Sliding Roof, Soft Top -- 170 Chassis

• Diagnostic Trouble Code List
• General Information
  • General notes: Passenger cars: Sliding roof, soft top, top attachments - AH77.00-Z-9999AZ
  • Notes on Vario roof assembly work - AH77.30-P-0002-01R
• Basic Knowledge
  • Vario roof (VR), function - GF77.30-P-0001G
    • Notes
    • Vario roof (VR), location of electric components - GF77.30-P-0001-01A
    • Vario roof (VR), location of hydraulic components - GF77.30-P-0001-02A
    • Vario roof (VR), interconnection of components - GF77.30-P-0001-03A
  • Opening Vario roof, function - GF77.30-P-2000G
  • Closing Vario roof, function - GF77.30-P-2001G
  • Vario roof front lock, location/purpose - GF77.33-P-3060G
  • Vario roof catch for front lock, location/purpose - GF77.33-P-3070G
  • Vario roof lock on C-pillar, location/purpose - GF77.33-P-3080G
  • Vario roof catches for tubular frame in trunk, location/purpose - GF77.33-P-3090G
  • Vario roof hydraulic system, function - GF77.37-P-0001G
  • Vario roof hydraulic unit, location/purpose - GF77.37-P-3010G
  • Vario roof solenoid valves, location/purpose - GF77.37-P-3020G
  • Vario roof hydraulic cylinder front lock actuation, location/ purpose - GF77.37-P-3030G
  • Vario roof hydraulic cylinder trunk lid actuation, location/purpose - GF77.37-P-3040G
  • Vario roof hydraulic cylinder roof actuation, location/purpose - GF77.37-P-3050G
  • Table of contents, function description of Vario roof - GF77.39-P-0999G
  • Vario roof switch, location/purpose/function - GF77.39-P-3000G
  • Vario roof "closed" limit switch (right lug), location/purpose - GF77.39-P-3001G
  • Vario roof "locked" limit switch (right rotary tumbler), location/purpose - GF77.39-P-3002G
  • Vario roof "locked" limit switch (left rotary tumbler), location/purpose - GF77.39-P-3003G
  • Left trunk lid closed/locked limit switch, location/purpose - GF77.39-P-3004G
  • Right trunk lid closed/locked limit switch, location/purpose - GF77.39-P-3005G
  • Trunk lid "open" limit switch, location/purpose - GF77.39-P-3006G
  • Retractabe luggage cover "closed" limit switch, location/purpose - GF77.39-P-3007G
  • Vario roof "open/lowered" limit switch, location/purpose - GF77.39-P-3008G
  • Trunk lid rotary tumbler/trunk lamp toggle switch, location/purpose - GF77.39-P-3009G
  • Hydraulic unit relay, location/purpose - GF77.39-P-3010G
  • Overload protection thermocouple, location/purpose - GF77.39-P-3011G
  • Vario roof gong, location/purpose/function - GF77.39-P-3012G
  • Vario roof warning lamp, location/purpose - GF77.39-P-3014G
  • Vario roof function stop, function - GF77.39-P-4001G
• Safety Precautions
  • Safety information: Sliding roof, soft top, top attachments - AS77.00-Z-9999ZZ
  • Risk of injury caused by body parts being trapped or crushed when working on partially open Vario roof (stop mode) or in its closing area as a result of the Vario roof suddenly collapsing - AS77.50-Z-0001-01A
• Trouble Diagnosis
  • Noises at seals of Vario roof when driving - AF77.30-P-1501AG
• Self-Diagnostic System
  • Vario roof (VR) diagnosis, contents - AD77.50-P-1000AZ
  • Vario roof (VR) diagnosis, previous knowledge - AD77.50-P-2000A
    • Notes
    • Tools, diagnosis of electrical system, vario roof (VR) - AD77.50-P-2000-01A
    • Tools, diagnosis of hydraulic system, vario roof (VR) - AD77.50-P-2000-02A
    • Variant coding, vario roof (VR) - AD77.50-P-2000-03A
    • Socket box connection diagram, vario roof (VR) - AD77.50-P-2000-04A
