AI Damage2000 Mercedes-Benz CLK430: common problems
Owners of the 2000 Mercedes-Benz CLK430 filed 20 complaints with NHTSA, most often about electrical system and powertrain. Details by component below, with sources.
Key figures
- Owner complaints
- 20
- involving a crash
- 1
What fails most often
- 1 Electrical system 45% of all complaints
- 2 Powertrain 20% of all complaints
- 3 Engine and cooling 10% of all complaints
- 4 Structure 10% of all complaints
- 5 Electronic stability control 5% of all complaints
- 6 Fuel system 5% of all complaints
- 7 Service brakes 5% of all complaints
- 8 Tires 5% of all complaints
- Electrical system: 9 complaints (45% of all).
- Powertrain: 4 complaints (20% of all), 1 of them with a crash reported by the owner.
- Engine and cooling: 2 complaints (10% of all).
- Structure: 2 complaints (10% of all).
- Electronic stability control: 1 complaints (5% of all).
Symptoms owners describe
How many of the 20 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) |
|---|---|---|---|
| Electrical system | 9 | 0 | 0 |
| Powertrain | 4 | 1 | 0 |
| Engine and cooling | 2 | 0 | 0 |
| Structure | 2 | 0 | 0 |
| Electronic stability control | 1 | 0 | 0 |
| Fuel system | 1 | 0 | 0 |
| Service brakes | 1 | 0 | 0 |
| Tires | 1 | 0 | 0 |
| Vehicle speed control | 1 | 0 | 0 |
| Visibility | 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.
Tl* the contact owns a 2000 mercedes benz clk430. The contact stated that the vehicle was parked and shut off when a child was able to shift the vehicle into neutral or reverse, without the presence of the key in the ignition. The vehicle began to roll backwards down a hill as a result.
The interior of the headlamp assembly was melted and burnt. Upon close examination all of the wiring inside and outside of the headlamp enclosure was deteriorated. The protective plastic covering over the wires were crumbling and had fallen apart, bare wires had been touching inside of the housing.
We just purchased a 2002 mercedes benz clk 430. For barely two weeks and can't drive it. We are having major issue with the trunk to open because our battery is totally dead. We cannot jump cable the car because the batery is in the trunk and the trunk will not even open with the manual key that it comes with.
I have been experiencing intermittent sporadic failure of the abs, bas, esp systems when I apply the brake. On occasions the gas pedal sticks and the car speeds up to dangerous speed. The car has to be put in neutral and once stop and restart, it would run normal again, and the car shows "no malfunction".
Shift lever inoperative/ erratic: 2000 clk430 being driven when transmission refused to shift from low gear, then second gear, and finally not at all! Had vehicle towed to shop, shop found shifter had gone bad. I didn't know the transmission was electronically controlled. $1500 later it now runs out fine.
Front bumper cover / air dam broke on ordinary wheel stop in public parking lot. Car has inadequate clearance and front bumper cover / air dam is constructed so that it hooks on wheel stops and breaks. It happens every time you park if you bring the front tires to within a foot of the wheel stops.
Car engine shut off at traffic light with traffic build up behind me. After an hour of waiting for tow truck, it suddenly started again. Took it to garage which changed the crankshaft sensor for $308.55. Apparently, faulty crankshaft sensor is a known common problem with mercedes clk cars!!
The front plastic bumper has been designed to be too low to the ground and parking lot wheel bumpers are higher. When parking the 2000 clk model 430, this mismatch causes the plastic bumper to drag along the concrete bumper stop, and because of very weak design of the bumper, it will crack the bumper at its weakest…
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 8,257 of 36,656 model years in the NHTSA data (top 23% most complained about).
On average one model year of the CLK430 has 9 complaints (4 years in the data). This year has 20, above average.
What to check before buying
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Powertrain. Shift quality under load, harsh shifts, transmission codes, CV joints.
- Engine and cooling. Radiator and fan after a frontal hit, coolant level and condition, overheating.
- Structure. Rails, pillars, panel gaps, signs of pulling or welding.
Other years of this model
Questions and answers
What are the most common problems with the 2000 Mercedes-Benz CLK430?
Owner complaints to NHTSA most often mention: electrical system, powertrain, engine and cooling. Total complaints: 20. The most frequent symptoms in complaint texts: infotainment or screen glitches (10%), stalls while driving (10%).
How many service bulletins (TSB) were issued for the 2000 Mercedes-Benz CLK430?
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 2000 Mercedes-Benz CLK430 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 2000 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 2026-11-05.