Circuit Diagram Information
Terminal Assignment
See TI Circuit Diagram for the relevant Model Year
Contents
Wiring diagrams Section: Air Conditioning- New Special Service Tools
- Introduction
- Checking Equipment
- Block Diagram of Air Conditioning and Radiator Fan Petrol Engines 20 Se, X 20 SE, X 20 XEV
- Block Diagram - 20 Se, X 20 SE, X 20 XEV
- Block Diagram of Air Conditioning and Radiator Fan Petrol Engines X 25 XE, X 30 XE
- Controls
- Block Diagram of Air Conditioning and Radiator Fan Diesel Engine X 25 DT
- Exchange AC Compressor
- Function Check
- Performance Test
- Performance Data
- Trouble-Shooting Table for Mechanical Faults/faults in Refrigerant Circuit
- Performance Values
- Performance Values of Air Conditioning
- Air Conditioning Compressor Diagnosis
- Trouble-Shooting Table for Electrical Faults - 20 Se, X 20 SE, X 20 XEV
- A-01, Main Diagnostic Check
- Trouble-Shooting Table for Electrical Faults - X 25 XE, X 30 XE
- B-01, Air Conditioning Does Not Cool
- Trouble-Shooting Table for Electrical - 25 Dt
- B-02, Air Conditioning Cooling Inadequately
- Function Table for Checking Actuation of Radiator Fan Motors M4, M11, M35
- B-03, Air Conditioning Cools with Interruptions
- Function Table - 20 Se, X 20 SE, X 20 XEV Only
- B-04, Excessive Operating Noise from Air Conditioning
- Function Table - X 25 XE, X 30 XE Only
- B-05, Water in Interior
- Function Table - 25 Dt Only
- A-02, Electrical Check, Radiator Fan Motor M4 and Relay Box Fan Motor M28 (Without Air Conditioning, X 20 SE, 20 Se, X 20 XEV Engines)
- Test Steps
- Test Step 01a - Radiator Fan Motor M4 - 20 Se, X 20 SE, X 20 XEV
- Test Step 01b - Radiator Fan Motor M4 - X 25 XE, X 30 XE
- Test Step 01c - Radiator Fan Motor M4 - 25 Dt
- A-06, Electrical Check of Fan Air Conditioning
- Test Step 02a - Radiator Fan Motor M11 - All Except 25 Dt
- A-07, Electrical Check of Air Conditioning (X 20 SE, 20 Se, X 20 XEV, X 25 XE, X 30 XE Engines)
- Test Step 02b - Radiator Fan Motor M11 - 25 Dt
- F0: Data List - Test Step 11 A/c Informat. Sw
- A-08, Electrical Check of Coolant Solenoid Valve
- Test Step 03 - Actuation of Radiator Fan Motors M4 and M11
- F0: Data List - Test Step 12 A/c Compress. Sw
- A-09, Electrical Check O Engine Speed Increase Switch
- Test Step 04 - AC Compressor Clutch Y1
- F0: Data List - Test Step 13 A/c Informat. Sw
- A-10, Electrical Check of Radiator Fan Motor M4, M11 AND Relay Box Fan Motor M28 (With Air Conditioning, X 20 SE, 20 Se, X 20 XEV Engines)
- Test Step 05 - AC Fan Motor M10
- F0: Data List - Test Step 14 A/c Compress. Sw
- A-11, Electrical Check of Radiator Fan Motor M4, M11, M12, Relay Box Fan Motor M28 AND Coolant Pump Run-On M54 (With AC, X 25 XE, X 30 XE)
- Test Step 06a - Low Pressure Compressor Switch S20.1/High Pressure S20.2 - Except 25DT
- A-12, Electrical Check of Radiator Fan Motor M4, M11, Relay Box Fan Motor M28, Coolant Pump Run-On M54 AND Intercooler Motor M80 (X25 DT, AC)
- Test Step 06b - Low Pressure Compressor Switch S20.1/High Pressure S20.2 - 25DT
