Danger! | Risk of injury by trapping or crushing, in extreme cases with loss of limbs when working with the mechanism | When moving components, no body parts or limbs should be within the movement range of the mechanism. | |
Roadster soft top (RST) diagnosis, previous knowledge | |||
Troubleshooting | |||
Complaint with troubleshooting step number | Possible cause | Note | Remedy / test step |
1 Coupe roof does not unlock and/or does not lock | Hydraulic unit not running Power soft top switch (S84) Soft top "open" / front lock "open" valve (Y56/1y3) Soft top solenoid "closed", fabric bow lock valve "open" (Y55/1y1) Pump temperature signal System pressure (specified value) not reached Locking pins on coupe roof incorrectly adjusted |
RA77-0420 | |
2 Indicator lamp in power soft top switch not illuminated when ignition switched on | Voltage supply, terminal 15, 31 Power soft top switch (S84) Power soft top control module (N52) defective |
RA77-0450 | |
3 Indicator lamp in power soft top switch illuminated with soft top locked (no impulse display) (Chime sounds when driving) | Fabric bow limit switch locked, left (A22s2) Fabric bow limit switch locked, right (A23s2) Soft top limit switch locked, left (S84/1) Soft top limit switch locked, right (S84/2) | ||
4 Indicator lamp in power soft top switch illuminated with soft top opened (no impulse display) (Chime sounds when driving) | Soft top compartment cover locked, right | ||
5 Rollover bar cannot be raised with rollover bar switch | Hydraulic unit not running RB actuator switch (S83) Pump temperature signal System pressure (specified value) not reached Check hydraulic circuit for raising rollover bar | ||
6 Rollover bar cannot be raised with power soft top switch (Possible only during covering process, rollover bar must be raised first) | RB "raise" valve (Y56/1y3) Check hydraulic circuit for raising rollover bar | ||
7 Rollover bar cannot be retracted with rollover bar switch | Rollover bar "crash actuation" Hydraulic unit not running RB switch (manual operation) (S83) RB "lower" valve (Y56/1y2) RB "raise" valve (Y56/1y3) Pump temperature signal System pressure (specified value) not reached Check hydraulic circuit for retracting rollover bar | Capture rollover bar with switch | |
8 Rollover bar cannot be raised with power soft top switch | Hydraulic unit not running Power soft top switch (S84) RB "lower" valve (Y56/1y2) RB "raise" valve (Y56/1y3) Pump temperature signal System pressure (specified value) not reached Check hydraulic circuit for lowering rollover bar | ||
9 Rollover bar raises itself independently (no crash actuation) | Rollover bar operation element (right) defective |
RA91-920 | |
10 During soft top closing movement process: Soft top compartment cover does not unlock | Hydraulic unit not running Soft top "open" switch (soft top in storage compartment) (S84/3) RB "retracted" switch (S83/1) Power soft top switch (S84) Soft top compartment cover "open" / soft top compartment cover lock "open" valve (Y55/1y4) Pump temperature signal System pressure (specified value) not reached Check hydraulic circuit for opening middle lock | ||
11 Soft top compartment cover does not open or rises only slowly | Cover "locked" switch, right (A25s2) Soft top compartment cover "open" / soft top compartment cover lock "open" valve (Y55/1y4) Check hydraulic circuit for raising soft top compartment cover | ||
12 Soft top does not come out of soft top compartment, or only closes slowly | Soft top compartment "open" switch (S84/5) Soft top fabric bow "raised" switch (S84/6) Soft top "closed" / fabric bow lock valve "open" (Y55/1y1) Fabric bow "open" / soft top compartment cover "closed" valve (Y55/1y3) Check hydraulic circuit for closing soft top Check delivery volumes of hydraulic unit | ||
13 Soft top remains in 90° position | Left front door "window down" limit switch (S21/9) Right front door "window down" limit switch (S21/8) Left front power window motor (M10/3) not normalized Right front power window motor (M10/4) not normalized | Up to 12/94 Up to 12/94 As of 12/94 As of 12/94 |
33.0 34.0 |
