hardly worth mentioning
Crashes / Fires:
0 / 1
Injuries / Deaths:
0 / 0
Average Mileage:
60,249 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2004 Mercedes-Benz SLK230 electrical problems

electrical problem

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2004 Mercedes-Benz SLK230 Owner Comments

problem #5

Jul 232013


  • 160,000 miles


The contact owns a 2004 Mercedes Benz Slk230. The contact stated that while at a light, the ABS warning light illuminated. The vehicle was not repaired and the manufacturer was notified. The contact also stated that her vehicle was previously repaired under a manufacturer's recall pertaining to the same issue. The approximate failure mileage was 160,000.

- Shreveport , LA, USA

problem #4

Aug 122010


  • 33,243 miles
The contact owns a 2004 Mercedes Benz S500. While driving 65 mph he started to smell an electrical fire and continued to drive to his destination. After arriving to his destination he noticed that everything electrical in the rear of the vehicle was no longer working. The vehicle was towed to an authorized dealer. The dealer advised him that the drain hole for the air conditioner had filled the floor board with water. The dealer replaced the transponder module and the fuse box since the transponder melted during the failure. The failure mileage was 33,243 and the current mileage was 33,300.

- Naples, FL, USA

problem #3

Jun 252010

SLK230 4-cyl

  • 66,180 miles
My black Mercedes 2004, 230slk kompressor, L4, 2.4L, supercharged. VIN [xxx] had the engine control module me-sfi malfunction indicator lamp "check engine light" came on and was diagnosed at the beverly hills Mercedes Benz dealership with misfiring in the engine (due to the camshaft solenoid and the mass alrflow senor (O2 senor) was damaged, with a major oil leak. I believe that oil has leaked into the mass air flow senor from wicking. The service department replaced the solenoid 111-051-01-77-05 and starter line 271-150-27--33, plug 111-997-01-86-05 and cable tie 002-997-24-90, but not the closing cover 271-051-00-32 which is part of the recall. A electronic diagnostic was performed after the repair was made with a major oil leak present and the air flow senor defective. I doubt that they correctly fixed the recall as the oil leak is from the same area. Mass air flow sensor should be added to the recall, as the camshaft solenoid is leaking oil into the mass air flow senor. The me-sfi needs to be added, as the light will not turn off without the permanent and registered faults being erased even after the repair is made, thereby depreciating the value of the car. Information redacted pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6).

- Los Angeles, CA, USA

problem #2

May 172008


  • 37,823 miles
A complete shutdown of the electrical system occurred after a rain. As a result I am unable to drive the car. Mercedes authorized mechanic cites "air intake at blower intake area was inverted at installation from the factory". the car is in process of being repaired. A complete overhaul of the electrical system will have to be performed. The Mercedes dealer calls it "water intrusion".

- Washington, DC, USA

problem #1

May 192004


  • 4,000 miles
While driving vehicle lost power. The engine continued running, but there was no power brake or power steering. Vehicle was towed to the dealership, and had been there for 3 weeks, but they could not identify the cause of the failure. A diagnostic test was performed, but no failure code was found. Dealership was awaiting a factory representative to inspect the vehicle. This problem could be attributed to an electrical failure.

- Moscow, PA, USA

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