Danger! | Risk of injury due to getting jammed or crushed, in extreme cases due to limbs being severed when intervening in the soft top mechanism during the opening or closing process | 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 | |||
Troubleshooting | |||
Complaint with troubleshooting step number | Possible cause | Note | Remedy/Test step |
1 Hardtop does not unlock or lock |
Hydraulic unit does not operate Rear locks valve (Y56y2) Front locks valve (Y56y4) System pressure (specified value) not reached Locking pins on hardtop adjusted badly |
RA77-0420 | |
2 Indicator lamp in power soft top switch does not come on when ignition is switched on |
Voltage supply, terminals 15, 31 Power soft top switch (S84) Control module defective |
RA77-0450 | |
3 Indicator lamp in power soft top switch comes on when soft top is locked (no pulse readout) (gong sounds when driving) |
Bow "locked" switch (A22s2), left Left front soft top "locked" switch (S84/1) Right front soft top "locked" switch (S84/2) | ||
4 Indicator lamp in power soft top switch comes on when soft top is open (no pulse readout) (gong sounds when driving) |
Cover "locked" switch (A24s2), left Cover "locked" switch (A25s2), right Power soft top switch (top) (differential operation) (S84/4) | ||
5 Roll bar cannot be extended with RB switch (manual operation) |
Hydraulic unit does not run RB switch (manual operation) (S83) System pressure (specified value) not reached Check locks Check hydraulic circuit for extending roll bar | ||
6 Roll bar cannot be extended with the power soft top switch (only possible during the soft top sequence, roll bar must be extended beforehand) |
Piston side valve (Y57y11) System pressure (specified value) not reached Check locks Check hydraulic circuit for extending roll bar | ||
7 Roll bar cannot be retracted with RB switch (manual operation) |
Roll bar "crash deployed" Hydraulic unit does not operate RB switch (manual operation) (S83) Rod side valve (Y57y10) Piston side valve (Y57y11)
Check locks Check hydraulic circuit for extending roll bar |
Catch" roll bar with switch | |
8 Roll bar cannot be retracted with power soft top switch |
Hydraulic unit does not operate Power soft top switch (S84) Rod side valve (Y57y10) Piston side valve (Y57y11)
Check locks Check hydraulic circuit for retracting roll bar | ||
9 Roll bar extends by itself (no crash deployment) |
Roll bar actuator (right) defective |
RA91-920 | |
10 During movement sequence - closing soft top: Soft top compartment cover does not unlock |
Hydraulic unit does not operate RB "retracted" switch (S83/1) Soft top "open" switch (soft top in storage compartment) (S84/3) Power soft top switch (S84) Soft top compartment lock valve (Y56y3) System pressure (specified value) not reached Check locks Check hydraulic circuit for opening center locks | ||
11 Soft top compartment cover does not open or only raises slowly |
Cover "locked" switch (A24s2), left Cover "locked" switch (A25s2), right Soft top compartment cover valve (Y56y5) System pressure (specified value) not reached Check locks Check hydraulic circuit for raising soft top compartment cover | ||
12 Soft top compartment cover opens and closes |
Cover "closed" switch (A24s1), left Cover "closed" switch (A25s1), right | ||
13 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 "close" valve (Y55y7) Fabric bow "raise" valve (Y55y8) System pressure (specified value) not reached Check locks Check hydraulic circuit for closing soft top | ||
14 Soft top remains in 90° position |
Left front door "window down" limit switch (S21/9) Right front door "window down" limit switch (S21/8) | ||
15 Front locks do not lock |
Power soft top switch (top) (differential operation) (S84/4) Left front soft top "locked" switch (S84/1) Right front soft top "locked" switch (S84/2) Front locks valve (Y56y4) System pressure (specified value) not reached Check locks Check hydraulic circuit for locking front locks |
RA77-0303 | |
16 Soft top compartment cover does not close or only closes slowly or does not lock |
Left front soft top "locked" switch (S84/1) Right front soft top "locked" switch (S84/2) Soft top fabric bow "raised" switch (S84/6) Soft top compartment cover valve (Y56y5) System pressure (specified value) not reached Check locks Check hydraulic circuit for closing soft top compartment cover | ||
17 Soft top compartment cover does not lock |
Cover "closed" switch (A24s1), left Cover "closed" switch (A25s1), right Soft top compartment cover valve (Y56y5) System pressure (specified value) not reached Check locks Check hydraulic circuit for closing soft top compartment cover | ||