14 Front locks do not lock | Left front soft top "locked" switch (S84/1) Right front soft top "locked" switch (S84/2) Power soft top switch (top) (S84/4) Fabric bow "open" / soft top compartment cover "closed" valve (Y55/1y3) Check hydraulic circuit for locking front locks Locking pins on soft top incorrectly adjusted |
RA77-0303 | |
15 Soft top compartment cover does not close, or closes only slowly, or does not lock | Left front soft top "locked" switch (S84/1) Right front soft top "locked" switch (S84/2) Soft top "closed" switch (reed contact as of 01/94) (S84/4) Fabric bow "open" / soft top compartment cover "closed" valve (Y55/1y3) Check hydraulic circuit for lowering soft top compartment cover | ||
16 Fabric bow does not lower or lowers only slowly | Cover "locked" switch, right (A25s2) Fabric bow "open" / soft top compartment cover "closed" valve (Y55/1y3) Fabric bow "closed" valve (Y55/1y2) Check hydraulic circuit for lowering fabric bow | ||
17 Rear locks do not lock | Fabric bow "closed" switch, left Soft top "closed" /fabric bow lock "closed" valve (Y55/1y1) Check hydraulic circuit for locking rear locks | ||
18 During soft top opening movement process: Rear locks do not unlock | Hydraulic unit not running Left front power window motor (M10/3) not normalized Right front power window motor (M10/4) not normalized Soft top "open" switch (soft top in storage compartment) (S84/3) RB "retracted" switch (S83/1) Power soft top switch (S84) Soft top "closed" switch /fabric bow lock "open" valve (Y55/1y1) Pump temperature signal System pressure (specified value) not reached Check hydraulic circuit for unlocking rear locks |
As of 12/94 As of 12/94 |
33 34 |
19 Fabric bow does not rise or rises only slowly | Bow "locked" switch (A22s2), left Bow "locked" switch (A23s2), right Fabric bow "open" / soft top compartment cover "closed" valve (Y55/1y3) Fabric bow "closed" valve (Y55/1y2) Check hydraulic circuit for raising fabric bow | ||
20 Fabric bow rises then lowers | Bow "closed" switch (A22s1), left | ||
21 Middle locks do not unlock | Soft top fabric bow "raised" switch (S84/6) Soft top compartment cover "open" / soft top compartment cover lock "open" valve (Y55/1y4) Check hydraulic circuit for unlocking middle locks | ||
22 Soft top compartment cover does not open or rises only slowly | Cover "locked" switch, right (A25s2) Soft top compartment cover "open" / soft top compartment cover lock "open" valve" (Y55/1y4) Check hydraulic circuit for raising soft top compartment cover | ||
23 Front locks do not unlock | Left front soft top "locked" switch (S84/1) Left front door "window down" limit switch (S21/9) Right front door "window down" limit switch (S21/8) RB "raise" valve (Y56/1y3) Check hydraulic circuit for unlocking front locks |
Up to 12/94 Up to 12/94 | |
24 Soft top does not open or opens only slowly | Left front soft top "locked" switch (S84/1) Right front soft top "locked" switch (S84/2) RB "raise" valve (Y56/1y3) Soft top "closed" switch / fabric bow lock "open" valve (Y55/1y1) Check hydraulic circuit for opening soft top Check delivery volumes of hydraulic unit | ||
25 Soft top compartment cover does not close or closes only slowly or does not lock | Soft top "open" switch (soft top in storage compartment) (S84/3) Soft top compartment cover "open" / soft top compartment cover lock "open" valve (Y55/1y4) Fabric bow "open" / soft top compartment cover "closed" valve (Y55/1y3) Check hydraulic circuit for lowering soft top compartment cover | ||
26 Side windows do not open with power soft top switch, but do open with power window switch | Left front door "window down" limit switch (S21/9) Right front door "window down" limit switch (S21/8) Left front power window motor (M10/3) not normalized Right front power window motor (M10/4) not normalized Power soft top control module (N52) | Up to 12/94 Up to 12/94 As of 12/94 As of 12/94 |
33 34 RA77-0450 |
27 Side windows do not close with power soft top switch, but do close with power window switch | Left front power window motor (M10/3) not normalized Right front power window motor (M10/4) not normalized Power soft top control module (N52) | As of 12/94 As of 12/94 | 33 34 RA77-0450 |
