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2.2

hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
72,125 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 fuel system problems

fuel system problem

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2006 Mercedes-Benz CLK350 Owner Comments

problem #9

Aug 152016

CLK350

  • 125,000 miles

A D V E R T I S E M E N T S

The contact owns a 2006 Mercedes-Benz Clk350. The contact stated that there was an abnormal fuel odor in the vehicle. There were no warning indicators illuminated. The vehicle was taken to an independent mechanic where it was diagnosed that the fuel pump gasket was cracked and needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 125,000.

- Chandler, AZ, USA

problem #8

May 162016

CLK350

  • 35,000 miles
Fuel pump failed at 35,000 miles. Dealer and manufacturer refused to replace. Wanted to charge $2000 to replace after complaining reduced charge to $1400.

- Gainesville, FL, USA

problem #7

Jan 102013

CLK350

  • 35,000 miles
The contact owns a 2006 Mercedes Benz Clk350. The contact stated that there was a strong odor of fuel outside of the vehicle. There was no fuel visible on the ground. The contact replaced the fuel level sending unit. The failure recurred and the vehicle was taken to the dealer, who replaced the fuel level sending unit located on the driver's side of the fuel tank. The manufacturer was notified of the failure. The approximate failure mileage was 35,000.

- Palmdale , CA, USA

problem #6

May 262014

CLK350

  • 72,000 miles

A D V E R T I S E M E N T S

The contact owns a 2006 Mercedes Benz Clk350. The contact stated there was a persistent odor of fuel coming from the vehicle. The vehicle was taken to an independent mechanic where it was diagnosed that the fuel tank was fractured at the sealing point and was leaking fuel.the vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was 72,000 and the current mileage was 76,000.

- Cape Coral, FL, USA

problem #5

Jul 022014

CLK350

  • 67,585 miles
The contact owns a 2006 Mercedes Benz Clk350. The contact stated that there were strong fumes of fuel emitting from the vehicle intermittently. The vehicle was taken to an authorized dealer, who diagnosed that the left sending unit was leaking and needed to be replaced. The vehicle was not repaired. The VIN was not available. The manufacturer was notified of the failure. The approximate failure mileage was 67,585.

- Allen, TX, USA

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problem #4

Mar 032014

CLK350 6-cyl

  • 72,094 miles
We smelled the odor of gasoline in our garage, so took our vehicle to Mercedes of henderson. We were informed that the fuel tank was cracked around the top mounting bolt and needed to be replaced. Upon further investigation, we noted that this is an ongoing problem with the Mercedes E and Clk class vehicles. The fact that the car has never been in an accident, this is obviously a defect in the manufacturing process. When researching on the internet, we observed numerous Mercedes owners with the same problem. Does our home have to burn to the ground before something is done to have Mercedes correct this problem.

- Henderson, NV, USA

problem #3

Apr 242013

CLK350 8-cyl

  • 108,000 miles

A D V E R T I S E M E N T S

When I filled the fuel tank, the inside of the car smells very strongly of gas fumes. The whole garage smelled strongly of gas fumes and gas was dripping on the floor of the garage. If the hot water heater decided to ignite, it could have caused a fire or explosion. I believe this is a similar issue to NHTSA investigation ea 13-003. The Cls class and the E class share the same chassis and fuel tank. If possible, please expand your investigation to include Cls class vehicles.

- Chandler, AZ, USA

problem #2

May 182012

CLK350 6-cyl

  • 75,449 miles
Fuel leakage/puddling out of top of left fuel sending unit, most notable after filling tank. Noticed at left rear tire well of car on outside only. Initially thought that the gasket on the sending unit was faulty (fuel staining noted on top of sending unit)so replaced gasket with initial improvement of problem. After several months problem appeared to recur but now clearly worsening. Fuel smell had until recently only been noticeable after parking in garage after filling tank, most recently noticeable in open parking lot after filling tank. Improves when tank less than 3/4 full. Recently removed inspection cover under left rear seat about 30 minutes after filling tank. Fuel appears to leak out from under the electric connection on top of the 2" diameter plastic disk, or at the edge of the disk, on the top of the sending unit. A 1-2 ml puddle of fuel develops within 30 minutes of filling the tank.

- Rolling Hills, CA, USA

problem #1

Dec 102012

CLK350 6-cyl

  • 59,000 miles
Vehicle was purchased from an authorized Mercedes Benz dealership and was a certified pre-owned vehicle. Automobile was garage kept and primarily driven to work with highway miles. Only premium non-ethanol mixed fuel was used from shell. Suddenly, one day, strong gasoline odor permeates garage. Most noticeable with full tank. The cause was a fuel tank sender unit. A plastic diaphragm within the unit developed a stress crack right at the boundary between two faces. It is clear that proper bonding between the two was not ideal during molding. Fuel would egress out this crack located under the back seat and on-top of the fuel tank. $1000 was recently spent on the replacement of sender unit. Some fuel odor still persists within vehicle. This was clearly a manufacturing defect and surprising considering the low miles and years on the vehicle. Regardless of ramifications, gasoline of sufficient quantity in places unintended, shows poor workmanship. Thank you. Updated 02/14/13 the consumer stated it appeared the plastic vessel itself was made by a tier supplier in germany. The leak stared from the seam.

- Dayton, OH, USA

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