    • Notes on hydraulic testing, vario roof (VR) - AD77.50-P-2000-05A
    • Connection diagram between pressure gauge and hydraulic unit for vario roof (VR) - AD77.50-P-2000-06A
    • Summary chart, electric limit-switch constellation for opening procedure of vario roof - AD77.50-P-2000-07A
    • Summary chart, electric limit-switch constellation for closing procedure of vario roof - AD77.50-P-2000-08A
    • Summary chart, energizing side windows for opening procedure of vario roof - AD77.50-P-2000-09A
    • Summary chart, energizing side windows for closing procedure of vario roof - AD77.50-P-2000-10A
    • Circuit diagram for hydraulic unit, diagnosis with previous knowledge of vario roof (VR) - AD77.50-P-2000-11A
    • Circuit diagram for system pressure, diagnosis with previous knowledge of vario roof (VR) - AD77.50-P-2000-12A
    • Circuit diagram for hydraulic unit delivery rate, diagnosis with previous knowledge of vario roof (VR) - AD77.50-P-2000-13A
    • Circuit diagram for hydraulic cylinders, vario roof end of rod, diagnosis with previous knowledge of vario roof (VR) - AD77.50-P-2000-14A
    • Circuit diagram for hydraulic cylinders, trunk lid end of rod, diagnosis with previous knowledge of vario roof (VR) - AD77.50-P-2000-15A
    • Circuit diagram for hydraulic cylinders, rod end for front catch, diagnosis with previous knowledge of vario roof (VR) - AD77.50-P-2000-16A
    • Circuit diagram for hydraulic cylinders, vario roof end of plunger, diagnosis with previous knowledge of vario roof (VR) - AD77.50-P-2000-17A
    • Instructions for stopper for vario roof (VR) - AD77.50-P-2000-18A
    • Catches for tubular frame in trunk, vario roof (VR) - AD77.50-P-2000-19A
    • Locking to C-post, vario roof (VR) - AD77.50-P-2000-20A
    • Connection diagram for hydraulic cylinders, vario roof (VR) - AD77.50-P-2000-21A
    • Circuit diagram (folding roof closed) for hydraulic cylinders, vario roof (VR) - AD77.50-P-2000-22A
    • Operational sequence, opening vario roof (VR) - AD77.50-P-2000-23A
    • Operational sequence, closing vario roof (VR) - AD77.50-P-2000-24A
    • Summary chart, energizing of solenoid valves for vario roof opening procedure - AD77.50-P-2000-25A
    • Summary chart, energizing of solenoid valves for vario roof closing procedure - AD77.50-P-2000-26A
    • Note on fault memory, vario roof (VR) - AD77.50-P-2000-27A
  • Vario roof (VR) diagnosis, functional test - AD77.50-P-3000A
  • Vario roof (VR) diagnosis, functional test, actual values - AD77.50-P-3001A
  • Power windows, vario roof (VR) diagnosis, functional test, actual values - AD77.50-P-3002A
  • Vario roof (VR) diagnosis, fault memory (Fault Codes B1000, B1010, B1011, B1016, B1017, B1120, B1121, B1263, B1264, B1265, B1266, B1267, B1268, B1269, B1270, B1271, B1272, B1273, B1274, B1275, B1276, B1277, B1278, B1279, B1282, B1283, B1400, B1401, B1402, B1403, B1490, B1491, B1492, B1493, B1494) - AD77.50-P-4000A
  • Vario roof (VR) diagnosis, troubleshooting - AD77.50-P-5000A
  • Checking electrical system, vario roof (VR) - AD77.50-P-6000A
    • Notes
    • Voltage supply for terminal 30E, 31E, checking electrical system, vario roof (VR) - AD77.50-P-6000-01A
    • Voltage supply for terminal 30A, 31A, checking electrical system, vario roof (VR) - AD77.50-P-6000-02A
    • Voltage supply for terminal 15R, checking electrical system, vario roof (VR) - AD77.50-P-6000-03A
    • Voltage supply for terminal 15, checking electrical system, vario roof (VR) - AD77.50-P-6000-04A
