ad7730p3000b

Roadster soft top (RST) diagnosis operational check

Type ad · topic 77.30 · version 0100 · 2003-06-12

Applies to: MODEL 129 up to 31.12.93

Where it sits

Function group 3 Body › 77 Sliding roof, soft top, top attachments › 77.30 Vario roof, soft top - complete — Series 129

AD77.30-P-3000B

Roadster soft top (RST) diagnosis operational check

27.11.97

MODEL 129 up to 31.12.93

Danger!

Risk of injury due to getting jammed or crushed, in extreme cases due to limbs being severed by coming into contact with the mechanical systems

Keep parts of the body or limbs out of the range of travel of mechanical systems when parts are moving.

AS00.00-Z-0009-01A

Roadster soft top (RST) diagnosis, previous knowledge

AD77.30-P-2000B

Function check

Scope of test

Operation/Requirement

Specified value

Possible cause/Remedy

1

Power soft top switch indicator lamp

Ignition: ON

Indicator lamp in power soft top switch must come on once briefly

Power soft top switch

Cable open-circuit

Control module

2

Hardtop safety check

Ignition: ON

After a period of > 10 seconds press power soft top switch towards "open" for approx. 10 seconds

Hardtop must not unlock

Power soft top control module

ra77001290450x

RA77-0450

3

Locking hardtop

Hardtop fitted (unlocked).

Ignition: ON

Press power soft top switch towards "close"

Locking starts immediately

Indicator lamp in power soft top switch goes out when locking is complete

AD77.30-P-5000B

Troubleshooting step 1

4

Unlock hardtop

Ignition: ON

Press power soft top switch towards "open" within 10 seconds

After 2-4 seconds unlocking starts at front, then at rear

AD77.30-P-5000B

Troubleshooting step 1

5

Extending roll bar with RB switch (manual operation)

Ignition: ON

Press RB switch (manual operation) towards "extend"

Roll bar is extended

AD77.30-P-5000B

Troubleshooting step 5

6

Closing roadster soft top with power soft top switch

Ignition: ON

Hardtop removed

Press power soft top switch towards "close"

Roll bar is retracted, side windows open, soft top closes, roll bar is extended, side windows close

AD77.30-P-5000B

Troubleshooting steps 10-19

7

Opening roadster soft top with power soft top switch

Ignition: ON

Roll bar extended

Press power soft top switch towards "open"

Roll bar is retracted, side windows open, soft top opens, roll bar is extended, side windows close

AD77.30-P-5000B

Troubleshooting steps 20-29

8

Retracting roll bar with RB switch (manual operation)

Ignition: ON
Press RB switch (manual operation) towards "retract"

Roll bar is retracted

AD77.30-P-5000B

Troubleshooting step 7

9

Gong in overhead control panel

Soft top compartment cover unlocked

Drive vehicle for a short distance

Gong in overhead control panel should sound

AD77.30-P-5000B

Troubleshooting steps
3, 4

10

Convenience closing of side windows

Side windows open

Lock vehicle with key for driver's door, front passenger's door and trunk lid lock, keep pressed down (trunk lid lock in 60° position)

Side windows close

AD77.30-P-5000B

Troubleshooting step 32

Referenced documents