Vario roof (VR) diagnosis, troubleshooting - AD77.50-P-5000A
MODEL 170
| Vario roof (VR) diagnosis, troubleshooting | AD77.50-P-2000A | ||
| Troubleshooting | |||
| Defect | Possible cause | Notes | Remedy |
| 1 | Voltage supply at terminal 15 | AD77.50-P-6000-04A | |
| Indicator lamp in vario roof switch (S84) is not illuminated when ignition switched on | Vario roof switch (S84) | AD77.50-P-6000-16A | |
| Multi-function control module (N10-3) | N10-3 | ||
| 2 | Trunk partition "closed" limit switch (S69/10) | AD77.50-P-6000-14A | |
| Indicator lamp in vario roof switch (S84) flashes at 6 times normal frequency (pulsing) when switch operated | Trunk lid "closed" limit switch (S69/12) | AD77.50-P-6000-15A | |
| 3 | Left trunk lid "closed/locked" limit switch (S69/7) not actuated | AD77.50-P-6000-13A | |
| Indicator lamp in vario roof switch flashes when vario roof open (no pulsing) (gong sounds when vehicle moving) | Right trunk lid "closed/locked" limit switch (S69/8) not actuated | AD77.50-P-6000-13A | |
| Vario roof "locked" limit switch (left rotary tumbler) (S69/3) not actuated | AD77.50-P-6000-09A | ||
| Vario roof "locked" limit switch (right rotary tumbler) (S69/2) not actuated After 6.5 minutes in the stop mode, the gong in the instrument cluster is energized for 30 s |
AD77.50-P-6000-09A | ||
| 4 | Left trunk lid "closed/locked" limit switch (S69/7) not actuated | AD77.50-P-6000-13A | |
| Indicator lamp in vario roof switch flashes (pulsing) when switch not operated | Right trunk lid "closed/locked" limit switch (S69/8) not actuated | AD77.50-P-6000-13A | |
| Vario roof "locked" limit switch (left rotary tumbler) (S69/3) not actuated | AD77.50-P-6000-09A | ||
| Vario roof "locked" limit switch (right rotary tumbler) (S69/2) not actuated After 6.5 minutes in the stop mode, the gong in the instrument cluster is energized for 30 s |
AD77.50-P-6000-09A | ||
| 5 Indicator lamp in vario roof switch flashes (pulsing) when switch operated |
Fault is identified (fault details stored) | Read out fault memory with Hand-Held Tester (HHT) | |
| 6 | Left trunk lid "closed/locked" limit switch (S69/7) not actuated | AD77.50-P-6000-13A | |
| Indicator lamp in vario roof switch illuminated when roof locked (no pulsing) (gong sounds when vehicle moving) | Right trunk lid "closed/locked" limit switch (S69/8) not actuated | AD77.50-P-6000-13A | |
| Vario roof "locked" limit switch (left rotary tumbler) (S69/3) not actuated | AD77.50-P-6000-09A | ||
| Vario roof "locked" limit switch (right rotary tumbler) (S69/2) not actuated | AD77.50-P-6000-09A | ||
| 7 | Hydraulic unit not running | AD77.50-P-6000-06A | |
| During opening procedure of vario roof: | Trunk partition "closed" limit switch (S69/10) | AD77.50-P-6000-07A | |
| front and rear side windows are not retracted | Trunk lid rotary tumbler/trunk lamp toggle | AD77.50-P-6000-14A | |
| switch (S69/12) | AD77.50-P-6000-15A | ||
| Left or right trunk lid "closed/locked" limit | AD77.50-P-6000-12A | ||
| switch (S69/7 or S69/8) and trunk lid "open" | AD77.50-P-6000-13A | ||
| limit switch (S69/9) are actuated | AD77.50-P-6000-10A | ||
| simultaneously | AD77.50-P-6000-11A | ||
| Vario roof "open/lowered" limit switch (S69/11) | AD77.50-P-6000-09A | ||
| and vario roof "closed" limit switch (S69/1) are | AD77.50-P-6000-10A | ||
| actuated simultaneously | AD77.50-P-6000-11A | ||
| Left or right vario roof "locked" limit switch | AD77.50-P-6000-10A | ||
| (S69/3 or S69/2) is actuated, whereas vario roof | AD77.50-P-6000-11A | ||
| "open/lowered" limit switch (S69/11) and vario | AD77.50-P-6000-13A | ||
| roof "closed" limit switch (S69/1) are not | AD77.50-P-2000-07A | ||
