SUDDENLY DECELERATED. A MECHANIC AT AN AUTO REPAIR SHOP DETERMINED THE ACCELERATOR CABLE BROKE. AFTER THIS INCIDENT THE CONSUMER RECEIVED A NOTICE FROM THE MANUFACTURER ABOUT THE ACCELERATOR CABLE, STATING COULD CAUSE…”
“1) VEHICLE WILL LOSE POWER WHILE TRYING TO ACCELERATE. 2) VEHICLE ALSO IS DIFFICULT IN STARTING W/TOWING TO DEALER WHICH CAN'T DUPLICATE FAILURE. *AK”
The record is thin — 25 NHTSA complaints — so owner-report data can't strongly confirm reliability either way, though 1 recall should be verified as completed.
According to NHTSA complaint data, the leading problem areas are electrical system (5 complaints), engine (5 complaints), speed control (3 complaints).
Yes — NHTSA lists 1 recall campaign affecting the 1992 Mercedes-Benz 300. Recall repairs are free at franchised dealers; check the VIN at nhtsa.gov/recalls to confirm the work was done.
Based on complaint rates and open investigations, the 300 years to avoid are 1993, 1987, 1991. The cleanest record among 300 years belongs to 1972.
Based on NHTSA ODI data through June 2026. Complaints are consumer-reported and unverified. Updated July 5, 2026.
Compiled by Sharon Ben-Moshe, Founder.