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Mercedes-Benz SLK-Class SLK 200 Kompressor common faults.

2000–2004, convertible, petrol, 163 HP.

The fault list covers: M111E20MLEVO engine, MB7226 transmission.

What you save stays on this device only. My saves

1 fault write-ups. Important. No recall on the list.

If you know the year, pick it. Faults for other years drop out of the list.

Before you buy

Known faults

1 important faults

5G-Tronic (722.6): control unit in oil, coolant in the ATF

expensive

The Mercedes 5 speed 722.6 automatic (5G-Tronic / NAG1) has three faults that also recur on the used market: (1) the control electronics sit inside the gearbox housing, and a leaking connector lets oil onto the electronics; (2) cooling faults around 2003 (and later) can let antifreeze into the ATF, which shortens its life; (3) wear of the torque converter lock-up clutch contaminates the valve body and causes jerky shifts.

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The early cars (1995 to 2001) had planetary gear and freewheel wear; after 1998 to 2001 the design improved, and on the used market the W203/W211/W220 era is the typical find.

between 120,000 and 250,000 km

What to check

  • Try it cold and warm: jerking or delayed shifts are suspect
  • Look at the colour and smell of the ATF: burnt oil points to wear, and a "milky" emulsion means antifreeze in the ATF
  • Ask for a fault code read on the gearbox controller
2 more steps in the write-up

Checklist

Mercedes-Benz SLK-Class SLK 200 Kompressor

First what you would check on any car. Then the faults of this model.

Before you buy

Checklist

The printed sheet starts with what you would check on any car. What you tick stays on this device only.

On every car

Ask the owner

Faults of this model

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Engine and transmission

M111E20MLEVO

120 kW (163 HP) · unknown

MB7226 · 5G-Tronic, longitudinal (Mercedes 722.6 / NAG1)

automatic · 5 speed

Torque limit600 Nm
MakerMercedes-Benz

We built the code from the model and the gear count. The factory sheet does not state it.

Variant data

What is in this version

Factory data

Trim
SLK 200 Kompressor
Body
convertible
Fuel
petrol
Transmission
automatic
Engine size
1998 cc
Power
120 kW (163 HP)
Drive
RWD
Production
2000–2004

Factory service interval

The manufacturer specifies this for this version. Of the mileage and the time, the one that comes first is the one that counts.

  • Air filter

    • 60,000 km or 4 years

  • Cabin (pollen) filter

    • 30,000 km or 2 years

  • Brake fluid change

    • first: 3 years, then 2 years(first change at 3 years, then every two years)
All R170 versions

Information, not an expert opinion

We write the descriptions, and we put the source next to them. A person reviews them before they go out. They are still information, not a technical expert opinion.

  • A fault on the list does not mean the car you are looking at has it.
  • A fault missing from the list does not mean the model is fault-free. Write-ups are made model by model. Not all of them are done.
  • You decide whether to buy. This is no substitute for an inspection. That needs a workshop and a history check.
Details in the terms