Total Complaints
6 filings
MERCEDES-BENZ 300 · model year
6 NHTSA complaints. A VIN lookup is required to determine whether a specific vehicle has an unrepaired recall.
NHTSA overall rating
Not crash-tested
New Car Assessment Program
The 1999MERCEDES-BENZ300 carries 6 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.
The most frequently selected component label in reports for the 1999 300 is electrical system with 2 filings, followed by engine and engine cooling:cooling system:hoses/lines/piping/fittings (1) and power train:automatic transmission (1). Complaint categories reflect owner reports and intake categorization; they do not establish a defect pattern or cause.
NHTSA currently has 15 investigation files overlapping the 1999 300. Owners comparing this cohort against neighboring years should read the complaint-by-year trend as report volume, not a causal diagnosis. Use the related-complaint feed and the official recall lookup when researching a specific vehicle.
Total Complaints
6 filings
Crashes Reported
0 reports
Source
NHTSA ODI
Federal complaints database
At or below the fleet median complaint volume.
| Component | Count |
|---|---|
| ELECTRICAL SYSTEM | 2 |
| ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS | 1 |
| POWER TRAIN:AUTOMATIC TRANSMISSION | 1 |
| AIR BAGS:FRONTAL:SENSOR/CONTROL MODULE | 1 |
| FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP | 1 |
TL* THE CONTACT OWNS A 1999 MERCEDES BENZ 300. THE CONTACT STATED THAT HE ATTEMPTED TO START THE VEHICLE BUT THE ENGINE WOULD NOT START. THE CONTACT EXITED THE VEHICLE AND TRIED TO LOCK THE DOORS BUT NOTICED THAT THE KEY WAS NOT WORKING. THE CONTACT USED THE SPARE KEY AND DROVE THE VEHICLE TO THE DEALER WHERE THEY STATED THAT THE MAIN KEY NEEDED TO BE REPLACED. THE KEY WAS REPLACED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 74,000.
Mileage: 74,000
ON MAY 26, 2006, MY MERCEDES BENZ 1999 300D LOST ALL POWER DURING ROUTINE OPERATION. THE CAR STALLED WHILE IN MOTION IN REGULAR TRAFFIC, AND WAS REQUIRED TO BE TOWED TO A MERCEDES BENZ DEALERSHIP. I WAS NOTIFIED THAT THE REASON FOR THE FAILURE WAS A DEFECTIVE CRANKSHAFT POSITION SENSOR. PART NUMBER 003-153-74-28. THE PART WAS REPLACED. WHEN THE CAR WAS RETURNED, IT WAS DRIVEN NO MORE THAN 12 MILES WHEN THE EXACT SAME CONDITION RE-OCCURRED WHILE THE CAR WAS IN MOTION IN TRAFFIC. THE CAR WAS TOWED AGAIN AND REPAIRED ON JUNE 2, 2006 AT A MERCEDES BENZ DEALERSHIP, AND THIS TIME THE REASON GIVEN FOR THE FAILURE WAS A BROKEN PRE-FILTER AND MAIN FUEL FILTER. PARTS NUMBER 601-092-01-05, 601-090-16-52, AND 601 997-01-48. PLEASE INVESTIGATE THIS MATTER PROMPTLY, AS THERE APPEARS TO BE A CONDITION WHICH CAN CAUSE THE LOSS OF ALL POWER WHILE THE CAR IS IN MOTION. *NM
Mileage: 72,791
CONSUMER STATED THE TRANSMISSION FAILED.*JB *TS
WITHOUT WARNING THE REAR BRAKE LIGHTS FAILED TO ILLUMINATE DUE TO A FAULTY BASE CIRCUIT. *JB *TS
THE AIR BAG SENSOR LIGHT ILLUMINATED ON THE CONSOLE, CONSUMER CONTACTED MERCEDES AND THEY INFORMED HIM THAT AN AIR BAG SENSOR WAS DEFECTIVE. PLEASE DESCRIBE DETAILS.*JB *TS
Mileage: 94,246
ENGINE FUEL LINE LEAKING, CAUSING FUEL TO FUME INTO ENGINE COMPARTMENT WHICH MAY RESULT IN A FIRE. DEALER CANNOT RESOLVE THE PROBLEM. *AK *ML
Data vintage: August 2026. 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.
Every figure on PlainCars is rendered directly from NHTSA complaint and safety data, no number is typed in by an editor. This year-specific record is rendered from NHTSA ODI, recall, and NCAP rows for the 1999 MERCEDES-BENZ 300; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.
Read our methodology - how this data is sourced, computed, and verified.