17 22 010 Removing and installing or replacing heat exchanger for automatic transmission (N52, N43)

WARNING: This page does not describe the selected car, but rather 11 other vehicles, including the 2008 BMW 328xi, 2008 BMW 328i, 2008 BMW 323i, 2007 BMW 328xi, and 2007 BMW 328i. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

17 0 030

Necessary preliminary tasks:

Recycling

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

Courtesy of BMW OF NORTH AMERICA, INC.

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

Fig 2: Unlocking Heat Exchanger Hydraulic Lines With Special Tool (17 0 030)

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Check fluid level in automatic transmission, refer to 4.0 CHECKING TRANSMISSION FLUID LEVEL .