| actuated | AD77.50-P-2000-08A | ||
| Left or right trunk lid "closed/locked" limit | AD77.50-P-2000-09A | ||
| switch (S69/7 or S69/8) is actuated, whereas | AD77.50-P-2000-10A | ||
| vario roof "open/lowered" limit switch (S69/11) | AD77.50-P-6000-19A | ||
| and vario roof "closed" limit switch (S69/1) are | AD77.50-P-6000-20A | ||
| not actuated | AD77.50-P-6000-21A | ||
| No limit switch signal present | AD77.50-P-6000-22A | ||
| Voltage supply for power windows | AD77.50-P-6000-23A | ||
| Speed signal | AD77.50-P-6000-24A | ||
| Signal Temperature Pump | AD77.50-P-6000-25A | ||
| Switch Vario-Roof (S84) | AD77.50-P-6000-26A | ||
| Multi-function control unit (N10-3) | AD77.50-P-6000-27A | ||
| Vario roof solenoid valve (A7/5y1) | AD77.50-P-6000-28A | ||
| Trunk Lid Solenoid valve (A7/5y2) | AD77.50-P-6000-29A AD77.50-P-6000-30A AD77.50-P-6000-34A AD77.50-P-6000-35A AD77.50-P-6000-08A AD77.50-P-6000-17A AD77.50-P-6000-02A AD77.50-P-6000-05A AD77.50-P-6000-31A AD77.50-P-6000-32A |
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| 8 | Trunk lid rotary tumbler/trunk lamp toggle switch (S69/12) | AD77.50-P-6000-15A | |
| Vario roof is not released at front | Trunk partition "closed" limit switch (S69/10) Vario roof "locked" limit switch (left rotary tumbler) (S69/3) |
AD77.50-P-6000-14A | |
| Vario roof "locked" limit switch (right rotary tumbler) (S69/2) | AD77.50-P-6000-09A | ||
| Vario roof "open/lowered" limit switch (S69/11) Trunk lid "open" limit switch (S69/9) |
AD77.50-P-6000-09A | ||
| Left trunk lid "closed/locked" limit switch | AD77.50-P-6000-11A | ||
| (S69/7) | AD77.50-P-6000-12A | ||
| Right trunk lid "closed/locked" limit switch (S69/8) | AD77.50-P-6000-13A | ||
| Hydraulic pump (A7/5) | AD77.50-P-6000-13A | ||
| Vario roof solenoid valve (A7/5y1) | AD77.50-P-6000-06A | ||
| Trunk lid cylinder (A7/5y2) | AD77.50-P-6000-07A | ||
| Check vario roof hydraulic cylinder | AD77.50-P-6000-31A AD77.50-P-6000-32A AD77.50-P-7000-04A |
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| 9 | Trunk lid rotary tumbler/trunk lamp toggle switch (S69/12) | AD77.50-P-6000-15A | |
| Trunk lid is not released or does not open | Trunk partition "closed" limit switch (S69/10) Vario roof "locked" limit switch (left rotary tumbler) (S69/3) |
AD77.50-P-6000-14A | |
| Vario roof "locked" limit switch (right rotary tumbler) (S69/2) | AD77.50-P-6000-09A | ||
| Vario roof "open/lowered" limit switch (S69/11) | AD77.50-P-6000-09A | ||
| Trunk lid "open" limit switch (S69/9) Left trunk lid "closed/locked" limit switch |
AD77.50-P-6000-11A | ||
| (S69/7) | AD77.50-P-6000-12A | ||
| Right trunk lid "closed/locked" limit switch (S69/8) | AD77.50-P-6000-13A | ||
| Hydraulic pump (A7/5) | AD77.50-P-6000-13A | ||
| Vario roof solenoid valve (A7/5y1) | AD77.50-P-6000-06A | ||
| Trunk lid cylinder solenoid valve (A7/5y2) | AD77.50-P-6000-07A | ||
| Check vario roof hydraulic cylinder | AD77.50-P-6000-31A AD77.50-P-6000-32A AD77.50-P-7000-04A |
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| 10 | Trunk lid rotary tumbler/trunk lamp toggle switch (S69/12) | AD77.50-P-6000-15A | |
| Vario roof does not open | Trunk partition "closed" limit switch (S69/10) Left trunk lid "closed/locked" limit switch (S69/7) |
AD77.50-P-6000-14A | |
| Right trunk lid "closed/locked" limit switch (S69/8) | AD77.50-P-6000-13A | ||
| Vario roof "open/lowered" limit switch (S69/11) | AD77.50-P-6000-13A | ||
| Hydraulic pump (A7/5) | AD77.50-P-6000-11A | ||
| Trunk lid cylinder (A7/5y2) | AD77.50-P-6000-06A | ||
| Check vario roof hydraulic cylinder | AD77.50-P-6000-07A AD77.50-P-6000-32A AD77.50-P-7000-04A |
