Change Car Turbo Mercedes-Benz A-Class

Change Car Turbo

Very technical 6h00–24h00 ~600–2400£
Estimated time 6h00–24h00
Estimated labour cost ~600–2400£
Difficulty Very technical
Vehicles
A-Class 1998-2005 4
  • 160 CDI Diesel (668.940)
  • 160 CDI Diesel (668.941)
  • 170 CDI Diesel (668.940)
  • 170 CDI, -L Diesel (668.942)
A-Class 2005-2012 4
  • 160 CDI Diesel (640.942)
  • 180 CDI Diesel (640.940)
  • 200 CDI Diesel (640.941)
  • 200 Turbo Petrol (266.980)
A-Class 2012-2018 15
  • 160 CDI Diesel (607.951 (K9K))
  • 160 Petrol (270.910)
  • 180 CDI Diesel (607.951 (K9K))
  • 180 CDI Diesel (651.901)
  • 180 Petrol (270.910)
  • 200 CDI Diesel (651.901)
  • 200 CDI, -4MATIC Diesel (651.930)
  • 200 Petrol (270.910)
  • 220 4MATIC Petrol (270.920)
  • 220 CDI, -4MATIC Diesel (651.930)
  • 220 D Diesel (651.930)
  • 250, -4MATIC Petrol (270.920)
  • 250, -4MATIC Petrol (270.920)
  • 45 AMG 4MATIC Petrol (133.980)
  • 45 AMG 4MATIC Petrol (133.980)
A-Class 2018-2025 17
  • 160 Petrol (282.914)
  • 160d Diesel (608.915)
  • 180 48V (MHEV),Petrol (282.814)
  • 180 Petrol (282.914)
  • 180d Diesel (608.915 (K9K))
  • 180d Diesel (654.920)
  • 200 48V (MHEV),Petrol (282.814)
  • 200, -4MATIC Petrol (282.914)
  • 200d Diesel (654.920)
  • 220, -4MATIC 48V (MHEV),Petrol (260.920)
  • 220d Diesel (654.920)
  • 250, -4MATIC 48V (MHEV),Petrol (260.920)
  • 250e Electricity,Petrol (282.814)
  • 250e Electricity,Petrol (282.914)
  • 35 AMG, 4-MATIC 48V (MHEV),Petrol (260.920)
  • 45 AMG 4-MATIC+ Petrol (139.980)
  • 45 S AMG 4-MATIC+ Petrol (139.980)
Renew the turbocharger Manual transmission 24h00
Renew the turbocharger Automatic transmission 25h00

What is the role of the Mercedes-Benz A-Class 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 A-Class 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 A-Class 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 A-Class 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 A-Class 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.

View all compatible products →
View your A-Class maintenance plan (keep the A-Class token) →

4 models covered

Model Year Range Engines covered Fuel
A-Class 1998-2005 1998-2005 140, -L, -LPG LPG,Petrol (166.940), 140, -L, -LPG LPG,Petrol (166.960), 160 CDI Diesel (668.940), 160 CDI Diesel (668.941), 160, -L, -LPG LPG,Petrol (166.960), 170 CDI Diesel (668.940), 170 CDI, -L Diesel (668.942), 190, -L, -LPG LPG,Petrol (166.990), 210 Evolution, -L, LPG LPG,… Diesel, LPG, Petrol
A-Class 2005-2012 2005-2012 150, -LPG LPG,Petrol (266.920), 160 CDI Diesel (640.942), 170, -LPG LPG,Petrol (266.940), 180 BlueEFF, -LPG LPG,Petrol (266.940), 180 CDI Diesel (640.940), 200 CDI Diesel (640.941), 200 Turbo Petrol (266.980), 200, -LPG LPG,Petrol (266.960) Diesel, LPG, Petrol
A-Class 2012-2018 2012-2018 160 CDI Diesel (607.951 (K9K)), 160 Petrol (270.910), 180 CDI Diesel (607.951 (K9K)), 180 CDI Diesel (651.901), 180 Petrol (270.910), 200 CDI Diesel (651.901), 200 CDI, -4MATIC Diesel (651.930), 200 Petrol (270.910), 220 4MATIC Petrol (270.920), 220 CDI, -4MATIC Diesel (651.930)… Diesel, Petrol
A-Class 2018-2025 2018-2025 160 Petrol (282.914), 160d Diesel (608.915), 180 48V (MHEV),Petrol (282.814), 180 Petrol (282.914), 180d Diesel (608.915 (K9K)), 180d Diesel (654.920), 200 48V (MHEV),Petrol (282.814), 200, -4MATIC Petrol (282.914), 200, -4MATIC Petrol (282.914), 200d Diesel (654.920), 220, -4MA… 48V (MHEV), Diesel, Electricity, Petrol

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View the service schedule for your A-Class →