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. | |
Roadster soft top (RST) diagnosis, previous knowledge | |||
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 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 |
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 |
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 |
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 |
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 |
Troubleshooting steps 20-29 |
8 Retracting roll bar with RB switch (manual operation) | Ignition: ON | Roll bar is retracted |
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 |
Troubleshooting steps |
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 |
Troubleshooting step 32 |
Referenced documents
- ad7730p2000b Roadster soft top (RST) diagnosis previous knowledge
- ad7730p5000b Roadster soft top (RST) diagnosis troubleshooting
- as0000z000901a Risk of injury. Moving parts can pinch, crush or, in extreme cases even sever extremities.
- ra77001290450x 0450 - Removal and installation of the control unit for the top Model 129