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| 11 | Trunk lid rotary tumbler/trunk lamp toggle switch (S69/12) | AD77.50-P-6000-15A | |
| Trunk lid does not close or lock | Trunk partition "closed" limit switch (S69/10) Left trunk lid "closed/locked" limit switch (S69/7) |
AD77.50-P-6000-14A | |
| Right trunk lid "closed/locked" limit switch (S69/8) | AD77.50-P-6000-13A | ||
| Vario roof "locked" limit switch (left rotary tumbler) (S69/3) | AD77.50-P-6000-13A | ||
| Vario roof "locked" limit switch (right rotary tumbler) (S69/2) | AD77.50-P-6000-09A | ||
| Trunk lid "open" limit switch (S69/9) | AD77.50-P-6000-09A | ||
| Hydraulic pump (A7/5) | AD77.50-P-6000-12A | ||
| AD77.50-P-6000-06A | |||
| Check trunk lid hydraulic cylinder | AD77.50-P-6000-07A AD77.50-P-7000-05A |
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| 12 | Voltage supply for power windows | AD77.50-P-6000-19A | |
| Side windows not raised after vario roof opening procedure | AD77.50-P-6000-20A AD77.50-P-6000-21A AD77.50-P-6000-22A AD77.50-P-6000-23A AD77.50-P-6000-24A AD77.50-P-6000-25A AD77.50-P-6000-26A AD77.50-P-6000-27A AD77.50-P-6000-28A AD77.50-P-6000-29A AD77.50-P-6000-30A |
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| Trunk lid rotary tumbler/trunk lamp toggle switch (S69/12) | AD77.50-P-6000-15A | ||
| Trunk partition "closed" limit switch (S69/10) | AD77.50-P-6000-14A | ||
| Left trunk lid "closed/locked" limit switch (S69/7) | AD77.50-P-6000-13A | ||
| Right trunk lid "closed/locked" limit switch (S69/8) | AD77.50-P-6000-13A | ||
| Vario roof "locked" limit switch (left rotary tumbler) (S69/3) | AD77.50-P-6000-09A | ||
| Vario roof "locked" limit switch (right rotary tumbler) (S69/2) | AD77.50-P-6000-09A | ||
| Trunk lid "open" limit switch (S69/9) | AD77.50-P-6000-12A | ||
| Multi-function control module (N10-3) | AD77.50-P-6000-02A AD77.50-P-6000-05A |
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| 13 | Hydraulic unit does not run | AD77.50-P-6000-06A | |
| During vario roof closing procedure: vario roof does not close | Trunk lid rotary tumbler/trunk lamp toggle | AD77.50-P-6000-07A | |
| switch (S69/12) | AD77.50-P-6000-15A | ||
| Trunk partition "closed" limit switch (S69/10) | AD77.50-P-6000-14A | ||
| Left or right trunk lid "closed/locked" limit | AD77.50-P-6000-12A | ||
| switch (S69/7 or S69/8) and trunk lid "open" | AD77.50-P-6000-13A | ||
| limit switch (S69/9) are actuated | AD77.50-P-6000-10A | ||
| simultaneously | AD77.50-P-6000-11A | ||
| Vario roof "open/lowered" limit switch (S69/11) | AD77.50-P-6000-09A | ||
| and vario roof "closed" limit switch (S69/1) are | AD77.50-P-6000-10A | ||
| actuated simultaneously | AD77.50-P-6000-11A | ||
| Left or right vario roof "locked" limit switch | AD77.50-P-6000-10A | ||
| (S69/3 or S69/2) is actuated, whereas vario roof | AD77.50-P-6000-11A | ||
| "open/lowered" limit switch (S69/11) and vario | AD77.50-P-6000-13A | ||
| roof "closed" limit switch (S69/1) are not | AD77.50-P-2000-07A | ||
| actuated | AD77.50-P-2000-08A | ||
| Left or right trunk lid "closed/locked" limit | AD77.50-P-2000-09A | ||
| switch (S69/7 or S69/8) is actuated, whereas | AD77.50-P-2000-10A | ||
| vario roof "open/lowered" limit switch (S69/11) | AD77.50-P-6000-19A | ||
| and vario roof "closed" limit switch (S69/1) are | AD77.50-P-6000-20A | ||
| not actuated | AD77.50-P-6000-21A AD77.50-P-6000-22A |
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| No limit switch signal present | AD77.50-P-6000-23A | ||
| Voltage supply for power windows | AD77.50-P-6000-24A | ||
| Speed signal | AD77.50-P-6000-25A | ||
| Signal Temperature Pump | AD77.50-P-6000-26A | ||
