Mercedes-Benz SLK Mercedes-Benz SLK

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Mercedes-Benz SLK repairs by problem area

Engine (35%)

Transmission and Drivetrain (6%)

Brakes and Traction Control (8%)

Suspension and Steering (11%)

Electrical and Air Conditioning (23%)

Paint, Rust, Leaks, Rattles, and Trim (9%)

Other (6%)

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Chart based on 103 repairs.
See TSBs and recalls for the Mercedes-Benz SLK.

Mercedes-Benz SLK electrical repair cost distribution

$2500+ (0%)

$1000 - $2499 (13%)

$500 - $999 (13%)

$100 - $499 (35%)

< $100 (39%)

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Chart based on 23 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

2016 Mercedes-Benz SLK 2dr Hardtop conv.

turbocharged 241hp 2.0L I4 9-speed shiftable automatic RWD

22000 mi Tail lights control unit was broken. 
21000 mi Rear lights control unit went off completely. Not a single light was able to go on. Dealer replaced the unit under warranty, but waiting for the part to be shipped from German took more than a week. 

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2009 Mercedes-Benz SLK 2dr Hardtop conv.

300-horsepower 3.5L V6 7-speed shiftable automatic RWD

9000 mi Replace Command Head unit under warranty. Screen quit working although audio still worked 

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2008 Mercedes-Benz SLK 2dr Hardtop conv.

228-horsepower 3.0L V6 7-speed shiftable automatic RWD

24000 mi Electrical, other than above, repair 

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2007 Mercedes-Benz SLK 2dr Hardtop conv.

268-horsepower 3.5L V6 7-speed shiftable automatic RWD

51000 mi

US $146
Replaced low beam bulb on passenger side. Replaced the trunk struts. 

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2006 Mercedes-Benz SLK 2dr Hardtop conv.

355-horsepower 5.4L V8 7-speed shiftable automatic RWD

55000 mi

US $300
Recharge AC, test for leaks and deodorize system. 

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2005 Mercedes-Benz SLK 2dr Hardtop conv.

268-horsepower 3.5L V6 7-speed shiftable automatic RWD

30000 mi fixed under warranty right rear taillight bulb 
69500 mi the wiring harness inside the trunk had damage because of the trunk hinge (bad design). This prevented the trunk lock from opening and also shut down brake/reverse/rear fog lights from operating. 
72000 mi

US $700
the left front blinker stops working even after the bulb was replaced several times during and after warranty. 
74000 mi

US $1200
AC was blowing hot air (not cooling). Service tech recharged AC and found it was still not cooling, replaced compression, coil, compressor grill and a bunch of other parts. 
76000 mi

US $300
Instrument Cluster stopped working. Check Engine Light. Diagnosis said electronic key is faulty. Replaced key and erased code. 
81000 mi

US $600
thermostat was causing check engine light. had to be diagnosed, and replaced. 
47000 mi

US $2300
Replace compressor. Navigation system DVD reader failed. 
16213 mi driver side heating seat non-function -- seat heater replaced 

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2005 Mercedes-Benz SLK 2dr Hardtop conv.

268-horsepower 3.5L V6 6-speed manual RWD

107600 mi

US $500
auto wiper not funcitnoing 
57000 mi

US $100
Replaced air quality sensor and fan motor regulator 

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2005 Mercedes-Benz SLK 2dr Hardtop conv.

59000 mi

£290
Worn blower motor for ventilation.replaced in 30-40 mins. All sorted. Cost is in gbp. 

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2003 Mercedes-Benz SLK 2dr Hardtop conv.

supercharged 192hp 2.3L I4 5-speed shiftable automatic RWD

191000 mi

US $120
Replaced the starter 
202000 mi

US $300
The vacuum pump for the Central locking and security system went out replaced with salvage part PSE Pump 

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2003 Mercedes-Benz SLK 2dr Hardtop conv.

215-horsepower 3.2L V6 6-speed manual RWD

58 mi retired failed solder joints on power connector in K40 relay panel (known weakness) 

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2002 Mercedes-Benz SLK 2dr Hardtop conv.

supercharged 349hp 3.2L V6 5-speed shiftable automatic RWD

48000 mi

US $150
Replaced 10 year old battery. 

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2001 Mercedes-Benz SLK 2dr Hardtop conv.

215-horsepower 3.2L V6 6-speed manual RWD

87792 mi Auto Dimming Rear view mirror leaked and was inoperable. Removed and replaced mirror. 

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2001 Mercedes-Benz SLK 2dr Hardtop conv.

215-horsepower 3.2L V6 5-speed shiftable automatic RWD

130200 mi

C $1900
Seats not moving - fault not found 

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Mercedes-Benz SLK Electrical Problems

See our lemon odds and nada odds page to see vehicles with no repairs or vehicles with more than three repairs. To see how frequently Mercedes-Benz SLK problems occur, check out our car reliability stats.