Auxiliary Coolant Pump Replacement – BMW B46/B48 Turbo 4 Cyl. Engine
Step 1 - Purchase Parts
Step 2 - Repair Procedure
- Torque coolant pump to engine block mounting bolts to 8 Nm (6 ft-lb).
- Make sure when reinstalling the coolant lines you hear them firmly snap into place.
- Follow the instructions in our article Coolant Flush and Replacement - BMW B46/B48 Turbo 4 Cylinder Engine on refilling and bleeding the coolant system.