18 Soft top bow does not lower or only lowers slowly |
Cover "locked" switch (A24s2), left Cover "locked" switch (A25s2), right Fabric bow "raise" valve (Y55y8) Fabric bow "lower" valve (Y55y9) System pressure (specified value) not reached Check locks Check hydraulic circuit for lowering soft top bow | ||
19 Rear locks do not lock |
Bow "closed" switch (A22s1), left Bow "closed" switch (A23s1), right Soft top "close" valve (Y55y7) Rear locks valve (Y56y2) System pressure (specified value) not reached Check locks Check hydraulic circuit for locking rear locks | ||
20 During movement sequence - opening soft top: Rear locks do not unlock |
RB "retracted" switch (S83/1) Soft top "open" switch (soft top in storage compartment) (S84/3) RB switch (manual operation) (S83) Rear locks valve (Y56y2) System pressure (specified value) not reached Check locks Check hydraulic circuit for opening rear locks | Read out pulse readout | |
21 Soft top bow does not raise or only raises slowly |
Bow "locked" switch (A22s2) Bow "locked" switch (A23s2) Fabric bow "raise" valve (Y55y8) System pressure (specified value) not reached Check locks Check hydraulic circuit for raising soft top bow | ||
22 Soft top bow raises and lowers |
Bow "closed" switch (A22s1), left Bow "closed" switch (A23s1), right | ||
23 Center locks do not unlock |
Soft top fabric bow "raised" switch (S84/6) Center locks valve (Y56y3)
Check locks Check hydraulic circuit for opening center locks | ||
24 Soft top compartment cover does not open or raises only slowly |
Cover "locked" switch (A24s2), left Cover "locked" switch (A25s2), right Soft top compartment cover valve (Y56y5)
Check locks Check hydraulic circuit for raising soft top compartment cover | ||
25 Soft top compartment cover opens and closes |
Cover "closed" switch (A24s1), left Cover "closed" switch (A25s1), right | ||
26 Front locks do not unlock |
Soft top compartment "open" switch (S84/5) Left front door "window down" limit switch (S21/9) Right front door "window down" limit switch (S21/8) Front locks valve (Y56y4) System pressure (specified value) not reached Check locks Check hydraulic circuit for opening front locks | ||
27 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) Soft top "open" valve (Y55y6) System pressure (specified value) not reached Check locks Check hydraulic circuit for opening soft top | ||
28 Soft top compartment cover does not close or only closes slowly |
Soft top "open" switch (soft top in storage compartment) (S84/3) Soft top compartment cover valve (Y56y5) System pressure (specified value) not reached Check locks Check hydraulic circuit for closing soft top compartment cover | ||
29 Center locks do not lock |
Cover "closed" switch (A24s1), left Cover "closed" switch (A25s1), right Center locks valve (Y56y3) System pressure (specified value) not reached Check locks Check hydraulic circuit for opening center locks | ||
30 Side windows do not open with power soft top switch but do open with power window switch |
Power soft top control module Left front door "window down" limit switch (S21/9) Right front door "window down" limit switch (S21/8) |
RA77-0450 | |
31 Side windows do not open or close with the power window switch with automatic lowering only |
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) Left front door "window down" limit switch (S21/9) Right front door "window down" limit switch (S21/8) |
RA77-0450 | |
32 Convenience closing of side windows (via driver's, front passenger's or trunk lock) inoperative |
ATA/CF microswitch (S86) ATA/CF microswitch (S87s1) ATA/CF microswitch (S88s1) Left front door actuator (S47) Right front door actuator (S48) Trunk lid lock actuator (S49) Power soft top bow control module |
RA77-0450 |
Referenced documents
- ad7730p2000b Roadster soft top (RST) diagnosis previous knowledge
- ad7730p600001b RST test of electrical system voltage supply circuit 30
- ad7730p600002b RST test of electrical system voltage supply circuit 15, 31
- ad7730p600003b RST test of electrical system signal to hydraulic unit
- ad7730p600004b RST test of electrical system right soft top compartment cover locked limit switch
- ad7730p600005b RST test of electrical system left soft top compartment cover locked limit switch
- ad7730p600006b RST test of electrical system right soft top bow locked limit switch
- ad7730p600007b RST test of electrical system left soft top bow closed limit switch
