BMW X3 Service & Repair Manual: Replacing heat exchanger

Necessary preliminary work:

• Remove HEATER

IMPORTANT: Before ordering spare parts, determine manufacturer of the installed heater!

Installation note:

Pipes are included in the repair kit! Release screws (1).

Slide rubber grommet (2) with foam seal forward slightly.

Carefully feed pipe holder (3) with pipes (4) past rubber grommet (2).

Installation note:

If necessary, replace rubber grommet (2) and/or foam seal.

Make sure rubber grommet (2) is fitted correctly on pipe holder (3).

If necessary, remove coolant hose (2).

Release screws (3) and remove cover.

NOTE: Diesel version only:

Unfasten plug connection (1) and disconnect.

Withdraw electric auxiliary heater (4) in direction of arrow.

Remove heat exchanger (5) from heater/air conditioner (6).