Component Tests and General Diagnostics

54 34 001 - Checking function of EH convertible top





Carefully close convertible top until rotary latch (1) has retracted by approx. 1/3 into striker.
Rotary latch (1) and journal (2) must close silently.
If necessary, adjust convertible top Adjustments.
The convertible top is centered by the journal (2) as it retracts into the guide.
Close convertible top, open and then close again.
Check all line connections for fluid leaks.
If necessary, check fluid level .





Function description (open/close):
Opening and closing of convertible top is only possible:
- when the side windows are slightly lowered
- when the rear window is completely lowered
- when the convertible top compartment base is lowered
- speed must be under 30 km/h
- rear lid must be closed
- outside temperature is between -10 °C and +80 °C
- hydraulic pump motor ≤90 °C
- from ignition lock position "R" (radio setting)
- while control switch in instrument panel is pressed





In event of function problems:
- Check ambient conditions (e.g. convertible top compartment base, rear lid, rear window etc.)
- Perform diagnosis on convertible top (mechanical components, hydraulic components, sensors etc.)
- Perform emergency actuation