Verdict
2015 Mercedes SLK: Complaints, Recalls & Known Issues
What the public record actually says about the 2015 Mercedes SLK — every figure below is a NHTSA or EPA number, not an opinion.
The read
Middle-of-the-pack complaint volume for coupe.
Owners filed 4 NHTSA complaints — more complaints than 53% of 2015 coupes. Fuel/Propulsion System leads the reports (25%). No safety recalls on record.
Based on NHTSA complaint volume against 2015 coupes, not adjusted for how many were sold. It describes the model year, not the individual car you are looking at.
Complaints filed
4
Reports to NHTSA, 2015
Safety recalls
0
NHTSA campaigns on record
NHTSA crash test
Not rated
Overall NCAP rating
Combined MPG
No data
EPA estimate
Complaint volume vs. segment peers
More complaints than 53% of 2015 coupes
The bar is this car's percentile among 2015 coupes by complaint volume — a full bar means the fewest complaints in its class. Not adjusted for sales.
Known issues
Fuel/Propulsion System issues lead owner complaints (25% of 4 reports), followed by service brakes (25%).
Share of all 4 NHTSA complaints for this model year, grouped by the component owners named. Bars are scaled to the largest category. Examples: ODI 11730750.
Recalls
0 recalls — none issued for this model year as of Jul 2026. Recall records can change as NHTSA publishes new campaigns.
A campaign can apply to this model year without being incomplete on a specific vehicle. Check the VIN with NHTSA or a dealer to confirm whether a particular car needs repair.
Investigations
0 NHTSA investigations on record
No investigations are on record as of Jul 2026. An empty record is not a clean bill of health.
Crash-test ratings
No NHTSA crash test is on record for this year. Some vehicles and model years were not tested or do not have a published NCAP result.
Fuel economy by trim
No EPA fuel-economy record is available for this model year. Some trims and older vehicles were not tested or are not in the current EPA feed.
Before you buy
Useful next checks
Federal records tell you about patterns. These checks can tell you more about the specific car in front of you.
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Compare model years
"Fewest reports" and "most complained" describe raw NHTSA complaint totals, not vehicle reliability. The last few model years are left unlabelled because they have had less road time.
2015 Mercedes SLK: frequently asked
What does the complaint record show for the 2015 Mercedes SLK?
Owners filed 4 NHTSA complaints about the 2015 Mercedes SLK — more complaints than 53% of comparable 2015 coupes, so it sits toward the weaker end of its class. That's a signal, not a guarantee about any single car.
What are the most common problems on the 2015 Mercedes SLK?
The most-reported problem areas are Fuel/Propulsion System (25% of complaints) and service brakes (25%).
How many recalls does the 2015 Mercedes SLK have?
No safety recalls are on record for the 2015 Mercedes SLK as of Jul 2026.
What gas mileage does the 2015 Mercedes SLK get?
EPA fuel-economy figures for the 2015 Mercedes SLK aren't available yet.