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Change Car Water Pump

Easy 1h30–7h00 ~150–700£
Estimated time 1h30–7h00
Estimated labour cost ~150–700£
Difficulty Easy

What is the function of a BMW X4 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 BMW X4 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 BMW X4 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.

2 models covered

Model Year Range Engines covered Fuel
X4 2014-2018 2014-2018 M40i Petrol (N55B30A), xDrive 20d Diesel (B47D20A), xDrive 20d M Performance Diesel (B47D20A), xDrive 20i Petrol (N20B20A), xDrive 28i Petrol (N20B20A), xDrive 30d Diesel (N57D30A), xDrive 30d Diesel (N57D30A), xDrive 30d M Performance Diesel (N57D30A), xDrive 35d Diesel (N57D30… Diesel, Petrol
X4 2018-2025 2018-2025 M Competition Petrol (S58B30A), M Petrol (S58B30A), M40d Diesel (B57D30B), M40d mHev 48V (MHEV),Diesel (B57D30B+JA1), M40i mHEV 48V (MHEV),Petrol (B58B30B), M40i Petrol (B58B30A), M40i Petrol (B58B30B), xDrive 20d Bi-Turbo Diesel (B47D20B), xDrive 20d Bi-Turbo Diesel (B47D20B), … 48V (MHEV), Diesel, Petrol