11 11 579 Checking the crankcase for watertightness (N47)
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2016 BMW 328i xDrive, 2016 BMW 328d xDrive, 2015 BMW 328i xDrive, 2015 BMW 328d xDrive, and 2014 BMW 328i xDrive. However, it is still accessible from the selected car via links, so may be relevant.
Special tools required:
Necessary preliminary tasks:
- Remove engine .
- Mount engine on assembly stand
- Remove coolant pump .
- Remove oil filter housing .
- Remove cylinder head .
- Remove all pistons .
- Remove crankshaft .
IMPORTANT:
Pressure test crankcase to maximum 3
bar.
Heat crankcase to 60 °C.
Check for formation of bubbles in a water bath.
Heat crankcase to 60 °C.
Check for formation of bubbles in a water bath.
Mount all special tools 11 8 825 on crankcase.
Place special tool 11 8 891 on crankcase.
Secure special tool in sequence (1 to 10).
Tightening torque: Nut (1 to 10) 8 Nm.
Secure special tool 11 8 821 with screw (1).
Secure special tool 11 8 822 with bolts (3).
Secure special tool 11 8 823 with bolts (2).
IMPORTANT:
Maximum screw length M6x20 risk of damage!
on crankcase.
Use bolts to fasten special tool 11 6 282 .
Tightening torque: screws M6x20 with 8 Nm.
Screw down special 11 6 281 tool on to sealing surface of coolant pump.
Tightening torque: screws with 8 Nm.
IMPORTANT:
Maximum screw length M6x20 risk of damage!
on crankcase.
Release valve cap on compressed air connection.
IMPORTANT:
Pressure test crankcase to maximum 3
bar.
Heat crankcase to 60 °C.
Check for formation of bubbles in a water bath.
Heat crankcase to 60 °C.
Check for formation of bubbles in a water bath.
Assemble engine.