Most common 2000 Mercedes-Benz CLK430 problems
Share of the 20 complaints; one complaint can involve more than one system. "~" is the median mileage when the problem started.
Mercedes-Benz CLK430 complaints by model year
NHTSA defect investigations
Federal safety investigators have looked into a possible defect involving the 2000 Mercedes-Benz CLK430:
Engine crankshaft pulley failure
The office of defects investigation (odi) opened this preliminary evaluation to investigate allegations of engine crankshaft pulley harmonic balancer failure that could result in loss of power-steering assist.odi has received a total of 546 non-duplicative reports that allege engine crankshaft pulley harmonic balancer failure on all Mercedes-Benz vehicles using the subject component.the subject component failures…
What 2000 Mercedes-Benz CLK430 owners say
Electrical system
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. The wiring on the interior of the housing is not exposed to the elements. The wiring on the exterior of the housing exposed to the elements exhibits the same failure, in that the protective insulating plastic coating is deteriorated and exposed copper wires are touching each other.
The instrument cluster LED problem with my 2000 Mercedes clk 430 has become more of a problem within the past month. It happens quite frequently now. Whenever I start the vehicle, the gear indicator does not indicate which gear I'm in and the car proceeds in low mode until I pull over and restart it. The safety hazard lies in the fact that I don't check my gear indicator constantly, so if it fails and I don't notice, the low/slow mode that the car automatically shifts into could get me killed on any street where the speed limit is at least 35. This car has given me numerous problems the past year and my safety seems to be in jeopardy more and more as the these issues increase in severity. …
Transmission & drivetrain
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 child then turned the steering wheel and the vehicle crashed into a fence. No injuries were reported. The vehicle was taken to an authorized dealer where the failure was not diagnosed, but it was repaired for body damages. A complaint was also filed with the manufacturer. The contact also stated that the vehicle was recently rekeyed, which May have contributed to the failure. The approximate failure mileage was 70,000.
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. Mileage was 77K.
2000 Mercedes-Benz CLK430 engines & fuel economy
| Engine | Transmission | Drive | MPG city / hwy / combined |
|---|---|---|---|
| 4.3L 8-cyl | 5-speed automatic | RWD | 16 / 23 / 19 |
EPA ratings. Class: Subcompact car.
Frequently asked questions
Is the 2000 Mercedes-Benz CLK430 a good car?
There isn't enough complaint history for the CLK430 to compare model years reliably. So far owners have filed 20 complaints with NHTSA.
What is the most common problem with the 2000 Mercedes-Benz CLK430?
The electrical system — 9 complaints, 45% of all complaints for this model year, most often about instrument cluster/panel. Next are the transmission & drivetrain (4) and engine & cooling (2).
How many recalls does the 2000 Mercedes-Benz CLK430 have?
NHTSA lists no recalls for the 2000 Mercedes-Benz CLK430. You can still confirm with your VIN using our VIN recall check.
At what mileage do 2000 Mercedes-Benz CLK430 problems happen?
The median mileage reported in complaints is about 60,000 miles; 40% of problems with a recorded mileage started before 50,000 miles.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.