- ad7730p600008b RST test of electrical system left soft top locked limit switch
- ad7730p600009b RST test of electrical system right soft top locked limit switch
- ad7730p600010b RST test of electrical system soft top compartment cover open limit switch
- ad7730p600011b RST test of electrical system soft top bow open limit switch
- ad7730p600012b RST test of electrical system soft top open limit switch
- ad7730p600014b RST test of electrical system roll-over bar down limit switch
- ad7730p600015b RST test of electrical system left side window down limit switch
- ad7730p600016b RST test of electrical system right side window down limit switch
- ad7730p600018b RST test of electrical system soft top operating switch
- ad7730p600019b RST test of electrical system roll-over bar operating switch
- ad7730p600024b RST test of electrical system left power window switch
- ad7730p600025b RST test of electrical system right power window switch
- ad7730p600026b RST test of electrical system left front power window motor
- ad7730p600027b RST test of electrical system right front power window motor
- ad7730p600028b RST test of electrical system warning lamp in soft top operating switch
- ad7730p600037b RST test of electrical system left front/right door, trunk lid lock actuator
- ad7730p600038b RST test of electrical system CF/ATA left/right door, trunk lid microswitch
- ad7730p700001b RST test of hydraulic system testing system pressure
- ad7730p700004b RST test of hydraulic system testing locks
- ad7730p700005b RST test of hydraulic system opening rear locks
- ad7730p700006b RST test of hydraulic system raising soft top bow
- ad7730p700008b RST test of hydraulic system opening front locks
- ad7730p700009b RST test of hydraulic system opening soft top
- ad7730p700010c RST test of hydraulic system closing soft top compartment cover/closing locks
- ad7730p700012b RST test of hydraulic system closing soft top
- ad7730p700013b RST test of hydraulic system closing front locks
- ad7730p700015b RST test of hydraulic system lowering soft top bow
- ad7730p700016b RST test of hydraulic system closing rear locks
- ad7730p700017b RST test of hydraulic system raising roll-over bar
- ad7730p700018b RST test of hydraulic system lowering roll-over bar
- ad7737p700001a Opening center locks, testing hydraulics, RST
- ad7737p700002a Raising soft top compartment cover, testing hydraulics, RST
- ad7739p600001a Cover "locked" switch, left, testing electrical system, RST
- ad7739p600002a Cover "closed" switch, left, testing electrical system, RST
- ad7739p600003a Cover "closed" switch, right, testing electrical system, RST
- ad7739p600004a Bow "closed" switch, right, testing electrical system RST
- ad7739p600005a Power soft top switch (top) (differential operation), testing electrical system, RST
- ad7739p600016a Actuation of rear locks valve, testing electrical system, RST
- ad7739p600017a Rear locks valve and cables, testing electrical system, RST
- ad7739p600018a Actuation of center locks valve, testing electrical system, RST
- ad7739p600019a Center locks valve and cables, testing electrical system, RST
- ad7739p600020a Actuation of front locks valve, testing electrical system, RST
- ad7739p600021a Front locks valve and cables, testing electrical system, RST
- ad7739p600022a Actuation of soft top compartment cover valve, testing electrical system, RST
- ad7739p600023a Soft top compartment cover valve and cables, testing electrical system, RST
- ad7739p600024a Actuation of soft top "open" valve, testing electrical system, RST
- ad7739p600025a Soft top "open" valve and cables, testing electrical system, RST
- ad7739p600026a Actuation of soft top "close" valve, testing electrical system, RST
- ad7739p600027a Soft top "close" valve and cables, testing electrical system, RST
- ad7739p600028a Actuation of fabric bow "raise" valve, testing electrical system, RST
- ad7739p600029a Fabric bow "raise" valve and cables, testing electrical system, RST
- ad7739p600030a Actuation of fabric bow "lower" valve, testing electrical system, RST
- ad7739p600031a Fabric bow "lower" valve and cables, testing electrical system, RST
- ad7739p600032a Actuation of rod side valve, testing electrical system, RST
- ad7739p600033a Rod side valve and cables, testing electrical system, RST
- ad7739p600034a Actuation of piston side valve, testing electrical system, RST
- ad7739p600035a Piston side valve and cables, testing electrical system, RST
- 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