2004 Mercedes-Benz CLK320 Electrical system Problems
- Complaints
- 4about this part
- Share
- 25%of 16 total for the year
- Median mileage
- 70,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 4 complaints about the electrical system of the 2004 Mercedes-Benz CLK320, 25% of the 16 complaints for this model year. Where a mileage was given, the median is 70,000 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.
“My voltage regulator went out in my benz. It surged and destroyed other components of my vehicle. Not too mention that this is highly in safe. I researched on line, and mercedes benz had done a voluntary recall, but they are not acknowledging the issue now, and are denying it. They say my VIN doesn't match, and I questioned there integrity. This is such a dangerous issue, and I have a two year old son that must ride in this care. Can someone please help me. They know the problem exists, and it is dangerous, but refuse to fix it- now that is under ownership. …”
NHTSA complaint #10276470, filed 2009-07, 70,000 miles“The contact owns a 2004 mercedes benz CLK320. The contact stated that the check engine light was illuminated on the dashboard. When she had the vehicle inspected on two different occasions, it failed inspection since the light was on. She took the vehicle to a repair shop and was told that the secondary air injection system was the cause for the failure. A mechanic informed her of recall 08v303000, electrical system but when she called the manufacturer; she was told that her vehicle was not included. …”
NHTSA complaint #10307825, filed 2010-02, 80,000 miles“The contact owns a 2004 mercedes benz CLK320. The contact stated that the seat belt indicator is illuminated, which means the srs needs to be replaced. The failure prevents the seat belt from locking properly. There is also a tele-aide indicator flashing in the center of the instrument panel. The manufacturer stated that the vehicle was not included in NHTSA campaign id numbers 03v534000 (seat belts) and 08v303000 (electrical system). The contact would be responsible for the repair costs. The vehicle has been at the repair shop for the past two days. The failure mileage was 23,000. …”
NHTSA complaint #10265466, filed 2009-04, 23,000 milesRelated service bulletins
- 11015640Mar 5, 2025Complaint During a phone call, the called party has difficulty understanding/cannot understand the driver, or interference/background noises are audible to the called party…
- 11008091Sep 28, 2024Complaint During a phone call, the called party has difficulty understanding/cannot understand the driver, or interference/background noises are audible to the called party…
- 10166087Jul 10, 2014The presence of a quiescent current can have several causes. These are not always recognized and lead to an increased number of OK components being removed. Possible Hall sensor…
- 10205233Aug 5, 2013Mobile phone cotacts are not transferred completely.
- 10135917Feb 22, 2013Malfunctions of various control units and/or on-board power supply problems caused by water in the control unit tray under the driver/front passenger seat (dislocated, pinched or…
- 10033070Dec 16, 2009Xentry (mercedes): engine warning lamp is currently on or was on and a delay fault of the camshaft adjust to current or stored in the engine control unit. Models 171, 203, 209…
- 10028586Feb 27, 2009Mercedes vehicle: the srs indicator lamp is illuminated and code b1058 and b2dbo are stored, replace the srs control unit. Models 203 and model 209. Model years unknown.
Electrical system: other model years
Other parts of the 2004 Mercedes-Benz CLK320
6 complaintsAir bags
4 complaintsTransmission and drivetrain
2 complaintsEngine
1 complaintsFuel system
1 complaintsLatches, locks and linkages
1 complaintsSeats
1 complaintsBody and structure
1 complaintsTires
1 complaintsVisibility (wipers, defrost, mirrors)
1 complaints
← All problems reported for the 2004 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