    • Voltage supply for terminal 30B, 31B, checking electrical system, vario roof (VR) - AD77.50-P-6000-05A
    • Hydraulic unit motor (A7/5m1), checking electrical system, vario roof (VR) - AD77.50-P-6000-06A
    • Energizing of pump relay (A7/5k1) by multifunction control module (N10-3), checking electrical system, vario roof (VR) - AD77.50-P-6000-07A
    • Overload protection thermocouple (A7/5b1), checking electrical system, vario roof (VR) - AD77.50-P-6000-08A
    • Vario roof "locked" limit switch, checking electrical system, vario roof (VR) - AD77.50-P-6000-09A
    • Vario roof "closed" limit switch, checking electrical system, vario roof (VR) - AD77.50-P-6000-10A
    • Vario roof "open/lowered" limit switch, checking electrical system, vario roof (VR) - AD77.50-P-6000-11A
    • Trunk lid "open" limit switch, checking electrical system, vario roof (VR) - AD77.50-P-6000-12A
    • Trunk lid "closed/locked" limit switch, checking electrical system, vario roof (VR) - AD77.50-P-6000-13A
    • Trunk partition "closed" limit switch, checking electrical system, vario roof (VR) - AD77.50-P-6000-14A
    • Trunk lid rotary tumbler/trunk lamp toggle switch, checking electrical system, vario roof (VR) - AD77.50-P-6000-15A
    • Voltage supply for malfunction indicator lamp in vario roof switch, checking electrical system, vario roof (VR) - AD77.50-P-6000-16A
    • Energizing multi-function control module from vario roof switch, checking electrical system, vario roof (VR) - AD77.50-P-6000-17A
    • Vario roof switch light, checking electrical system, vario roof (VR) - AD77.50-P-6000-18A
    • Ground connection for left front power window switch from multi-function control module, checking electrical system, vario roof (VR) - AD77.50-P-6000-19A
    • Left front power window switch, checking electrical system, vario roof (VR) - AD77.50-P-6000-20A
    • Energizing of left front power window motor from multi-function control module, checking electrical system, vario roof (VR) - AD77.50-P-6000-21A
    • Left front power window motor, checking electrical system, vario roof (VR) - AD77.50-P-6000-22A
    • Ground connection for right front power window switch from multi-function control module, checking electrical system, vario roof (VR) - AD77.50-P-6000-23A
    • Right front power window switch, checking electrical system, vario roof (VR) - AD77.50-P-6000-24A
    • Energizing of right front power window motor from multi-function control module, checking electrical system, vario roof (VR) - AD77.50-P-6000-25A
    • Right front power window motor, checking electrical system, vario roof (VR) - AD77.50-P-6000-26A
    • Energizing of left rear power window motor from multi-function control module, checking electrical system, vario roof (VR) - AD77.50-P-6000-27A
    • Left rear power window motor, checking electrical system, vario roof (VR) - AD77.50-P-6000-28A
    • Energizing of right rear power window motor from multi-function control module, checking electrical system, vario roof (VR) - AD77.50-P-6000-29A
    • Right rear power window motor, checking electrical system, vario roof (VR) - AD77.50-P-6000-30A
    • Energizing of vario roof solenoid valve, checking electrical system, vario roof (VR) - AD77.50-P-6000-31A
    • Energizing of trunk lid cylinder, checking electrical system, vario roof (VR) - AD77.50-P-6000-32A
    • Energizing of gong in instrument cluster, checking electrical system, vario roof (VR) - AD77.50-P-6000-33A