28 Side windows do not open and/or do not close with power window switch (step 1) | Left front power window switch (front center console) (S21/1) Right front power window switch (front center console) (S21/2) Left front power window motor (M10/3) Right front power window motor (M10/4) Power soft top control module (N52) |
RA77-0450 | |
29 Side windows do not open automatically with power window switch (step 2) | Left front door "window down" limit switch (S21/9) Right front door "window down" limit switch (S21/8) Left front power window motor (M10/3) not normalized Right front power window motor (M10/4) not normalized Left front power window switch (front center console) (S21/1) Right front power window switch (front center console) (S21/2) Power soft top control module (N52) | Up to 12/94 Up to 12/94 As of 12/94 As of 12/94 |
33 34 RA77-0450 |
30 Side windows convenience locking via driver / passenger side door or trunk lid lock, inoperative | Left front door actuator (S47), right front door actuator (S48), trunk lid lock actuator (S49) ATA/CF microswitch (S86), ATA/CF microswitch (S87s1), ATA/CF microswitch (S88s1) Power soft top control module |
RA77-0450 | |
31 Left side window cannot be normalized (electrical basic setting) As of 12/94 | Left front power window motor (M10/3) Power soft top control module (N52) |
RA77-0450 | |
32 Right side window cannot be normalized (electrical basic setting) As of 12/94 | Right front power window motor (M10/4) Power soft top control module (N52) |
RA77-0450 | |
33 Left side window does not open (4mm) with opening of left front door As of 12/94 | Window not normalized (electrical basic setting) Rotary tumbler microswitch (S86s2) Power soft top control module (N52) | Normalize power window motor. Close door, close side window with power window switch and allow to run for 1-2 s on lock. RA77-0450 | |
34 Right side window does not open (4mm) with opening of right front door As of 12/94 | Window not normalized (electrical basic setting) Rotary tumbler microswitch (S87s2) Power soft top control module (N52) | Normalize power window motor. Close door, close side window with window lifter switch and allow to run for 1-2 s on lock. RA77-0450 | |
35 Left side window does not close (4mm) with closing of left front door As of 12/94 | Window not normalized (electrical basic setting) Rotary tumbler microswitch (S86s2) Power soft top control module (N52) | Normalize power window motor. Close door, close side window with window lifter switch and allow to run for 1-2 s on lock. RA77-0450 | |
36 Right side window does not close (4mm) with closing of right front door As of 12/94 | Window not normalized (electrical basic setting) Rotary tumbler microswitch (S87s2) Power soft top control module (N52) | Normalize power window motor. Close door, close side window with window lifter switch and allow to run for 1-2 s on lock. RA77-0450 | |
37 Either or both side windows lose basic electrical setting As of 12/94 | Voltage supply, power soft top control module (N52) coupling X1 pin1, pin 5, pin 8 (undervoltage) Left front power window motor (M10/3) switching circuit Right front power window motor (M10/4) switching circuit Power soft top control module (N52) |
RA77-0450 | |
38 Convenience opening of side windows inoperative As of 06/97 | Left front door actuator (S47), right front door actuator (S48), trunk lid lock actuator (S49) ATA/CF microswitch (S86), ATA/CF microswitch (S87s1), ATA/CF microswitch (S88s1) Power soft top control module |
RA77-0450 |
Referenced documents
- ad7730p2000a Roadster soft top (RST) diagnosis previous knowledge
- ad7730p600001a RST test of electrical system Power supply circuit 30
- ad7730p600002a RST test of electrical system Power supply circuit 15, 31
- ad7730p600003a RST test of electrical system signal to hydraulic unit
- ad7730p600004a RST test of electrical system right soft top compartment cover locked limit switch
- ad7730p600005a RST test of electrical system left soft top compartment cover locked limit switch
- ad7730p600006a RST test of electrical system right soft top bow locked limit switch
- ad7730p600007a RST test of electrical system left soft top bow closed limit switch
- ad7730p600008a RST test of electrical system left soft top locked limit switch
