2003 Mercedes Benz C320 Problems, Complaints & Recalls

Source: NHTSA · Updated Jan 29, 2026 · 22 owner complaints analyzed

Compared with other C320 years
More complaints than other years 3rd of 7 for complaints
NHTSA crash rating
Not rated

Owners have filed 22 complaints with NHTSA about the 2003 Mercedes Benz C320. That ranks 3rd out of 7 C320 model years for complaints. The most reported problem area is electrical system (7 complaints, 32%), typically at around 80,000 miles. Complaints mention 2 crashes, 1 fire, 2 injuries. There are 3 safety recalls covering this model year.

Complaints are unverified owner reports and are not adjusted for sales volume.

Compare with another car

Most common 2003 Mercedes Benz C320 problems

Complaints grouped by the part of the car owners reported, with the median mileage when the problem happened.

Electrical System7 · ~80,000 mi
Power Train5 · ~47,115 mi
Air Bags4 · ~100,000 mi
Engine and Engine Cooling3 · ~50,026 mi
Visibility3 · ~105,000 mi
Exterior Lighting2 · ~170,000 mi
Fuel System, Gasoline2 · ~50 mi
Suspension2 · ~80,000 mi
Vehicle Speed Control2 · ~50 mi
Engine1 · ~36,000 mi
Problem areaComplaintsShareMedian milesOwners mention mostTypical repair cost
Electrical System732%80,000——
Power Train523%47,115——
Air Bags418%100,000——
Engine and Engine Cooling314%50,026——
Visibility314%105,000——
Exterior Lighting29%170,000——
Fuel System, Gasoline29%50——
Suspension29%80,000——
Vehicle Speed Control29%50——
Engine15%36,000——
Equipment15%31,000——
Fuel/propulsion System15%170,000——
Latches/locks/linkages15%31,000——
Seats15%80,000——
Service Brakes15%70,000——
Steering15%———
Structure15%———

One complaint can list several problem areas, so shares can add up to more than 100%.

Complaints by year received

Peak: 2008, with 3 complaints
2002: 1200212003: 222007: 1200712008: 332009: 1200912010: 222011: 1201112013: 112014: 2201422016: 222017: 1201712020: 112023: 2202322024: 112026: 120261

n = 22 complaints · Source: NHTSA

2003 Mercedes Benz C320 recalls (3)

Tap a recall to see the problem, the risk and the fix.

Visibility:sun/moon roof assemblyNov 19, 2024 · NHTSA campaign 24V874000 · 33,456 vehicles

Problem: Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2001-2011 C-Class, CLK, E-Class, and CLS vehicles. Please see the recall report for a complete list of models and model years. The glass sunroof panel may not be properly secured and can detach.

Risk: A detached sunroof panel can become a road hazard, increasing the risk of a crash.

Fix: Dealers will inspect and replace the sunroof panel as necessary, free of charge. Owner notification letters were mailed January 10, 2025. Owners may contact MBUSA customer service at 1-800-367-6372. This recall is an expansion of previous NHTSA recall number 22V-954. MBUSA's number for this recall is 2024120001/2/3.

Visibility:sun/moon roof assemblyDec 23, 2022 · NHTSA campaign 22V954000 · 131,653 vehicles

Problem: Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2001-2011 C-Class, CLK, E-Class, and CLS vehicles. Please refer to MBUSA's recall report for specific vehicle model details. The glass sunroof panel may not be properly secured and may detach.

Risk: A detached sunroof panel may become a road hazard, increasing the risk of a crash.

Fix: Dealers will inspect and replace the sunroof panel as necessary free of charge. Owner notification letters were mailed February 3, 2023. Owners may contact MBUSA customer service at 1-800-367-6372. This recall expands NHTSA recall number 19V-918. MBUSA's numbers for this recall are 2023010004, 2023010005, and 2023010006.

Visibility:sun/moon roof assemblyDec 20, 2019 · NHTSA campaign 19V918000 · 747,928 vehicles

Problem: Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2001-2011 vehicles. The bonding between the glass panel and the sliding roof frame may deteriorate, possibly resulting in the glass panel detaching from the vehicle. For a full list of the affected models visit: https://static.nhtsa.gov/odi/rcl/2019/RMISC-19V918-4126.pdf

Risk: A detached glass panel can separate from the vehicle and become a road hazard, increasing the risk of a crash.

Fix: MBUSA will notify owners, and dealers will inspect the glass panel bonding and replace the sliding roof, as necessary, free of charge. The recall began July 10, 2020. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2020040011.

To see whether a specific car still has an open recall, enter its VIN on NHTSA's official recall lookup. You can also decode a VIN here.

Recent owner reports

Short excerpts of the latest complaints filed with NHTSA, with personal details removed. Full reports can be searched on NHTSA.gov.

The secondary instrument fuse block located on the driver's side of the dashboard erupted in flame while the vehicle was being driven, endangering its occupant, causing significant damage to its interior, and resulting in a local law enforcement "traffic hazard" determination.

Electrical System · received Jan 29, 2026 · NHTSA complaint 11714189

The contact owns a 2003 Mercedes-Benz C320. The contact stated that the sunroof had failed to open, and the sunshade cover failed to close, causing the sunrays to penetrate the vehicle. The vehicle was taken to the dealer, where an unknown assessment was made. The vehicle was not repaired…

Electrical System · received Aug 6, 2024 · NHTSA complaint 11606841

The contact owns a 2003 Mercedes-Benz C320. The contact received notification of NHTSA Campaign Number: 22V954000 (Visibility) however, the contact was advised by the dealer that he needed to open and close the sunroof to perform the recall however, if the motor failed the contact would pay for the…

Visibility · received Jul 13, 2023 · NHTSA complaint 11532020

The contact owns a 2003 Mercedes-Benz C320. The contact stated that the moonroof made an abnormal sound and failed to open properly. The vehicle was taken to the dealer, where the moonroof was permanently sealed. The contact received NHTSA Campaign Number: 22V954000 (Visibility) and the dealer…

Visibility · received Feb 23, 2023 · NHTSA complaint 11508730

"check coolant level" level warning sign was on. Apparently, there is leaking of coolant some where. It was at the water pump, which was replaced on june 20, 2019. It happens again now, about 9 months later.

Engine · received Mar 12, 2020 · NHTSA complaint 11317690

Other Mercedes Benz C320 years

← 2002 C320 · 2004 C320 →

YearComplaintsRecalls
2007 C32020
2006 C32020
2005 C320154
2004 C320153
2003223
2002 C320683
2001 C320633

See all Mercedes Benz C320 problems by year, every Mercedes Benz model, or the Mercedes Benz VIN decoder.

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Frequently asked questions

What are the most common problems with the 2003 Mercedes Benz C320?

Owners most often report electrical system, power train, air bags problems. The top one, electrical system, accounts for 7 complaints.

Was there a recall on the 2003 Mercedes Benz C320?

Yes, 3 safety recalls. Enter your VIN at NHTSA.gov to check whether the repairs were done on your car.

Was the 2003 Mercedes Benz C320 a good year?

Complaint data can't fully answer that, because counts aren't adjusted for sales. Compared with other C320 model years, the 2003 has more complaints than most years. Always get a pre-purchase inspection and check the VIN for open recalls.