Total Complaints
2 filings
MERCEDES-BENZ SLK250 · model year
2 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 2014MERCEDES-BENZSLK250 carries 2 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 2014 SLK250 is engine with 1 filings, followed by structure:body (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 2014 SLK250. 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
2 filings
Crashes Reported
0 reports
Source
NHTSA ODI
Federal complaints database
At or below the fleet median complaint volume.
| Component | Count |
|---|---|
| ENGINE | 1 |
| STRUCTURE:BODY | 1 |
MARS RED PAINT FAILURE-
THERE IS A PROBLEM WITH THE AIR TO AIR INTER-COOLER DESIGN THAT CAUSES WATER TO COLLECT AND THEN BE INGESTED INTO THE ENGINE UNDER SUDDEN ACCELERATION. THE INGESTION OF THE WATER CAUSES THE COMPUTER TO BELIEVE THERE IS AN ENGINE PROBLEM AND PUTS IT INTO "LIMP MODE"; SUDDENLY AND SEVERELY CUTTING POWER. WHEN THIS HAPPENS AT HIGHWAY SPEEDS (60/70 MPH), IN TRAFFIC, IT CAUSES SITUATIONS THAT ARE POTENTIALLY VERY DANGEROUS. THE PROBLEM IS EXACERBATED AT NIGHT AND/OR DURING BAD WEATHER WHERE VISIBILITY IS BAD AND ROAD CONTROL IS REDUCED. NOTE THAT THIS ONLY HAPPENS DURING VERY HUMID (RAINY/FOGGY/MISTY/..) WEATHER AND IT CAN TAKE TWO PLUS HOURS OF CONSTANT DRIVING, DEPENDING ON SPEED AND HUMIDITY, FOR WATER TO COLLECT TO A POINT WHERE THE PROBLEM CAN OCCUR. MERCEDES IS AWARE. A BULLETIN HAS BEEN ISSUED FOR THE SOUTH EAST US BUT NO FIX IS AVAILABLE OR PLANNED. THIS AFFECTS ALL R172 SLK250, FROM LATE 2012 THROUGH 2015. WE HAVE HAD THIS HAPPEN 3 TIMES OVER TWO YEARS (OCT/13, NOV/14, NOV
Mileage: 10,000
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 2014 MERCEDES-BENZ SLK250; 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.