2005 Mercedes Benz SLK350 Problems, Complaints & Recalls

Source: NHTSA · Updated Aug 29, 2025 · 21 owner complaints analyzed

Compared with other SLK350 years
Far more complaints than other years 1st of 10 for complaints
Safety recalls
None on file
NHTSA crash rating
Not rated

Owners have filed 21 complaints with NHTSA about the 2005 Mercedes Benz SLK350. That is the most of any SLK350 model year in the database (10 years). The most reported problem area is power train (6 complaints, 29%), typically at around 45,000 miles. Complaints mention 2 crashes, 1 fire, 4 injuries. There are no safety recalls on file for this model year.

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

Compare with another car

Most common 2005 Mercedes Benz SLK350 problems

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

Power Train6 · ~45,000 mi
Unknown or Other6 · ~160,000 mi
Service Brakes5 · ~160,000 mi
Suspension5
Electrical System2 · ~97,500 mi
Engine2 · ~67,501 mi
Engine and Engine Cooling2 · ~54,426 mi
Fuel/propulsion System2 · ~53,000 mi
Exterior Lighting1
Fuel System, Gasoline1 · ~56,851 mi
Problem areaComplaintsShareMedian milesOwners mention mostTypical repair cost
Power Train629%45,000——
Unknown or Other629%160,000——
Service Brakes524%160,000——
Suspension524%———
Electrical System210%97,500——
Engine210%67,501——
Engine and Engine Cooling210%54,426——
Fuel/propulsion System210%53,000——
Exterior Lighting15%———
Fuel System, Gasoline15%56,851——
Steering15%35,000——
Structure15%———
Vehicle Speed Control15%45,000——
Visibility/wiper15%———

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

Complaints by year received

Peak: 2023, with 5 complaints
2007: 2200722009: 1200912011: 1201112012: 1201212014: 2201422015: 1201512017: 1201712018: 1201812020: 2202022022: 1202212023: 5202352024: 2202422025: 120251

n = 21 complaints · Source: NHTSA

2005 Mercedes Benz SLK350 recalls (0)

No safety recalls are on file for the 2005 Mercedes Benz SLK350.

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 contact owns a 2005 Mercedes-Benz SLK-350. The contact stated that while driving at an undisclosed speed, the brake pedal was depressed; however, the vehicle failed to stop as intended. The contact stated that the vehicle eventually came to a rolling stop on the side of the road. In addition…

Service Brakes · received Aug 29, 2025 · NHTSA complaint 11683949

The brake lines are rusted from the rear sub Frame that was rusted And caused an accident. They told me the sub frame was the only item covered but that they could only bolt it and not weld if and then the exhaust and brake lines (rusted too bad to describe) weren’t covered and since I couldn’t…

Service Brakes · received Aug 13, 2024 · NHTSA complaint 11608172

the conductor plate along with its speed sensor is faulty. Luckily I just exit the highway, the transmission just stopped working, can't drive forward or reverse and when I apply gas on either D or R, just the RPM speed up as if the car is in neutral. I was stranded on the middle of the road. this…

Power Train · received Jun 3, 2024 · NHTSA complaint 11592159

transmission lines popping off popped off at 60 miles per hour tensed me up it stared smoking pushed the safety hazzard lights on and was able to limp it off the highway its happened 3 times after i repaired them afraid to even drive it now.no no no

Unknown or Other · received Oct 7, 2023 · NHTSA complaint 11548815

As i was driving (on a bridge) the convertible top/roof gushed and dumped an incredible amount of hydraulic fluid/oil right in my face unexpectedly! This came out of the blue. I had just raised it since it began to rain. The combination of raining weather and being on a one lane bridge and then…

Visibility/wiper · received Sep 25, 2023 · NHTSA complaint 11546292

Other Mercedes Benz SLK350 years

2006 SLK350 →

See all Mercedes Benz SLK350 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 2005 Mercedes Benz SLK350?

Owners most often report power train, unknown or other, service brakes problems. The top one, power train, accounts for 6 complaints.

Was there a recall on the 2005 Mercedes Benz SLK350?

No safety recalls are on file for this model year.

Was the 2005 Mercedes Benz SLK350 a good year?

Complaint data can't fully answer that, because counts aren't adjusted for sales. Compared with other SLK350 model years, the 2005 has far more complaints than most years. Always get a pre-purchase inspection and check the VIN for open recalls.