64 12 120 Removing and installing/replacing intake muffler for independent/auxiliary heater

WARNING: This page is about a different car, the 2010 BMW 535xi, 2009 BMW 535xi, and 2008 BMW 535xi. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary tasks:

Disconnect plug connections (1) and (2).

IMPORTANT: To avoid damaging the independent heater, it is absolutely essential to adhere to the following connecting sequence for the plug connections during installation:

Plug connection (1)
Plug connection (2)

Release screws (3).

Fold independent heater (4) in direction of arrow to one side.

Installation note:

Make sure exhaust pipe of independent heater (4) is correctly seated in muffler (5).

Fig 1: Identifying Plug Connection And Independent Heater

Courtesy of BMW OF NORTH AMERICA, INC.

Detach cable strap (1).

Release spring clip (2) and detach corrugated tube from independent/auxiliary heater.

Remove intake muffler for independent/auxiliary heater (3).

Fig 2: Identifying Spring Clip, Cable Strap And Muffler

Courtesy of BMW OF NORTH AMERICA, INC.