| Switch Vario-Roof (S84) | AD77.50-P-6000-27A | ||
| Multi-function control unit (N10-3) | AD77.50-P-6000-28A | ||
| Vario roof solenoid valve (A7/5y1) | AD77.50-P-6000-29A | ||
| Trunk Lid Solenoid valve (A7/5y2) | AD77.50-P-6000-30A AD77.50-P-6000-34A AD77.50-P-6000-35A AD77.50-P-6000-08A AD77.50-P-6000-17A AD77.50-P-6000-01A AD77.50-P-6000-03A AD77.50-P-6000-04A AD77.50-P-6000-31A AD77.50-P-6000-32A |
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| 14 | Vario roof "locked" limit switch (left rotary tumbler) (S69/3) | AD77.50-P-6000-09A | |
| Trunk lid is not released or does not open | Vario roof "locked" limit switch (right rotary tumbler) (S69/2) | AD77.50-P-6000-09A | |
| Trunk lid "open" limit switch (S69/9) | AD77.50-P-6000-12A | ||
| Left trunk lid "closed/locked" limit switch (S69/7) | AD77.50-P-6000-13A | ||
| Right trunk lid "closed/locked" limit switch (S69/8) | AD77.50-P-6000-13A | ||
| Trunk partition "closed" limit switch (S69/10) Trunk lid rotary tumbler/trunk lamp toggle switch (S69/12) |
AD77.50-P-6000-14A | ||
| Hydraulic pump (A7/5) | AD77.50-P-6000-15A AD77.50-P-6000-06A |
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| Trunk lid cylinder (A7/5y2) | AD77.50-P-6000-07A | ||
| Check vario roof hydraulic cylinder | AD77.50-P-6000-32A AD77.50-P-7000-04A |
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| 15 | Vario roof "locked" limit switch (left rotary tumbler) (S69/3) | AD77.50-P-6000-09A | |
| Vario roof is not released | Vario roof "locked" limit switch (right rotary tumbler) (S69/2) | AD77.50-P-6000-09A | |
| Trunk lid "open" limit switch (S69/9) | AD77.50-P-6000-12A | ||
| Left trunk lid "closed/locked" limit switch (S69/7) | AD77.50-P-6000-13A | ||
| Right trunk lid "closed/locked" limit switch (S69/8) | AD77.50-P-6000-13A | ||
| Trunk partition "closed" limit switch (S69/10) Trunk lid rotary tumbler/trunk lamp toggle switch (S69/12) |
AD77.50-P-6000-14A | ||
| Hydraulic pump (A7/5) | AD77.50-P-6000-15A AD77.50-P-6000-06A |
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| Trunk lid cylinder (A7/5y2) | AD77.50-P-6000-07A AD77.50-P-6000-32A |
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| 16 | Vario roof "closed" limit switch (S69/1) | AD77.50-P-6000-10A | |
| Vario roof does not close | Vario roof "open/lowered" limit switch (S69/11) Hydraulic pump (A7/5) |
AD77.50-P-6000-11A AD77.50-P-6000-06A |
|
| Vario roof solenoid valve (A7/5y1) Trunk lid cylinder (A7/5y2) |
AD77.50-P-6000-07A | ||
| Check hydraulic cylinder | AD77.50-P-6000-32A AD77.50-P-7000-01A |
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| 17 | Vario roof "locked" limit switch (left rotary tumbler) (S69/3) | AD77.50-P-6000-09A | |
| Trunk lid does not close or lock | Vario roof "locked" limit switch (right rotary tumbler) (S69/2) | AD77.50-P-6000-09A | |
| Trunk lid "open" limit switch (S69/9) | AD77.50-P-6000-12A | ||
| Left trunk lid "closed/locked" limit switch (S69/7) | AD77.50-P-6000-13A | ||
| Right trunk lid "closed/locked" limit switch (S69/8) | AD77.50-P-6000-13A | ||
| Hydraulic pump (A7/5) | AD77.50-P-6000-07A AD77.50-P-6000-06A |
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| Vario roof solenoid valve (A7/5y1) | AD77.50-P-6000-31A | ||
| Check vario roof hydraulic cylinder | AD77.50-P-7000-07A | ||
| 18 | Vario roof "locked" limit switch (left rotary tumbler) (S69/3) | AD77.50-P-6000-09A | |
| Vario roof does not lock | Vario roof "locked" limit switch (right rotary tumbler) (S69/2) | AD77.50-P-6000-09A | |
| Trunk lid "open" limit switch (S69/9) | AD77.50-P-6000-12A | ||
| Left trunk lid "closed/locked" limit switch (S69/7) | AD77.50-P-6000-13A | ||
