Vario roof (VR) diagnosis, functional test

AD77.50-P-3000A

Vario roof (VR) diagnosis, functional test

2.7.97

Vario roof (VR) diagnosis, previous knowledge

AD77.50-P-2000A



Before operating the vario roof, the sun shade in the trunk must be drawn and the trunk lid closed,

Functional test

Scope of test

Operation/requirement

Specified value

Possible cause/remedy

1

Power windows

Ignition starter switch position 1

2

Open side window

Press power window switch down at rear (1st position)

Side window opens while switch is held down

AD77.50-P-5000A

3

Open side window (automatic lowering)

Press power window switch down at rear (beyond 1st position)

Side window opens fully (switch need not be held down)

AD77.50-P-5000A

4

Close side window

Press power window switch down at front

Side window closes while switch is held down

AD77.50-P-5000A

5

Open front side windows from vario roof switch (one-touch function)

Vario roof completely locked

Move vario roof switch to rear briefly

(< 0.5 s) twice in succession and hold in position

Front side windows open while switch is held down

AD77.50-P-5000A

6

Close front side windows from vario roof switch (one-touch function)

Vario roof completely locked

Press vario roof switch forward briefly

(< 0.5 s) twice in succession and hold in position

Front side windows close while switch is held down

AD77.50-P-5000A

7

Vario roof switch indicator lamp

Ignition: ON

Vario roof switch indicator lamp illuminated

AD77.50-P-5000A

8

Open vario roof with vario roof switch

Ignition: ON

Press vario roof switch in "open" direction

Front and rear side windows open

Vario roof released

Trunk lid is raised

Vario roof opens

Trunk lid closes and is locked

Front side windows close

AD77.50-P-5000A

9

Close vario roof with vario roof switch

Press vario roof switch in "close" direction

Front side windows open

Trunk lid is raised

Vario roof closes

Trunk lid closes and is locked

Vario roof is locked

Front and rear side windows close

AD77.50-P-5000A

10

Gong in instrument cluster

Vario roof released

Drive vehicle (> 5 km/h)

Gong sounds

 Gong in instrument cluster can be actuated via HHT

AD77.50-P-5000A