    • Status signal from wheel speed sensor, checking electrical system, vario roof (VR) - AD77.50-P-6000-34A
    • Speed signal, checking electrical system, vario roof (VR) - AD77.50-P-6000-35A
  • Vario roof (VR), checking hydraulic system - AD77.50-P-7000A
    • Notes
    • Hydraulic unit, checking hydraulic system, vario roof (VR) - AD77.50-P-7000-01A
    • System pressure, checking hydraulic system, vario roof (VR) - AD77.50-P-7000-02A
    • Hydraulic unit delivery rate, checking hydraulic system, vario roof (VR) - AD77.50-P-7000-03A
    • Hydraulic cylinder (rod end) for vario roof, checking hydraulic system, vario roof (VR) - AD77.50-P-7000-04A
    • Hydraulic cylinder (rod end) for trunk lid, checking hydraulic system, vario roof (VR) - AD77.50-P-7000-05A
    • Hydraulic cylinder (rod end) for front catch, checking hydraulic system, vario roof (VR) - AD77.50-P-7000-06A
    • Hydraulic cylinder (plunger end) for vario roof, checking hydraulic system, vario roof (VR) - AD77.50-P-7000-07A
• Testing & Repair
  • Removing and installing catch at front of Vario roof - AR77.33-P-3400G
  • Removing and installing mount for catch on cross member above windshield - AR77.33-P-3450G
  • Removing and installing catches for tubular frame in trunk - AR77.33-P-3460G
  • Adjusting control cable for lock on C-pillar - AR77.33-P-3470G
  • Adjusting control cable for tubular frame catches in trunk - AR77.33-P-3480G
  • Remove/install hydraulic cylinder for Vario-roof actuation - AR77.37-P-3490G
  • Remove/install hydraulic unit - AR77.37-P-3500G
    • Notes
    • Connect valve block to hydraulic unit - AR77.37-P-3500-01G
  • Check, correct oil level of hydraulic unit - AR77.37-P-3501G
    • Notes
    • Correct oil level of hydraulic unit - AR77.37-P-3501-01G
  • Check hydraulic unit and hydraulic cylinder for Vario roof - AR77.37-P-3502G
  • Remove/install hydraulic cylinder for trunk lid actuation - AR77.37-P-3550G
  • Remove/install hydraulic cylinder on front catch - AR77.37-P-3560G
  • Removing and installing vario-roof - AR77.50-P-3000G
    • Notes
    • Move Vario roof into intermediate position and secure - AR77.50-P-3000-01V
  • Removing and installing cover between trunk lid and roll-bar - AR77.50-P-3010G
  • Adjusting vario-roof - AR77.50-P-3030G
  • Adjusting gap between vario-roof and cross member above windshield - AR77.50-P-3035G
  • Adjusting contour of Vario roof - AR77.50-P-3040G
  • Adjusting catch on C-pillar - AR77.50-P-3045G
  • Adjusting stop buffer on vario-roof - AR77.50-P-3050G
  • Remove/install front section of Vario roof - AR77.50-P-3100G
  • Remove/install rear section of Vario roof - AR77.50-P-3200G
  • Remove/install roof kinematics - AR77.50-P-3300G
    • Notes
    • Installing installation support in Vario roof - AR77.50-P-3300-01G
  • Removing and installing seal on A-pillar - AR77.50-P-4000G
  • Removing, installing seal at rear of vario roof - AR77.50-P-4100G
  • Removing, installing seal at front side of Vario roof - AR77.50-P-4200G
• Retrofitting & Conversion
  • Retrofitting roof rack attachment - AN77.50-P-1000G
• Removal & Installation
  • Provide Vario roof seals with sliding oil - SM77.30-P-0001A
• Capacities & Specifications
  • Soft top hydraulic system - BF77.37-P-1000-01A
• Torque Specifications
  • Tightening torques: Passenger cars: Sliding roof, soft top, top attachments - BA77.00-Z-9999AZ
  • Soft top mechanical components - BA77.33-P-1000-01A
  • Soft top hydraulic system - BA77.37-P-1000-01A