The ESL system malfunction causes either steering lock or ignition switch to fail resulting in a failure to start the vehicle creating safety issues and a failure to reach safe destination. This problem is reported to be an extremely common issue in the Mercedes Benz W204 C-Class models.
2008 Mercedes Benz C350 electrical problems
53 complaints (37% of all complaints for this car). Typical mileage when it fails: 78,270.
- owner complaints
- 53
- of this car's complaints
- 37%
- typical mileage
- 78,270
- crashes
- 0
- recalls
- 0
Which part fails
- Ignition: switch2
- Ignition1
At what mileage
Complaints by mileage at the time of the problem.
0k-25k
25k-50k
50k-75k
75k-100k
100k-125k
125k-150k
150k-175k
175k-200k
200k+
Mercedes Benz C350 electrical problems in other years
Specific symptoms reported on the 2008 Mercedes Benz C350 electrical
Phrases found in the owners' own descriptions, so one complaint can mention several symptoms.
Related recalls
No recalls on record for this model year.
Related investigations
Loss of rear lighting assembly
The Office of Defects Investigation (ODI) opened an investigation based on consumer allegations of loss of rear lighting in model year (MY) 2008-2011 Mercedes Benz C-Class vehicles.Complainants alleged that one or both rear lighting assemblies fail to illuminate (i.e., all lights housed within the assembly extinguish, including the stop, tail, and turn signal functions) or illuminate dimly.In some reports, complainants also alleged that the failure was accompanied by a burning smell emanating from the trunk of the vehicle.When examined, these vehicles showed evidence of overheating at the lighting assembly harness connector, including damaged (blackened) wiring and plastic.The rear lighting failures typically involved one side of the vehicle however in some cases both assemblies failed (although probably not simultaneously).ODI identified 5 fire and one injury allegations during the course of this investigation.Two fires occurred while the vehicles were parked.One originated in the vicinity of the driver?s side light assembly where the fire and associated damage was confined to the trunk area, and the fire self extinguished due to oxygen starvation.As a result of the fire, the vehicle was repurchased by Mercedes and salvaged.The second fire originated on the passenger's side and required fire department response to extinguish; the fire damaged the tail light and surrounding body panels as well as the trunk area and wiring.The vehicle was repaired and returned to service.Two firesoccurred while the vehicle was being driven.In the first instance, the driver detected an odor and pulled over to observe smoking and a small flame at the lighting assembly wiring in the trunk.The owner was able to extinguish the fire before any significant damage occurred.In the second instance, the driver smelled smoke, pulled over, and opened the trunk to find smoke and sparks emanating from the forward facing side of the tail light.The driver was able to extinguish the sparks and drive the vehicle to the dealer. A fifth fire was reported by a fleet manager who observed a vehicle with fire damage originating near one of the tail light assemblies.The injury incident occurred when a technician burned their hand while diagnosing a failed light.The technician touched the tail light wiring which was hot enough to burn him although the injury did not require medical attention.On April 10th, 2014, Mercedes notified ODI that it would conduct a safety recall to remedy the rear light assemblies in approximately 252,867 MY 2008 - 2011 C-Class vehicles including the C300, C350 and C63 AMG models.Each rear light assembly has separate bulbs that act as brake, tail lamp, backup and turn signal indicators.The bulbs are mounted in a bulb carrier which uses a common electrical ground circuit at the harness connection.According to Mercedes, oxidation due to the use of dissimilar metals on the harness and bulb carrier electrical connectors can result in increased resistance and a subsequent dimming or loss of lighting function.The heat caused by the increased resistance/oxidation can also lead to the melting of the surrounding plastic, or in some cases, present a fire hazard.In conducting recall 14V‑171, Mercedes dealers will inspect the left and right bulb carriers and harness connectors for the presence of dissimilar electrical connectors and/or evidence of related thermal damage; affected bulb carriers and/or harness connectors will be replaced free of charge.Mercedes notes that service replacement bulb carriers produced from January 2012 eliminate the dissimilar metal condition and that these bulb carriers will not requ
EA13008
Loss of rear tail light functionality
ODI initially received 21 reports of rear light assembly failure due to a melted electrical connector or housing.Since opening the initial , ODI has received a total of 114 complaints reflecting an ongoing and increasing trend.In each report, one or both rear light assemblies fail completely (i.e., all lights housed within the assembly extinguish, including the stop, tail, and turn signal functions) when the electrical ground connection is compromised as a result of high resistance and subsequent thermal over-heating.According to Mercedes-Benz, the over-heating of the ground wire is caused by corrosion between the connectors in the ground circuit to the tail light.ODI is aware of a total of 5 reports alleging fire including one injury allegation as a result of this issue.Analysis of subject vehicle complaint data indicates an increased likelihood of failure as the vehicles age.As a result of the evidence presented, this investigation has been upgraded to EA13-008.
PE13026
What 2008 Mercedes Benz C350 owners say
Most recent owner complaints, unedited.
