2005 Mercedes-Benz SLK350 Electrical system Problems
- Complaints
- 2about this part
- Share
- 10%of 21 total for the year
- Median mileage
- 97,500miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 2 complaints about the electrical system of the 2005 Mercedes-Benz SLK350, 10% of the 21 complaints for this model year. Where a mileage was given, the median is 97,500 miles. 1 a fire, according to the filers.
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.
“Ignition switches inadvertently turn from run to accessory position while car is driven and I have to restart the car to keep going. I woke up to read in the newspaper today (2/28/2014) that there is a recall on the GM faulted ignition deaths and the same exact problem described is in my car and still exists in this vehicle. I love this car but it scares me. I told the local new car dealership on this and they said it would cost about $2,000.00 to fix it and I should wait till it gets worse before fixing it. …”
NHTSA complaint #10566444, filed 2014-02, 35,000 miles“The emergency brake line caught fire underneath the arm rest compartment. Traced the line back to rear tires and nothing electrical could be seen touching brake cable line. So no obvious reason why cable would ignite. I was parked in car port stall after a short trip to a friends house.”
NHTSA complaint #11047045, filed 2017-11, 160,000 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…
- 10167564Jul 12, 2013Customer experiences low battery conditions, resulting in jump starts, and eventually requiring battery replacement.
- 10167563Jul 8, 2013The COMAND unit does not start or the COMAND display remains dark. The COMAND unit cannot be operated. Note: The problem disappears after a lengthy idle period (>6h) or after…
- 10048279Nov 1, 2012Mercedes: camshaft adjustment solenoid may leak oil due to settling properties of seal and the engine wiring harness will be retrofitted with four adapter harnesses as a…
- 10044201Apr 5, 2012Xentry: mercedes benz: vehicle does not perform automatic engine stop although the eco function was activated via the eco button. No model years given. Also included model 169…
- 10037653Dec 10, 2010Mercedes-benz: there are electrical production quality issues that cause the air bag warning light to illuminate.
- 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…
- 10032568Aug 1, 2009Mercedes benz service campaign: see document search button for owner letter. Software calibration number (scn) coding; engine control module. The vehicles fuel tank leak…
Electrical system: other model years
Other parts of the 2005 Mercedes-Benz SLK350
6 complaintsTransmission and drivetrain
6 complaintsBrakes
5 complaintsSuspension
5 complaintsFuel system
3 complaintsEngine
2 complaintsEngine cooling
2 complaintsExterior lighting
1 complaintsSteering
1 complaintsBody and structure
1 complaintsVehicle speed control
1 complaintsVisibility (wipers, defrost, mirrors)
1 complaints
← All problems reported for the 2005 Mercedes-Benz SLK350
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Nov 1, 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