2002 Mercedes-Benz SLK230: common problems
Owners of the 2002 Mercedes-Benz SLK230 filed 5 complaints with NHTSA, most often about electronic stability control and powertrain. Details by component below, with sources.
Key figures
- Owner complaints
- 5
What fails most often
- 1 Electronic stability control 40% of all complaints
- 2 Powertrain 40% of all complaints
- 3 Service brakes 40% of all complaints
- 4 Electrical system 20% of all complaints
- 5 Engine 20% of all complaints
- 6 Vehicle speed control 20% of all complaints
- Electronic stability control: 2 complaints (40% of all).
- Powertrain: 2 complaints (40% of all).
- Service brakes: 2 complaints (40% of all).
- Electrical system: 1 complaints (20% of all).
- Engine: 1 complaints (20% of all).
Symptoms owners describe
How many of the 5 NHTSA complaints mention each symptom (automatic count from complaint text; one complaint can mention several).
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Electronic stability control | 2 | 0 | 0 |
| Powertrain | 2 | 0 | 0 |
| Service brakes | 2 | 0 | 0 |
| Electrical system | 1 | 0 | 0 |
| Engine | 1 | 0 | 0 |
| Vehicle speed control | 1 | 0 | 0 |
| Other | 1 | 0 | 0 |
What owners report
Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.
The car has until 2020 been almost exclusively serviced by Mercedes Benz in Fort Washington / PA where at the crfax report one can see that the radio, ECU have been meddled with before at this service location.
My gear shifter is defective as I have problem taking it out of gear stationary to drive and also the car does not know what gear I shift into causing high engine revive in the engine and sometimes the car will not drive as it won't move in the middle of traffic on the local roads and highway while in motion from…
I was driving on the freeway doing about 55 mph when all of the sudden the car brakes by it self with no warning whats so ever , that was a very scary situation I had vehicles behind me and they had to brake too, that was for about 3 to 5 seconds , I was shaking and scare because I didn't know what happen, another…
Brakes are applied unexpectedly while traveling different speeds. I have had the crap scared out of me the last time this happened while traveling at about 50mph. The car left skid marks for about 50ft and almost caused someone to rear end me as well as my car almost going sideways into another vehicle.
When owners complained
NHTSA complaints by filing year. The peak shows at what age the problems show up most.
Comparison
By complaint count this model year ranks 14,283 of 36,659 model years in the NHTSA data (top 39% most complained about).
On average one model year of the SLK230 has 23 complaints (7 years in the data). This year has 5, below average.
What to check before buying
- Electronic stability control. ABS/ESC sensors, steering angle, codes after suspension repair.
- Powertrain. Shift quality under load, harsh shifts, transmission codes, CV joints.
- Service brakes. Pedal feel, ABS operation, leaks, discs and hoses.
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
Other years of this model
Questions and answers
What are the most common problems with the 2002 Mercedes-Benz SLK230?
Owner complaints to NHTSA most often mention: electronic stability control, powertrain, service brakes. Total complaints: 5. The most frequent symptoms in complaint texts: infotainment or screen glitches (20%), vibration (20%), warning lights, check engine (20%).
How many service bulletins (TSB) were issued for the 2002 Mercedes-Benz SLK230?
NHTSA lists 0 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2002 Mercedes-Benz SLK230 from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 2002 models
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-06.