All of a sudden, the car would not start and inserting the key and turning doesn't do anything. Turns out that like many other folks, the Electronic Steering Lock module is faulty and preventing the car from starting. Found out that only the dealer can fix it and mercedes provides the replacement part. The cost is unaffordable at $2200 from the dealer and the part is back ordered and won't be available for approximately 2 months. This is completely unacceptable and mercedes should prioritize and fix this issue as a safety issue with a recall since it completely makes the car non-driveable and nobody but the dealer can fix this, which allows the dealer to charge any amount they like.
The contact owns a 2008 Mercedes-Benz C350. The contact stated that after the vehicle was turned off, she attempted to restart the vehicle, but the engine failed to turn over. The contact stated that the next day the vehicle started; however, while driving at an undisclosed speed, the vehicle stalled. The contact stated that several unknown warning lights illuminated, and the speedometer started to malfunction. The vehicle was towed to the dealer; however, the contact was unsure if the vehicle was diagnosed. Additionally, the contact stated that on a separate occasion while driving at an undisclosed speed, she noticed that water had started to leak from the sun visor. The contact also heard water moving around on the floorboard. The vehicle was not diagnosed. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 166,000.
After a few years of driving the vehicle the following stopped working causing difficulty driving the vehicle ABS/eps inoperative cruise control inoperative
Tl* the contact owns a 2008 mercedes benz c350. The contact stated that while operating the vehicle, several electrical failures had occurred and on several occasions and the vehicle would not start. The contact replaced the fuel pump however, the failure continued. It was later discovered the cause of the failure was due to a faulty fuse. No further information was available. Additionally, the passenger's side headlight and windshield wipers had stopped working and the SRS warning light was illuminated. The cause of the failures were not determined. The local dealer plaza mercedes benz located at 11910 olive blvd, creve coeur, mo 63141 and the manufacturer were notified of the failures. The failure mileage was 150,000.
On sunday, june 27, upon returning to my car I discovered that the key would not disengage the steering column lock to allow me to turn the ignition switch to the on position or steer the vehicle. In addition, the gearshift could not be dislodged from the park position. I contacted aaa. A test of battery revealed that it was fully charged. I was able to manually disengage the gear shift and place the car in neutral, however, the car was unable to be loaded on to the flatbed tow-truck, as the front wheels were locked at an angle and I was parked in parking space, between the sidewalk to my front and right side and a car to my left. I was forced to leave the vehicle and find an alternative means of getting home. Five days and numerous attempts later, aaa was finally able to retrieve my vehicle. Conversation with mechanics at mb dealership as well as mb trained private mechanic identified problem as defective electronic ignition switch (eis/ ezs) and electronic steering lock (esl/ elv). Contacted mbusa corporate office and was informed that the financial responsibility for the repair (approximately $1,600) was mine, since, despite hundreds of complaints regarding similar mechanical issue, there is not a recall
Tl* the contact owns a 2008 mercedes benz c350. While the vehicle was parked in the driveway, a family member notified the contact that there was smoke coming out of the trunk. The contact opened the trunk and noticed that the passenger side was in flames around the tail light assembly. The fire department was present, but no report was filed. The tail light assemblies were replaced approximately four years ago per an unknown recall by mercedes-benz of south orlando in orlando, florida. However, the dealer was not contacted for the recent failure. The manufacturer was not contacted. The approximate failure mileage was 113,000.
Vehicle failed to start/crank after only 28,000 miles. Cause was a failed esl (electronic steering lock) part of the electronic theft system that ties with the electronic ignition switch. The failure of this part disables the car and is unusable. This issue with this model, w204 - c-class 300/350, has an abnormal amount of reports via mercedes benz internet forums about this very failure. 13 pages worth on one. Given the low amount of miles on my vehicle, the failure rate seems unreasonably high. The part failure has nothing to do with the use/abuse of the vehicle.
Esl failed in unlocked position, car wont start.
Electronic steering lock- car was running fine no issues parked the car went back out to start less than an hour after parking and got nothing dash came on no radio,no windows,no release from park, and steering wheel is locked and will not unlock. Left stranded have to have a tow to closest mercedes benz dealer 45 miles away....estimated cost after 310.80 tow 1200 to 2000
Questions about the 2008 Mercedes Benz C350 electrical
Does the 2008 Mercedes Benz C350 have electrical problems?
Owners have filed 53 complaints about the electrical of the 2008 Mercedes Benz C350, 37% of all its complaints, more than any other problem.
At what mileage do 2008 Mercedes Benz C350 electrical problems start?
The typical (median) mileage in owner complaints is 78,270 miles.
Was there a recall on the 2008 Mercedes Benz C350 electrical?
There is no recall for this problem on this model year.
What year does the Mercedes Benz C350 have the most electrical problems?
The Mercedes Benz C350 model years with the most electrical complaints are 2008 (53 complaints) and 2009 (16 complaints).
Other 2008 Mercedes Benz C350 problems
Airbags 52Steering 32Lights 31Engine 7Visibility 3Body 2Fuel system 2Transmission 2Acceleration 1Driver assistance 1Seat belts 1Suspension 1Tires 1Wheels 1
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