Mercedes-Benz

Clk-Class (2003)

2003 · Luxury Sedan ยท 1 engine
Best Engine โŒ Avoid (1.0)
32 NHTSA Complaints
0 Recalls
2 Fire Reports
5 Crash Reports
View all 7 generations of the Mercedes-Benz Clk-Class → ๐Ÿ“‹ Inspection checklist

Engine Reliability Ratings

Show 3 additional engine variants with limited data
These engines appear in fewer than 10 owner complaints and aren't included in the main ratings above. Low counts can mean a genuinely clean record, but they can also reflect VIN-decode anomalies in NHTSA data. Treat as informational, not as a confident rating.

Mercedes-Benz Clk-Class Unidentified Engine

โš ๏ธ Caution (3.0)
6 complaints 6.0 per year
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Complaint Breakdown

transmission
2
safety systems
1
interior
1
wheels tires
1
exterior
1

Known Issues

Transmission Issues (2 complaints)
Safety Systems Issues (1 complaints)
Interior Issues (1 complaints)

4.3-V8-Gas

4.3L 8-cyl / 275 hp
โš ๏ธ Caution (3.4)
3 complaints 3.0 per year Gasoline
View details

Complaint Breakdown

other
1
electrical
1
body
1

Known Issues

Electrical System Issues (1 complaints)
Body/Trim Issues (1 complaints)

Vehicle-Level Issues

These issues affect the Mercedes-Benz Clk-Class regardless of engine variant.

Electrical System Issues (7 complaints)
electrical critical
Interior Issues (5 complaints)
interior critical
Safety Systems Issues (5 complaints)
safety_systems critical

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Frequently Asked Questions

What are the most common 2003-2003 Mercedes-Benz Clk-Class problems?

The 2003-2003 Mercedes-Benz Clk-Class has accumulated 32 NHTSA complaints. The most frequently reported problem areas are Electrical System, Interior, Safety Systems. As with any used vehicle, an inspection before buying and a vehicle history report are recommended.

Which Mercedes-Benz Clk-Class engine is most reliable?

The 2003-2003 Mercedes-Benz Clk-Class was offered with 4 engine options. Based on NHTSA complaint data, the 3.2L 6-cyl has the lowest complaint density and is considered the most reliable choice for buyers.

Is the 2003-2003 Mercedes-Benz Clk-Class a good used car?

The 2003-2003 Mercedes-Benz Clk-Class can be a sound used car depending on trim, mileage, and maintenance history. With 32 total NHTSA complaints on record, prospective buyers should review the known problem areas and check for open recalls before buying.

How many NHTSA complaints does the 2003-2003 Mercedes-Benz Clk-Class have?

The 2003-2003 Mercedes-Benz Clk-Class has 32 complaints filed with NHTSA as of our latest data pull. Complaint counts reflect owner-reported issues and do not necessarily indicate defects or safety risks on their own.

What recalls affect the 2003-2003 Mercedes-Benz Clk-Class?

There are 0 NHTSA recalls affecting some 2003-2003 Mercedes-Benz Clk-Class vehicles. Recall status varies by VIN โ€” check the NHTSA recall database at recalls.nhtsa.dot.gov with your specific VIN to confirm which campaigns apply.

What should I check before buying a used Mercedes-Benz Clk-Class?

Before buying a used Mercedes-Benz Clk-Class, verify all open recalls are completed via the NHTSA VIN lookup tool. Pay particular attention to Electrical System, Interior, Safety Systems, which are the most commonly reported problem areas. Request maintenance records, have an independent mechanic inspect the vehicle, and run a vehicle history report to check for prior accidents or title issues.

Does the Clk-Class have NHTSA crash test ratings?

NHTSA has not published crash test ratings for the 2003 Mercedes-Benz Clk-Class. Not all vehicles are tested each year. For the latest NHTSA safety information, visit nhtsa.gov/ratings.

Data from NHTSA federal complaints database. 32 complaints analyzed. Data confidence: moderate. Last updated: 2026-05-23.

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