definitely annoying
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
43,833 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2006 Mercedes-Benz CLK350 transmission problems

transmission problem

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2006 Mercedes-Benz CLK350 Owner Comments

problem #3

Sep 022013


  • 70,000 miles


The contact owns a 2006 Mercedes Benz Clk350. The contact stated that the vehicle reduced in speed when the accelerator pedal was applied. The contact mentioned that the accelerator pedal had to be depressed numerous times in order to accelerate, which responded intermittently. The contact was able to restart the vehicle in order to reset the computer. The vehicle was taken to an authorized dealer on several occasions where the failure was unable to be replicated. The vehicle was taken to an independent mechanic, who diagnosed that the transmission valve housing needed to be replaced. The vehicle was repaired. The manufacturer was notified of the failure. The approximate failure mileage was 70,000.

- Glenn Dale, MD, USA

problem #2

Oct 102009


  • 58,000 miles
Driving home on freeway at night, car shifted unexpectedly at high speed. Check engine light immediately came on. Came to stop exiting off freeway and car would not move, turned off and turned back on engine was able to limp home with check engine light still on. Towed to Mercedes and was told it was a "defective" speed sensor also was told this malfunctioning sensor could not be replaced in and of itself and that the whole valve body would have to be replaced at a cost of $2200 for a 2006 car with 58,000 miles on it. By virtue of the fact the sensor was defective shouldn't Mercedes have replaced this at their cost? "transmission electrohydraulic unit replaced at a cost of $2200 with 58,000 miles"

- Moorpark, CA, USA

problem #1

Dec 202005

CLK350 6-cyl

  • Automatic transmission
  • 3,500 miles
The transmission of my new car, 2006 mbz C280, has failed three times. The car goes into a false neutral while driving and then eventually falls into gear. After this episode, the car continues to drive in a low gear. The dealership has tried: 1. replacing the valve body on the car's transmission and uploading the new software 2. replacing the transmission with a completely new transmission from the dealership 3. replacing the valve body of the new transmission.

- Costa Mesa, CA, USA

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