- ad7730p600009a RST test of electrical system right soft top locked limit switch
- ad7730p600010a RST test of electrical system soft top compartment cover open limit switch
- ad7730p600011a RST test of electrical system soft top bow open limit switch
- ad7730p600012a RST test of electrical system soft top open limit switch
- ad7730p600013a RST test of electrical system soft top closed limit switch
- ad7730p600014a RST test of electrical system roll bar down limit switch
- ad7730p600015a RST test of electrical system left side window down limit switch
- ad7730p600016a RST test of electrical system right side window down limit switch
- ad7730p600018a RST test of electrical system soft top operating switch
- ad7730p600019a RST test of electrical system roll bar operating switch
- ad7730p600020a RST test of electrical system left front power window motor control module
- ad7730p600021a RST test of electrical system right front power window motor control module
- ad7730p600024a RST test of electrical system left power window switch
- ad7730p600025a RST test of electrical system right power window switch
- ad7730p600026a RST test of electrical system left front power window motor
- ad7730p600027a RST test of electrical system right front power window motor
- ad7730p600028a RST test of electrical system warning lamp in soft top operating switch
- ad7730p600029a RST test of electrical system solenoid valve soft top compartment cover open, soft top compartment cover lock open
- ad7730p600030a RST test of electrical system solenoid valve soft top open, front lock open
- ad7730p600031a RST test of electrical system solenoid valve soft top closed, soft top bow lock open
- ad7730p600032a RST test of electrical system solenoid valve soft top bow open, soft top compartment cover closed
- ad7730p600033a RST test of electrical system solenoid valve soft top bow closed
- ad7730p600034a RST test of electrical system lower roll bar solenoid valve
- ad7730p600035a RST test of electrical system raise roll-over bar solenoid valve
- ad7730p600036a RST test of electrical system overload protection thermocouple
- ad7730p600037a RST test of electrical system left front/right door, trunk lid lock actuator
- ad7730p600038a RST test of electrical system CF/ATA left/right door, trunk lid microswitch
- ad7730p600040a RST test of electrical system left rotary tumbler microswitch
- ad7730p600041a RST test of electrical system right rotary tumbler microswitch
- ad7730p700001a RST test of hydraulic system testing system pressure
- ad7730p700002a RST test of hydraulic system testing hydraulic unit
- ad7730p700003a RST test of hydraulic system testing delivery of hydraulic unit
- ad7730p700005a RST test of hydraulic system opening rear locks
- ad7730p700006a RST test of hydraulic system raising soft top bow
- ad7730p700007a RST test of hydraulic system opening center lock/raising soft top compartment cover
- ad7730p700007b RST test of hydraulic system opening center lock/raising soft top compartment cover
- ad7730p700008a RST test of hydraulic system opening front locks
- ad7730p700009a RST test of hydraulic system opening soft top
- ad7730p700010a RST test of hydraulic system closing soft top compartment cover/closing locks
- ad7730p700010b RST test of hydraulic system closing soft top compartment cover/closing locks
- ad7730p700012a RST test of hydraulic system closing soft top
- ad7730p700013a RST test of hydraulic system closing front locks
- ad7730p700015a RST test of hydraulic system lowering soft top bow
- ad7730p700016a RST test of hydraulic system closing rear locks
- ad7730p700017a RST test of hydraulic system raising roll-over bar
- ad7730p700018a RST test of hydraulic system lowering roll-over bar
- as0000z000901a Risk of injury. Moving parts can pinch, crush or, in extreme cases even sever extremities.
- ra77001290303x 0303 - Adjustment of the top Model 129
- ra77001290420x 0420 - Adjustment of the coupe roof Model 129 - A. Gap between roof/windshield, B. Gap between roof/body, C. Mount for roof pin on center pillars
- ra77001290450x 0450 - Removal and installation of the control unit for the top Model 129
- ra91001290920x 0920 - Adjustment of roll bar Model 129