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Transmission and drivetrainPart report

2008 Mercedes-Benz CLS550 Transmission and drivetrain Problems

Complaints
1about this part
Share
6%of 17 total for the year
Median mileage
—not reported
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 1 complaints about the transmission and drivetrain of the 2008 Mercedes-Benz CLS550, 6% of the 17 complaints for this model year.

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.

“I bought a 2008 mercedes cls and have had it for a while now and with no warning it has started making a banging noise while idling. It idles very rough and shakes my car. I'm unable to drive it safely at this point. The engine is also mimicking symptoms of an idler gear/ balance shaft wearing down due to poor building materials from factory allowing movement of the timing chain. Apparently causing the engine to blow. I don't know what to do now. I don't know if it is covered by mercedes. But I know I am not alone on needing this to become a recall...”

NHTSA complaint #11591644, filed 2024-05

Related service bulletins

Transmission and drivetrain: other model years

YearComplaintsShare of year
2014110%
2012313%
200816%
2007411%

Other parts of the 2008 Mercedes-Benz CLS550

Fuel system
5 complaints
Air bags
3 complaints
Electrical system
3 complaints
Engine
2 complaints
Suspension
2 complaints
Brakes
1 complaints
Electronic stability control
1 complaints
Exterior lighting
1 complaints
Other or unknown
1 complaints
Steering
1 complaints
Tires
1 complaints

← All problems reported for the 2008 Mercedes-Benz CLS550

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 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