Checking electrical system, vario roof (VR) - AD77.50-P-6000A: Notes
MODEL 170
| Risk of injury in the form of trapping or crushing when working on preloaded springs or spring devices | Use only the approved clamping devices, and cordon off the danger zone if appropriate. Check special tools for damage and correct functioning (visual inspection). Wear protective gloves. | AS00.00-Z-0001-01A | |
| Risk of injury as a result of trapping or crushing when working on the partly open vario roof (stop mode) or within its closing range as a result of the vario roof suddenly collapsing | Secure the vario roof with a suitable special tool. | AS77.50-Z-0001-01A | |
| Risk of injury in the form of trapping or crushing , or even severing of limbs, if caught in the mechanism | When moving the components, no parts of the body or limbs may be within the mechanism's range of movement. | AS00.00-Z-0009-01A | |
| Vario roof (VR) diagnosis, previous knowledge | AD77.50-P-2000A | ||
| Using and connecting up test devices | AD00.00-P-1000AZ | ||
| Vario roof (VR), position of electrical components | GF77.30-P-0001-01A | ||
| Vario roof (VR), interconnection of components | GF77.30-P-0001-03A | ||
| After performing checks on the vario roof, read out the fault memory and erase if appropriate | |||
| a | Fuses OK | ||
| b | Battery voltage 11-14 Volt (when working on the vario roof, always connect up battery charger). | ||
| c | Before disconnecting or connecting a coupling on the multi-function control module (N10-3), always disconnect the battery negative terminal (faults will otherwise erroneously be stored). | ||
| d | Insert model-specific test module in Hand-Held Tester | ||
| e | Connect up Hand-Held Tester (HHT) | AD00.00-P-2000-03A | |
| Checking | |||
| 1 | Voltage supply for terminal 30E, 31E, checking electrical system, vario roof (VR) | AD77.50-P-6000-01A | |
| 2 | Voltage supply for terminal 30A, 31A, checking electrical system, vario roof (VR) | AD77.50-P-6000-02A | |
| 3 | Voltage supply for terminal 15R, checking electrical system, vario roof (VR) | AD77.50-P-6000-03A | |
| 4 | Voltage supply for terminal 15, checking electrical system, vario roof (VR) | AD77.50-P-6000-04A | |
| 5 | Voltage supply for terminal 30B, 31B, checking electrical system, vario roof (VR) | AD77.50-P-6000-05A | |
| 6 | Hydraulic unit motor (A7/5m1), checking electrical system, vario roof (VR) | AD77.50-P-6000-06A | |
| 7 | Energizing of pump relay (A7/5k1) by multifunction control module (N10-3), checking electrical system, vario roof (VR) | AD77.50-P-6000-07A | |
| 8 | Overload protection thermocouple (A7/5b1), checking electrical system, vario roof (VR) | AD77.50-P-6000-08A | |
| 9 | Vario roof "locked" limit switch, checking electrical system, vario roof (VR) | AD77.50-P-6000-09A | |
| 10 | Vario roof "closed" limit switch, checking electrical system, vario roof (VR) | AD77.50-P-6000-10A | |
| 11 | Vario roof "open/lowered" limit switch, checking electrical system, vario roof (VR) | AD77.50-P-6000-11A | |
| 12 | Trunk lid "open" limit switch, checking electrical system, vario roof (VR) | AD77.50-P-6000-12A | |
| 13 | Trunk lid "closed/locked" limit switch, checking electrical system, vario roof (VR) | AD77.50-P-6000-13A | |
| 14 | Trunk partition "closed" limit switch, checking electrical system, vario roof (VR) | AD77.50-P-6000-14A | |
| 15 | Trunk lid rotary tumbler/trunk lamp toggle switch, checking electrical system, vario roof (VR) | AD77.50-P-6000-15A | |
| 16 | Voltage supply for malfunction indicator lamp in vario roof switch, checking electrical system, vario roof (VR) | AD77.50-P-6000-16A | |
| 17 | Energizing multi-function control module from vario roof switch, checking electrical system, vario roof (VR) | AD77.50-P-6000-17A | |
| 18 | Vario roof switch light, checking electrical system, vario roof (VR) | AD77.50-P-6000-18A | |
| 19 | Ground connection for left front power window switch from multi-function control module, checking electrical system, vario roof (VR) | AD77.50-P-6000-19A | |
| 20 | Left front power window switch, checking electrical system, vario roof (VR) | AD77.50-P-6000-20A | |
| 21 | Energizing of left front power window motor from multi-function control module, checking electrical system, vario roof (VR) | AD77.50-P-6000-21A | |
| 22 | Left front power window motor, checking electrical system, vario roof (VR) | AD77.50-P-6000-22A | |
| 23 | Ground connection for right front power window switch from multi-function control module, checking electrical system, vario roof (VR) | AD77.50-P-6000-23A | |
| 24 | Right front power window switch, checking electrical system, vario roof (VR) | AD77.50-P-6000-24A | |
| 25 | Energizing of right front power window motor from multi-function control module, checking electrical system, vario roof (VR) | AD77.50-P-6000-25A | |
| 26 | Right front power window motor, checking electrical system, vario roof (VR) | AD77.50-P-6000-26A | |
| 27 | Energizing of left rear power window motor from multi-function control module, checking electrical system, vario roof (VR) | AD77.50-P-6000-27A | |
| 28 | Left rear power window motor, checking electrical system, vario roof (VR) | AD77.50-P-6000-28A | |
| 29 | Energizing of right rear power window motor from multi-function control module, checking electrical system, vario roof (VR) | AD77.50-P-6000-29A | |
| 30 | Right rear power window motor, checking electrical system, vario roof (VR) | AD77.50-P-6000-30A | |
| 31 | Energizing of vario roof solenoid valve, checking electrical system, vario roof (VR) | AD77.50-P-6000-31A | |
| 32 | Energizing of trunk lid cylinder, checking electrical system, vario roof (VR) | AD77.50-P-6000-32A | |
| 33 | Energizing of gong in instrument cluster, checking electrical system, vario roof (VR) | AD77.50-P-6000-33A | |
| 34 | Status signal from wheel speed sensor, checking electrical system, vario roof (VR) | AD77.50-P-6000-34A | |
| 35 | Speed signal, checking electrical system, vario roof (VR) | AD77.50-P-6000-35A |