The Lemon IndexAll cars · Mercedes-Benz C-Class
2003 Mercedes-Benz C-Class.
The 2003 Mercedes-Benz C-Class is one of the most reliable years by owner complaints: 24 complaints in its first 3 years and a Lemon Index of 45, where 100 is the average car. Owners complain most about transmission & drivetrain, it has 3 recalls, and it gets 18 to 24 mpg combined. The best Mercedes-Benz C-Class year is 2011.
Before you buy. What matters most for this car.
How serious. Out of 102 owner complaints, owners reported:
Older model year: fewer owners filed complaints back then, so treat the score as rough.
Every Mercedes-Benz C-Class year. 2003 is highlighted. Lower is better.
What owners complain about most. From owner complaints to the government.
Share of this year's owner complaints filed with NHTSA, not the share of cars that break. One complaint can name more than one area.
When owners reported problems. From owner complaints to the government.
Most owners who filed a complaint with NHTSA had 20K to 101K miles on the car (72 complaints listed the miles). This shows when people who had a problem reported it, not the odds that your car will have it.
- engine complaints mostly came at 46K–75K miles
Recalls 3
- visibility 2024
Please see the recall report for a complete list of models and model years.
- visibility 2022
Please refer to MBUSA's recall report for specific vehicle model details.
- visibility 2019
The bonding between the glass panel and the sliding roof frame may deteriorate, possibly resulting in the glass panel detaching from the vehicle.
Recall repairs are free at any dealer. A recall only matters if it's still open on that exact car, so check its VIN.
Problems Mercedes-Benz told dealers about
Mercedes-Benz sent dealers 58 repair notes for this car. The ones about its biggest problems:
- Engine oil leaks
- Engine ticking (piston slap like sound) noise when accelerating between 1200 and 3000 rpm
- Check engine light on / fault codes fc1200 / fc1208 stored in me-sfi control unit
Ask a seller or mechanic if these were done. Some are free under warranty or a special program.
Fuel cost and engines
About $3300–4400 a year in fuel (EPA estimate). Engines: 1.8L 4-cyl, 2.6L 6-cyl, 3.2L 6-cyl.
In owners' words
I bought my mercedes c230 kompressor 9 days ago. It has only 380 miles on it. 2 days in a row when the car is placed into drive the entire vehicle shakes violently. Mercedes is going to attempt to fix the problem. Ss.
2003 Mercedes-Benz C-Class owner · NHTSA complaint 10030281
More owner reports
2003 c230 has transmission that jerks, and requires excessive effort to get vehicle to move when in reverse, also has weak rim design, and bend easily, hit pot hole on highway and bent front rim.
NHTSA complaint 10043736
New car died in middle of the road. Vehicle stalled when coming to a stop.
NHTSA complaint 10101636
Quick answers
Is the 2003 Mercedes-Benz C-Class reliable?
Yes, it is one of the most reliable by government complaints. It drew 2.2× fewer complaints than average filed with NHTSA in its first 3 years, per car sold (Lemon Index 45; 100 is average, lower is better). The best Mercedes-Benz C-Class year by this measure is 2011.
What are the most common 2003 Mercedes-Benz C-Class problems?
In owner complaints to the government, the parts named most are transmission & drivetrain (42%), engine (29%) and speed control (17%). That is the share of complaints, not the share of cars that break.
How many recalls does the 2003 Mercedes-Benz C-Class have?
3 safety recalls (latest: visibility). Recall repairs are free at any dealer; check a specific car's VIN at nhtsa.gov/recalls.
What gas mileage does the 2003 Mercedes-Benz C-Class get?
18 to 24 mpg combined, depending on the engine (EPA estimate).
At what mileage do 2003 Mercedes-Benz C-Class problems start?
Half of the owners who gave a mileage reported the problem between 20,200 and 101,500 miles. The middle report was at 65,400 miles, from 72 complaints.
Does the 2003 Mercedes-Benz C-Class have transmission problems?
Transmission and drivetrain issues make up 42% of its owner complaints.
How much does the 2003 Mercedes-Benz C-Class cost in fuel a year?
About $3300 to $4400 a year, by the EPA's current estimate.
What engines does the 2003 Mercedes-Benz C-Class have?
1.8L 4-cyl, 2.6L 6-cyl, 3.2L 6-cyl.
What Mercedes-Benz C-Class year is better than the 2003?
By owner complaints per car sold, the best recent years are 2011, 2012 and 2010.
Lemon Index = safety complaints filed with the U.S. government (NHTSA) in a car's first 3 years, per car sold, against the average car of the same model year. 100 is average; lower is better. A complaint is an owner's report, not a confirmed defect. How it works