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Fuel systemPart report

2009 Mercedes-Benz CLK350 Fuel system Problems

Complaints
2about this part
Share
25%of 8 total for the year
Median mileage
48,795miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 2 complaints about the fuel system of the 2009 Mercedes-Benz CLK350, 25% of the 8 complaints for this model year. Where a mileage was given, the median is 48,795 miles.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“Strong fuel odor outside of vehicle following fill up. Mileage 59590.just purchased used without extended warranty.. Have not taken for service. Will seek info prior to taking to mb service.”

NHTSA complaint #10937449, filed 2016-12, 59,590 miles

“The contact owns a 2009 Mercedes-Benz CLK350. While operating the vehicle, the odor of fuel was present. The vehicle was taken to the dealer where it was diagnosed that the seal connected to the fuel pump was faulty and the fuel pump needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 38,000.”

NHTSA complaint #10955306, filed 2017-02, 38,000 miles

Related service bulletins

Fuel system: other model years

YearComplaintsShare of year
2009225%
2008640%
20071433%
20061130%

Other parts of the 2009 Mercedes-Benz CLK350

Visibility (wipers, defrost, mirrors)
2 complaintsAir bags
1 complaintsBrakes
1 complaintsElectronic stability control
1 complaintsOther or unknown
1 complaintsSeats
1 complaintsWheels
1 complaints

← All problems reported for the 2009 Mercedes-Benz CLK350

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Nov 1, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology