17 22 010 Removing and installing/replacing heat exchanger for automatic transmission

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2008 BMW Z4, 2007 BMW Z4, 2006 BMW Z4, 2005 BMW Z4, and 2004 BMW Z4. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

17 0 030

Necessary preliminary tasks:

After completing this operation, check fluid level in automatic transmission. See LUBRICATION .
Drain off and top up coolant. See BMW Operating Fluids

Recycling

Catch and dispose of escaping transmission fluid.

Observe country-specific waste-disposal regulations.

Illustrations show E46.

Unlock lines (1 and 2) with special tool 17 0 030 and detach.

Catch and dispose of escaping transmission fluid.

Fig 1: Releasing Lines With Special Tool

Courtesy of BMW OF NORTH AMERICA, INC.

Illustrations show E46.

Pull lock (1) upwards and detach heat exchanger towards rear.

Installation:

Press lock (1) downwards before pushing on heat exchanger.

The lock must snap audibly into place when the heat exchanger is forced on.

Fig 2: Detaching Heat Exchanger

Courtesy of BMW OF NORTH AMERICA, INC.

Check sealing rings (1), replace if necessary.

Fig 3: Locating Sealing Ring

Courtesy of BMW OF NORTH AMERICA, INC.