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Resources for the Repair and Maintenance of your Mercedes-Benz SLK350

Mercedes-Benz SLK350 Models:

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Mercedes-Benz SLK350 Problems

Drive Train -- Verified

Vehicles equipped with a 7-speed automatic transmission may develop a rough shifting condition, most commonly going up from first to second gear and going down from third to second or second to first gear. Our technicians tell us this is due to an internal component failure. Mercedes has released updated parts; the transmission will need to be removed and disassembled to complete the necessary repairs.

Drive Train -- Verified

High mileage or older vehicles commonly develop leaks from the differential seals and/or cover. Our technicians recommend a complete reseal of the differential unit whenever these leaks are repaired.

Drive Train -- Verified

A vibration felt through the center floor of the vehicle can be caused by driveshaft flex discs, which crack and shred, causing excessive driveshaft movement. Not repairing these can cause damage to the driveshaft center support bearing, or, in the worst case scenario, damage to the transmission or differential.

Brakes -- Verified

As a way to increase braking performance, the brake pads and rotors are make of a softer material and may be in need of replacement after approximately 20,000 miles; owners should be vigilant about getting their brakes checked.

Brakes -- Verified

The anti-lock brake system (ABS) modulator assembly may fail due to dirty brake fluid. Our technicians recommend a complete brake system flush every two years in order to help prevent this problem.

Mercedes-Benz SLK350 Recalls (Recent)

Body, Interior & Misc., June 4, 2013

RepairPal Expert Overview:

The passenger seat cushion contains a sensing device (occupant classification system, or OCS) to determine if a child safety seat is in use on that seat. The system is designed to turn off the passenger airbag when the system senses a child safety seat in use. These vehicles are being recalled because the system may not correctly classify a very light weight person and incorrectly disable the passenger airbag. This would increase the risk of personal injury in the event of a crash. Dealers will replace the passenger seat cushion, including the OCS to correct this concern.

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Body, Interior & Misc., October 1, 2012

RepairPal Expert Overview:

These vehicles are equipped with a new type of A/C refrigerant - R1234yf. Testing has determined that escaping R1234yf refrigerant may ignite under specific conditions. A severe frontal crash may rupture one of the air conditioner refrigerant lines, which can result in a gaseous mixture of refrigerant being released into the engine compartment. The resulting fire could spread to additional combustible materials. Dealers will replace the R1234yf refrigerant with R134a (which is the type that had been used previously) along with new refrigerant lines (hoses) designed specifically for R134a.

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Body, Interior & Misc., May 2, 2008

RepairPal Expert Overview:

Transistors used in the front signal acquisition and actuation module (SAM-F) may have been damaged during module assembly. As a result, the module could fail without warning, increasing the risk of a crash. Dealers will inspect and replace the affected modules as necessary. This recall is scheduled to begin on May 2, 2008. The Mercedes-Benz recall number is 2008 030005.

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Electrical & Lights, August 1, 2008

RepairPal Expert Overview:

There is a faulty software calibration that affects several areas including shutting off the fuel supply in a collision. This could cause a fire hazard during an accident. Dealers will reprogram this software. The Mercedes-Benz recall number is 2008 070001. This recall began during August, 2008.

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Mercedes-Benz SLK350 Questions and Answers

Doug Patty, 2005 Mercedes-Benz SLK350, Newport Beach, CA

My engine light goes on but the car runs fine with lots of power. I have checked gas cap and that is secure. No smells no anything. Could it be a malfunction in the light or something to do with...

Doug Patty, 2005 Mercedes-Benz SLK350, Newport Beach, CA

Is it important to have engine light that stays on checked out when car shows no problems what so ever.

T-Mac, 2005 Mercedes-Benz SLK350, Fontana, CA

How do I set the clock in my slk350? Also, is there a button to open the trunk from the inside of the car?

Joel R., 2005 Mercedes-Benz SLK350, Porter, TX

Yes I can smell oil burning coming from under my hood. I can also see small drops around the back side of the valve covers.
You said: Spark plug tube seals and grommets can also leak oil, which can...

gdog107, 2005 Mercedes-Benz SLK350, Decatur, GA

i just recently bought the car n it didnt come with manul i dont know where the trunk button at in the car

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Mercedes-Benz SLK350 Reviews

I've been driving the 2012 SLK350 since late June 2011. Overall, it's a great car. I love its performance and handling. There has been one annoying mechanical deficit though. A month after I took delivery of the vehicle, it started sounding like a helicopter was hovering about 10 feet overhead. Turns out a fuel pump valve was bad. So, after waiting 3 weeks for the part to arrive from Germany, they replaced it. After that, the car ran great. Flawless! That was until September 2012, when once again that sound came back. It's in the shop today, having yet another fuel pump put in. I'm hoping this is not a yearly thing.

An excellent convertable. The hard top convertible works well and provides and excellent hard-top driving during off season driving. The car has been a very good value for me. Gas milage has been about 18-20 MPG around town. Despite being small, the trunk holds two sets of golf clubs (carry bag size) but you cannot also put the top down. My only complaints are that it is a roadster, so it is noisy on the highway but perfect around town. I think the navigation is better in some other cars, it does not have a comprehensive POI dataset. The iPOD connector was expensive and it does not seem to charge my iPOD Nano version 4-5. I also miss that it is a two seat car and I cannot carry friends and family. In summary, if you are looking for a roadster that has a hard-top convertible and head-turning appeal then this car is worth considering.

I have to make a trip almost every month for one or other electrical problem. Fix one, and then another one shows up in 5-10 days. Nothing major, mostly turn signals, fog lights, seat belt sensors.

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