2002 Mercedes-Benz CLK320 Engine Problems
- Complaints
- 1about this part
- Share
- 6%of 16 total for the year
- Median mileage
- 173,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 1 complaints about the engine of the 2002 Mercedes-Benz CLK320, 6% of the 16 complaints for this model year. Where a mileage was given, the median is 173,000 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.
“We had a brake booster vacuum line that connects to the aluminum intake with a plastic fitting on a 2002 mercedes CLK320 (173k miles) that got brittle and broke. Thankfully no one was injured or killed. I'm an ex-mechanic and have never seen plastic fitting used for the vacuum line to the brake booster on the engine. Over time this will get brittle and break. This vacuum line does 2 things, #1 it keeps the car running with normal power, #2 allows you to have brakes that operate normally. …”
NHTSA complaint #11040268, filed 2017-10, 173,000 milesRelated service bulletins
- 11017039Apr 1, 2025Complaint Vehicle with atypical reduced heat output. Cause Silicate granulate may have escaped from a damaged bag in the expansion reservoir (not visible), reducing the coolant…
Engine: other model years
Other parts of the 2002 Mercedes-Benz CLK320
8 complaintsBrakes
2 complaintsEngine cooling
2 complaintsBody and structure
2 complaintsAir bags
1 complaintsExterior lighting
1 complaintsFuel system
1 complaintsLatches, locks and linkages
1 complaintsOther or unknown
1 complaintsSeat belts
1 complaintsSeats
1 complaintsSteering
1 complaints
← All problems reported for the 2002 Mercedes-Benz CLK320
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