Verdict · NHTSA data
Limited data — recalls on file
NHTSA has just 8 complaints on file for the 1988 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.
8
NHTSA complaints
1
Recalls
1
Investigations
0
Crash-involved
0
Fires reported
2
Injuries
0
Deaths
—
NCAP overall
| Component | Complaints | Share | vs prior year |
|---|---|---|---|
| Engine | 3 | 38% | ▼ down |
| Airbags | 2 | 25% | ▼ down |
| Electrical System | 1 | 13% | — flat |
| Speed Control | 1 | 13% | ▼ down |
| Visibility & Wipers | 1 | 13% | — flat |
1 NHTSA recall campaign on file. Recall repairs are free at franchised dealers.
Defect
DUE TO HEAT EFFECTS, THE THROTTLE BUSHING LOCATED ON THE ACCELERATOR CONTROL CABLE, CAN FATIGUE AND BREAK, CAUSING THE THROTTLE LINKAGE TO SEPARATE.
Consequence
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.
Remedy
REPLACE THE THROTTLE BUSHING WITH A NEW BUSHING MADE FROM MORE HEAT-RESISTANT MATERIALS.
Representative excerpts, cleaned of personal information. These are consumer statements, not verified defects.
“WHILE DRIVING ABOUT 5-10 MPH THE AIR BAG ON THE DRIVER'S SIDE DEPLOYED FOR NO APPARENT REASON. THE DEALER IS AWARE OF THE SITUATION. THE AIR BAG HAS NOT BEEN REPLACED. *AK”
“SPRING ON DAY/NIGHT MECHANISM ON REAR-VIEW MIRROR CRACKED AND PLASTIC BOTTOM FLEW INTO DRIVER'S LAP, CAUSING INJURY. *SKD”
The record is thin — 8 NHTSA complaints — so owner-report data can't strongly confirm reliability either way, though 1 recall should be verified as completed.
Yes — NHTSA lists 1 recall campaign affecting the 1988 Mercedes-Benz 300. Recall repairs are free at franchised dealers; check the VIN at nhtsa.gov/recalls to confirm the work was done.
NHTSA opened one investigation into this model year; all are now closed.
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.