17 22 010 Removing and installing/replacing heat exchanger for automatic transmission (N43, N52, N52K): Recycling

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2012 BMW 328xi, 2012 BMW 328i, 2011 BMW 328xi, 2011 BMW 328i, and 2010 BMW 328xi. However, it is still accessible from the selected car via links, so may be relevant.

Catch and dispose of drained coolant.

Transmission fluid emerges when oil lines are detached from heat exchanger.

Catch and dispose of escaping transmission fluid.

Observe country-specific waste-disposal regulations.

Release and disconnect coolant hoses (1).

Release screw.

NOTE: For N43: The front axle subframe is removed for clearer illustration.

Fig 1: Identifying Coolant Hoses With Mounting Screw

Courtesy of BMW OF NORTH AMERICA, INC.

Unlock and disconnect hydraulic lines (1) from heat exchanger with special tool 17 0 030 .

Fig 2: Disconnecting Hydraulic Lines From Heat Exchanger Using Special Tool (17 0 030)

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: After completing work, check oil level in automatic transmission,

Reassemble the vehicle.