Central Air Vent In the Facia, Changing/Adjusting

To Remove
1 Remove the door trim seals from the A pillars and remove the trim from the A pillars.
2 Remove the loudspeaker grilles.
3 Remove the screws from the upper part of the facia. Lift up the front edge of the facia and pull it in toward the cabin so that the clips on the rear edge come loose.
4 Press the facia vent and air duct towards the cabin.
5 Detach the rear edge of the air duct by lifting it up. Remove air duct.
6 Detach the facia vent securing lugs and lift out the nozzle from behind.







Adjusting
In certain cars with chassis number up to N 1036712, the damper can be closed by the air flow. This is remedied using Service kit part number 86 05 461.

7 Remove the damper from the facia vent.
8 Remove the circlip and washer from the control shaft.
9 Press the control shaft out of the air vent and remove the crinkle washers from the gear. Use utility pliers if necessary.
These washers should not be reinstalled.
10 Install the O-ring to the control shaft and place it behind the knob.
11 Insert the control shaft a short distance into the vent and install the flat washer and gear.
12 Make sure that the damper's intermediate shaft is in position. Make sure that the knob is within the control range and press the control shaft into position.
13 Place washer and retaining ring on control shaft.
14 Reinstall the damper and check that its position corresponds to the indication on the front of the vent.

To Install
15 Make sure that the air duct lugs interlock when installation.