1998 Mercedes-Benz SLK

Typical pattern

7.5% of complaints about the 1998 Mercedes-Benz SLK came in the first year, which is unremarkable for a 1998 vehicle — around the middle of the 180 model-years on record. The median complaint arrives at 7.1 yr in service. The most-reported system is exterior lighting (15 complaints), typically at 7.7 yr or about 39,000 miles.

Covers 1 variant: SLK230 (42)

Complaints: 40
Median age at failure: 7.1 yr
Median mileage: 39,000 n=22
Crash / fire / tow: 17.5% of reports
Safety recalls: 0

In owners’ own words

Exterior lighting 51,000 mi 6.0 yr in service

WHILE DRIVING TAIL LIGHTS FAILED WITHOUT WARNING. THE DEALERSHIP MECHANIC SAID THAT THE PROBLEM WAS DUE TO THE TAIL LIGHT ASSEMBLY BURNING UP. THE PROBLEM HAS NOT BEEN RESOLVED. *NLM DEALERSHIP REPLACED THE BOTH LEFT AND RIGHT TAIL LIGHT ASSEMBLY WITH NEWER VERSION. MECHANIC STATED THE ORIGINAL PART WOULD MALFUNCTION AT ANY TIME WITHOUT THE DRIVER BEING AWARE. CONSUMER STOPPED DRIVING THE VEHICLE UNTIL PART WAS REPLACED. *PH *NLM

Exterior lighting 22,000 mi 6.5 yr in service

WHILE BRAKING TAIL LIGHTS FAILED. DEALERSHIP REPAIRED THE TAIL LIGHTS. HOWEVER, PROBLEM RECURRED. *AK

Exterior lighting mileage not reported 7.1 yr in service

BRAKE LIGHTS WERE INOPERATIVE. VEHICLE WAS TAKEN TO THE DEALER FOR INSPECTION, AND MECHANIC DETERMINED THAT THE CIRCUIT BOARD NEEDED TO BE REPLACED.THIS INFORMATION WAS PROVIDE BY MRS. MARGO'S HUSBAND LENOR KARSTADT.*AK

Other SLK model years

How to read this

This is what owners reported, not a reliability rating. People file with NHTSA about alarming failures, not routine ones, and complaint volume tracks how many cars were sold.
Failure ages come from the incident date on each complaint, populated on about 83% of records. Mileage is shown where reported — NHTSA’s 2021 system change cut mileage capture to roughly 15%, so it thins out sharply after MY2020.
Every rank compares this vehicle only against others of the same model year. A 2025 car has not had time to accumulate five-year failures, so comparing early-failure share across years is meaningless.
Fourteen make-months distorted by media storms and mass recalls — Toyota in February 2010 ran 11× normal volume across 33 models — are excluded.
Recalls are manufacturer actions and authoritative; complaints are not. A recall listed here may already have been performed on any individual car. Check a specific VIN at nhtsa.gov/recalls.

1998 Mercedes-Benz SLK

When each system is reported — middle 50% of complaints

In owners’ own words

Other SLK model years

How to read this