Mercedes-Benz SLK350 Best and Worst Years by Owner Complaints
We rank Mercedes-Benz SLK350 model years by the number of owner complaints filed with NHTSA, from fewest to most. Complaint counts aren't failure rates: years that sold more cars, or that are older, can show more reports. We rank only model years at least five years old, because newer ones are still collecting reports. Among settled years shown, the 2014 drew the fewest (1) and the 2005 the most (21).
Complaints filed by model year
Every year compared
| Most-reported component | |||||
|---|---|---|---|---|---|
| 2014 Among the fewest complaints |
1 | 2 | Structure | — | 24 |
| 2008 Among the fewest complaints |
4 | 2 | Air bags | — | 19 |
| 2006 Among the fewest complaints |
10 | 0 | Power train | — | 19 |
| 2012 Among the most complaints |
12 | 0 | Fuel/propulsion system | — | 23 |
| 2007 Among the most complaints |
13 | 1 | Air bags | — | 19 |
| 2005 Among the most complaints |
21 | 0 | Power train | — | 19 |
Sources: NHTSA ODI complaints, NHTSA recalls, NHTSA NCAP, EPA; retrieved Oct 6, 2026.
What owners reported in the Mercedes-Benz SLK350 years with the most complaints
These settled model years drew the most owner complaints to NHTSA. The share in brackets is the part of that year’s complaints that names each component; one complaint can name several.
2005 Mercedes-Benz SLK350: 21 complaints
Most-reported: Power train 6 (29%); Service brakes 5 (24%); Suspension 5 (24%).
Reports mention 2 crashes, 1 fire, 4 injuries. Typical odometer reading when owners filed: 56,851 miles. 0 recall campaigns listed.
2007 Mercedes-Benz SLK350: 13 complaints
Most-reported: Air bags 9 (69%); Engine 3 (23%); Seats 1 (8%).
1 recall campaign listed.
2012 Mercedes-Benz SLK350: 12 complaints
Most-reported: Fuel/propulsion system 3 (25%); Air bags 1 (8%); Electrical system 1 (8%).
Reports mention 1 injury. Typical odometer reading when owners filed: 25,375 miles. 0 recall campaigns listed.
The Mercedes-Benz SLK350 years with the fewest complaints
2006 Mercedes-Benz SLK350: 10 complaints
Most-reported: Power train 5 (50%); Engine 2 (20%); Vehicle speed control 2 (20%).
Reports mention 1 crash, 1 fire, 1 injury. 0 recall campaigns listed.
Crashes, fires and injuries in Mercedes-Benz SLK350 owner reports
| Model year | Complaints | Crashes | Fires | Injuries | Deaths | Typical miles at filing |
|---|---|---|---|---|---|---|
| 2014 | 1 | 0 | 0 | 0 | 0 | — |
| 2012 | 12 | 0 | 0 | 1 | 0 | 25,375 |
| 2008 | 4 | 0 | 0 | 0 | 0 | — |
| 2007 | 13 | 0 | 0 | 0 | 0 | — |
| 2006 | 10 | 1 | 1 | 1 | 0 | — |
| 2005 | 21 | 2 | 1 | 4 | 0 | 56,851 |
Owner-reported, not verified by NHTSA. “Typical miles” is the median odometer reading in complaints that gave one (shown when at least 10 did). Source: NHTSA ODI complaints, retrieved Oct 6, 2026.
Largest Mercedes-Benz SLK350 recalls
- Driver's Frontal Air Bag Inflator May Rupture (2007–2008 model years; 711,159 vehicles across all models; filed Feb 2016; 16V081000)
- Inaccurate Vehicle Location for Emergency Services (2013–2016 model years; 24,226 vehicles across all models; filed Nov 2019; 19V787000)
- Brakes may Drag and Overheat (2016 model year; 5,818 vehicles across all models; filed May 2017; 17V308000)
- Air Bag may not be Properly Assembled (2014 model year; 311 vehicles across all models; filed Jul 2014; 14V386000)
- Low-Beam Headlights Adjusted Incorrectly/FMVSS 108 (2015 model year; 100 vehicles across all models; filed Jun 2016; 16V439000)
All 7 Mercedes-Benz SLK350 recall campaigns · Mercedes-Benz SLK350 problems, recalls and mpg by year · Used car inspection checklist
What the numbers can't tell you
- Sales volume. NHTSA publishes no sales figures with complaints, so a popular year draws more reports even if each car is no worse.
- Recent years are under-counted. Owners file reports for years after purchase; the newest model years will keep growing.
- The individual car. Maintenance, mileage and repairs matter more for one used car than any model-year average. Get a pre-purchase inspection and check open recalls by VIN.
Mercedes-Benz SLK350 years FAQ
Which Mercedes-Benz SLK350 year has the fewest complaints?
Among the model years shown whose counts have settled, the 2014 has the fewest owner complaints filed with NHTSA (1). That is a count of reports, not a measure of reliability.
Does fewer complaints mean a more reliable car?
Not necessarily. Complaint counts depend on how many cars were sold, how old they are and how many owners file reports. Use them to spot patterns worth asking about, alongside recalls, crash tests and a pre-purchase inspection.
Are there Mercedes-Benz SLK350 years to avoid?
No model year is officially one to avoid. By owner complaints to NHTSA, the settled years with the most reports are the 2005, 2007 and 2012 models, and across all years the most-reported problem area is the air bags. Compare those years with the ones that drew the fewest reports, then check any specific car for open recalls by VIN and get a pre-purchase inspection.
What is the most common Mercedes-Benz SLK350 problem?
Across the model years shown, owners most often report problems with the air bags (15 of 61 complaints list it). Each model-year report breaks the complaints down by component.
How many recalls does the Mercedes-Benz SLK350 have?
NHTSA lists 7 recall campaigns covering the Mercedes-Benz SLK350. See every one, with official wording and repair rates, on the Mercedes-Benz SLK350 recall page.
Why are newer years left out of fewest and most?
Owners keep filing complaints for years after a car is sold. We mark the two newest model years as still collecting reports, and we only rank years that are at least five years old.
How this page was madeSources, processing, limits, review and changes
Data sources
- NHTSA recalls by vehicle
Retrieved Oct 6, 2026 - US DOT recall completion rates (data.transportation.gov)
Retrieved Oct 6, 2026 - NHTSA ODI owner complaints
Retrieved Oct 6, 2026 - NHTSA NCAP 5-Star Safety Ratings
Retrieved Oct 6, 2026 - EPA fuel economy data (licence confirmation pending)
Retrieved Oct 6, 2026 - EIA weekly retail gasoline prices
Weekly, all taxes included
Processing
- Complaints are counted per component. One complaint can list several, so component totals add up to more than the total.
- Fuel cost = miles per year ÷ EPA combined mpg × EIA weekly price for your region.
Limitations
- Complaint counts are owner reports, not verified findings or failure rates. There is no sales denominator.
- Recall campaigns are listed for the model year. Only NHTSA and the automaker know whether a specific car was repaired.
- Recent model years are still collecting reports.
Review
Data compiled automatically from the official files listed here.
Changelog
- 2026-10-06 Data refreshed from the official files.