Change Car Water Pump Mercedes-Benz CLS

Change Car Water Pump

Easy 2h00–6h00 ~200–600£
Estimated time 2h00–6h00
Estimated labour cost ~200–600£
Difficulty Easy
Renew the coolant pump drive belt 3h00
Renew the coolant pump Air suspension, With area-view camera 22h00
Renew the coolant pump Standard suspension, Without area-view camera 21h00
Renew the coolant pump Air suspension, Without area-view camera 21h00
Renew the coolant pump Standard suspension, With area-view camera 21h00

What is the function of a Mercedes-Benz CLS water pump?

The water pump circulates the coolant through the engine and radiators. Together with the thermostat, it maintains the engine within its operating temperature range. Most engines have a mechanical water pump driven by the timing belt or an accessory belt.

When should you change the Mercedes-Benz CLS water pump?

If the water pump is driven by the timing belt, it is strongly recommended to replace it at the same time as the timing belt kit. Signs of failure include: coolant leak from the pump weep hole, grinding or whining noise, engine overheating.

Is it difficult to change the Mercedes-Benz CLS water pump?

Difficulty level 2/5: technically easy if replaced as part of a timing belt kit change. If replaced independently, the timing belt must be removed and refitted, requiring engine timing tools.

View all compatible products →
View your CLS maintenance plan (keep the CLS token) →

3 models covered

Model Year Range Engines covered Fuel
CLS 2005-2011 2005-2011 280 Petrol (272.943), 320 CDI Diesel (642.920), 350 CDI Diesel (642.920), 350 CGi Petrol (272.985), 350, -LPG LPG,Petrol (272.964), 500, -LPG LPG,Petrol (113.967), 500/550 Petrol (273.960), 55 AMG V8 Kompressor Petrol (113.990), 63 AMG Petrol (156.983) Diesel, LPG, Petrol
CLS 2010-2017 2010-2017 220 BlueTEC, -T Diesel (651.924), 250 BlueTEC, -4MATIC Diesel (651.924), 250 CDI BlueEFF Diesel (651.924), 350 BlueEFF Petrol (276.952), 350 BlueTEC 4MATIC Diesel (642.858), 350 BlueTEC 4MATIC Diesel (642.858), 350 BlueTEC Diesel (642.852), 350 CDI 4MATIC Diesel (642.858), 350 C… Diesel, Petrol
CLS 2018-2023 2018-2023 300 d Diesel (654.920), 350 EQ Boost, -4MATIC 48V (MHEV),Petrol (264.920), 350d, -4MATIC Diesel (656.929), 400d 4MATIC Diesel (656.929), 450 EQ Boost, -4MATIC 48V (MHEV),Petrol (256.930), 53 AMG 4MATIC 48V (MHEV),Petrol (256.930) 48V (MHEV), Diesel, Petrol

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Easy 0h45–3h00
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Intermediate 1h30–2h00
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View the service schedule for your CLS →