| Right trunk lid "closed/locked" limit switch (S69/8) | AD77.50-P-6000-13A | ||
| Hydraulic pump (A7/5) | AD77.50-P-6000-06A AD77.50-P-6000-07A |
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| Vario roof solenoid valve (A7/5y1) | AD77.50-P-6000-31A | ||
| Check trunk lid hydraulic cylinder | AD77.50-P-7000-05A | ||
| 19 | Vario roof "locked" limit switch (left rotary tumbler) (S69/3) | AD77.50-P-6000-09A | |
| Rear side windows are not raised | Vario roof "locked" limit switch (right rotary tumbler) (S69/2) | AD77.50-P-6000-09A | |
| Trunk lid "open" limit switch (S69/9) | AD77.50-P-6000-12A | ||
| Left trunk lid "closed/locked" limit switch (S69/7) | AD77.50-P-6000-13A | ||
| Right trunk lid "closed/locked" limit switch (S69/8) | AD77.50-P-6000-13A | ||
| Voltage supply for power windows | AD77.50-P-6000-19A AD77.50-P-6000-20A AD77.50-P-6000-21A AD77.50-P-6000-22A AD77.50-P-6000-23A AD77.50-P-6000-24A AD77.50-P-6000-25A AD77.50-P-6000-26A AD77.50-P-6000-27A AD77.50-P-6000-28A AD77.50-P-6000-29A AD77.50-P-6000-30A AD77.50-P-6000-27A |
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| Multi-function control module (N10-3) | AD77.50-P-6000-29A AD77.50-P-6000-06A |
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| Hydraulic pump (A7/5) | AD77.50-P-6000-07A | ||
| Vario roof solenoid valve (A7/5y1) | AD77.50-P-6000-31A | ||
| 20 | Vario roof "locked" limit switch (left rotary tumbler) (S69/3) | AD77.50-P-6000-09A | |
| Front side windows are not raised | Vario roof "locked" limit switch (right rotary tumbler) (S69/2) | AD77.50-P-6000-09A | |
| Trunk lid "open" limit switch (S69/9) | AD77.50-P-6000-12A | ||
| Left trunk lid "closed/locked" limit switch (S69/7) | AD77.50-P-6000-13A | ||
| Right trunk lid "closed/locked" limit switch (S69/8) | AD77.50-P-6000-13A | ||
| Voltage supply for power windows | AD77.50-P-6000-19A AD77.50-P-6000-20A AD77.50-P-6000-21A AD77.50-P-6000-22A AD77.50-P-6000-23A AD77.50-P-6000-24A AD77.50-P-6000-25A AD77.50-P-6000-26A AD77.50-P-6000-27A AD77.50-P-6000-28A AD77.50-P-6000-29A AD77.50-P-6000-30A AD77.50-P-6000-21A |
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| Multi-function control module (N10-3) | AD77.50-P-6000-25A AD77.50-P-6000-06A |
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| Hydraulic pump (A7/5) | AD77.50-P-6000-07A | ||
| Vario roof solenoid valve (A7/5y1) | AD77.50-P-6000-31A | ||
| 21 | Vario roof not locked | AD77.50-P-6000-09A AD77.50-P-6000-13A |
|
| Side windows are not opened or closed by vario roof switch (S84) but can be operated by power window switch | Vario roof switch (S84) | AD77.50-P-6000-17A | |
| Multi-function control module (N10-3) | AD77.50-P-6000-21A AD77.50-P-6000-25A |
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| 22 | Left front power window switch (S21/1) | AD77.50-P-6000-20A | |
| Side windows are not opened or closed by power window switch (position 1) | Right front power window switch (S21/2) | AD77.50-P-6000-24A | |
| Left front power window motor (M10/3) | AD77.50-P-6000-22A | ||
| Right front power window motor (M10/4) | AD77.50-P-6000-26A | ||
| Multi-function control module (N10-3) | AD77.50-P-6000-19A AD77.50-P-6000-23A |
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| 23 | Left front power window switch (S21/1) | AD77.50-P-6000-20A | |
| Side windows are not opened automatically by power window switch (position 2) | Right front power window switch (S21/2) | AD77.50-P-6000-24A | |
| Multi-function control module (N10-3) | AD77.50-P-6000-19A AD77.50-P-6000-23A |
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| 24 Vario roof opening or closing procedure too slow |
Check hydraulic unit | AD77.50-P-7000-01A |