Change Car Turbo Mercedes-Benz SLK

Change Car Turbo

Very technical 5h00–8h00 ~500–800£
Estimated time 5h00–8h00
Estimated labour cost ~500–800£
Difficulty Very technical
Vehicles
SLK 2011-2016 4
  • 200 Petrol (274.920)
  • 250 BlueEFF Petrol (271.861)
  • 250 CDI Diesel (651.980)
  • 300 Petrol (274.920)

What is the role of the Mercedes-Benz SLK turbo?

The turbocharger increases engine power by compressing the intake air, allowing more air (and therefore more fuel) into the combustion chambers. It is driven by exhaust gases spinning a turbine at speeds up to 250,000 rpm. The compressed intake air passes through an intercooler to reduce its temperature before entering the engine.

What are the symptoms of a failing Mercedes-Benz SLK turbo?

Common symptoms include: loss of engine power or boost, excessive exhaust smoke (blue/white for oil burning, black for over-fuelling), whining or whistling noise from the turbo area, engine warning light or turbo fault codes, oil leaks at the turbo housing, increased oil consumption.

What causes Mercedes-Benz SLK turbo failure?

The main causes are: oil starvation (blocked or restricted oil feed lines, low oil level, poor oil quality), foreign object ingestion, excessive exhaust temperature, worn bearings due to high mileage, and contaminated oil. Always investigate and fix the root cause before fitting a replacement turbo.

Can a Mercedes-Benz SLK turbo be reconditioned?

Yes, turbo reconditioning is a common and cost-effective alternative to buying new. A reputable service will disassemble, inspect, replace worn parts, rebalance, and test the unit. Expect to pay 30–60% of the new price.

Is it difficult to change a Mercedes-Benz SLK turbo?

Difficulty level 5/5: very technical. The turbo is connected to both the intake and exhaust systems, requiring numerous disassembly steps. Approximately 5 hours on average for a professional mechanic. Key precautions after fitting: change the engine oil and filter, prime the turbo with oil before starting, allow the turbo to cool down after hard driving by idling for 30 seconds before switching off.

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3 models covered

Model Year Range Engines covered Fuel
SLK 1996-2004 1996-2004 200 Kompressor, -LPG LPG,Petrol (111.958), 230 Kompressor, -LPG LPG,Petrol (111.983), 32 AMG Kompressor Petrol (112.960), 320, -LPG LPG,Petrol (112.947) LPG, Petrol
SLK 2004-2010 2004-2010 200 Kompressor, -LPG LPG,Petrol (271.944), 200 Kompressor, -LPG LPG,Petrol (271.954), 280, -LPG LPG,Petrol (272.942), 350 Petrol (272.969), 350, -LPG LPG,Petrol (272.963), 55 AMG Petrol (113.989), 55 AMG Petrol (113.989) LPG, Petrol
SLK 2011-2016 2011-2016 200 Petrol (274.920), 250 BlueEFF Petrol (271.861), 250 CDI Diesel (651.980), 300 Petrol (274.920), 350 BlueEFF Petrol (276.956), 55 AMG Petrol (152.980) Diesel, Petrol

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Easy 0h30–0h45
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Easy 1h30
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View the service schedule for your SLK →