Removal:

• Turn off the ignition and all electricity consumers.

Vehicles without access and start authorisation system

• Remove ignition key, if fitted.

Vehicles with access and start authorisation system

• Store ignition key outside the vehicle to prevent the ignition from being switched on unintentionally.

Continued for all vehicles

• Disconnect battery.
• Remove heater and air conditioner unit.
• Remove the coolant pipes at the heat exchanger.
• Unplug the connector at the fresh air and air recirculation flap control motor and lay bare the wiring harness.
• Remove bolts -2-
• Release mounting flanges -1- and -3-.
• Swivel the air distribution housing -4- to the rear -arrow- and disengage.

Installing

Install in reverse order of removal; note the following.

Note Even minute leakage at the tongue-and-groove joint between the air distribution housing and the evaporator housing can lead to whistling noise as a result of escaping air. For this reason, lubricate the connection points lightly with silicone grease or similar to completely seal the connection points. For silicone grease.