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How reliable is the Mercedes Benz Slk?

Owner-reported reliability data: inspection results, typical mileage, and the most common failures.

The Mercedes Benz Slk passes first-time inspections at roughly the European average. The most commonly reported issues are a spring or spring component fractured or seriously weakened, a suspension joint dust cover missing or no longer prevents the ingress of dirt etc, brake pipe damaged or excessively corroded. Typical mileage by age and a year-by-year breakdown of reliability are shown below. All figures are owner-reported real-world data, not a marketing rating.

Reliability & Breakdown Risk
80.6% pass rate

Above average reliability

Based on 16,487 inspection tests. First-time pass rate: 80.6%.

First-time inspection pass rate80.6%
Dangerous defect rate
3.6%
Retest rate
22%
Typical mileage by age2012 cohort
Age 3
-
Age 5
-
Age 10
95,835 km
Annual mileage distributionfrom 129 vehicles
Bottom 10%
1,475 km
Low 25%
2,678 km
Median
4,801 km
High 25%
7,722 km
Top 10%
11,285 km
Most common inspection failures
A spring or spring component fractured or seriously weakened2.7%
A suspension joint dust cover missing or no longer prevents the ingress of dirt etc1.6%
Brake pipe damaged or excessively corroded1.4%
A suspension pin, bush or joint excessively worn1.2%
A tyre cords visible or damaged1.2%
Where failures most often occur
Front Offside(4%)
Front Nearside(3.5%)
Rear Nearside(2.2%)
Reliability indicators are model-level averages from Carlytics-analyzed inspection and breakdown records, not specific to this individual vehicle.

Mercedes Benz Slk reliability by year

How the Mercedes Benz Slk performs at first-time inspection, broken down by the year cohort. Empty cells mean we don't have enough owner-reported data for that year yet.

Year cohortPass rateTypical mileage @ 5 yrs
199671.7%–
199777.4%–
199875.1%–
199975.8%–
200076.3%–
200178.3%–
200278.6%–
200374.2%–
200471.9%–
200572.8%–
200673.9%–
200773.2%–
200874.5%–
200974.6%–
201075.1%–
201181.2%–
201280.6%–
201380.6%–
201483.8%–
201585.4%–

Model-level pattern, not per-car prediction

These figures describe the Mercedes Benz Slk as a model. The reliability of any individual Mercedes Benz Slk also depends on service history, accident history, and how it was driven. Run a free VIN check to see the records attached to a specific car you're considering.

Buying a Mercedes Benz Slk?

Reliability tells you the pattern. A VIN check tells you the car.

Frequently asked questions

Is the Mercedes Benz Slk reliable?

Based on owner-reported inspection records, the Mercedes Benz Slk passes first-time inspections at roughly the European average. Its first-time inspection pass rate sits around 81%. Reliability varies by year and engine: see the year-by-year breakdown on this page for the specific cohort you're considering.

What are the common problems on the Mercedes Benz Slk?

The most common owner-reported issues are: A spring or spring component fractured or seriously weakened (2.7% of inspections); A suspension joint dust cover missing or no longer prevents the ingress of dirt etc (1.6% of inspections); Brake pipe damaged or excessively corroded (1.4% of inspections); A suspension pin, bush or joint excessively worn (1.2% of inspections); A tyre cords visible or damaged (1.2% of inspections).

What mileage is normal for a Mercedes Benz Slk?

For a typical Mercedes Benz Slk, owner-reported average mileage works out to about – at 3 years, – at 5 years, and 95,835 km at 10 years. The mileage section on this page shows the full distribution, high-use vs low-use cars often differ by a factor of three.

How do I check a specific Mercedes Benz Slk before buying?

Enter the 17-character VIN on Carlytics. The free check shows decoded specs and open safety recalls. The full vehicle history report (from EUR 8.90) cross-references owner-reported issues, mileage records, and stolen-vehicle databases for the specific car, model-level reliability tells you the pattern, the VIN check tells you the car.

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