- Test Step 07a - High Pressure Compressor Switch S20.3 - 20 Se, X 20 SE, X 20 XEV
- Test Step 07b - High Pressure Compressor Switch S20.3 - X 25 XE, X 30 XE
- Test Step 07c - High Pressure Compressor Switch S20.3 - 25 Dt
- How to Check of Radiator Fan Motor M4 the B-08 (M11, Relay Box Fan Motor M28, Fan Motor Coolant Pump Run-On and Intercooler Motor M80 Circuit)
- Test Step 08 - AC Fan Switch S 24
- Test Step 09 - Compressor Switch S101
- How to Check of Air Conditioning Fan Circuit the B-10
- Test Step 10 - Temperature Lever End Switch S119 Coolant Valve Y14
- How to Check of Circuit for AC Compressor Clutch Y1 Circuit the B-11
- Test Step 11 - Radiator Fan Relay K28 - X 25 XE, X 30 XE
- How to Check of AC Solenoid Valve Y14 Circuit the B-12
- Test Step 12a - Radiator Fan Relay K26 - 20 Se, X 20 SE, X 20 XEV
- F0: Data List - Test Step 24 A/c Cutoff Relay
- How to Check of Engine Speed Increase (Motronic) S109 Circuit the B-13
- Test Step 12b - Radiator Fan Relay K26 - X 25 XE, X 30 XE
- How to Check of Radiator Fan Motor M4 the B-14 (M11 AND Relay Box Fan Motor M28 Circuit)
- Test Step 13 - Radiator Fan Relay K87
- How to Check of Radiator Fan Motor M4 the B-15 (M11, M12, Relay Box Fan Motor M28 AND Coolant Pump Run-On M54 Circuit)
- Test Step 14 - Radiator Fan Relay K52
- How to Check of Radiator Fan Motor M4 the B-16 (M11, Relay Box Fan Motor M28, Coolant Pump Run-On M54, Intercooler Motor M80 Circuit)
- Test Step 15a - Radiator Fan Relay K67 - 20 Se, X 20 SE, X 20 XEV
- Test Step 15b - Radiator Fan Relay K67 - X 25 XE, X 30 XE
- Test Step 16 - AC Relay K6
- Test Step 17 - AC Fan Relay 4th Speed K7
- Test Step 18- AC Fan Relay 1st Speed K64
- Test Step 19- Compressor Speed Relay K60
- Test Step 20a - Coolant Temperature Switch S128 - 20 Se, X20SE, X20XEV
- Test Step 20b - Coolant Temperature Switch S128 - X 25 XE, X 30 XE
- Test Step 20c - Coolant Temperature Switch S128 - 25 Dt
- Test Step 21 - Coolant Temperature Switch S29
- Test Step 22 - Coolant Temperature Switch 2 Speed S88
- Test Step 23 - Engine Speed Increase Pressure Switch S109
- Test Step 24 - Relay Box Fan Motor M28
- Test Step 25 - Relay Box Fan Relay K49
- Test Step 26a - Relay Box Fan Relay K48 - X 25 XE, X 30 XE
- Test Step 26b - Relay Box Fan Relay K48 - 25 Dt
- Test Step 27 - Radiator Fan Motor M35
- Test Step 28 - Radiator Fan Series Resistor R 19
- Test Step 29a - Coolant Pump Run-On Relay K22 - X 25 XE, X 30 XE
- Test Step 29b - Coolant Pump Run-On Relay K22 - 25 Dt
- Test Step 30 - Coolant Pump Run-On M54
- Test Step 31 - Radiator Fan Relay K51
- Test Step 32 - Radiator Fan Relay K96
- Survey of Relay Locations
- Survey of Plug Connections
- Relay Frame Behind Fuse Box - Lhd
- Relay Box, Engine Compartment
- Connection, Instrument Panel and Wiring Harness, Additional X5
- F0: Data List - Test Step 11 A/c Informat. Sw.
- Connection, Motronic and Wiring Harness, Additional X30
- How to Check of AC Fan Switch S24 THE C-28
- Circuit Diagram
- Time Allowance
- How to Check of AC Fan Motor M10 THE C-30
- Block Diagram - X 25 XE, X 30 XE
- How to Check of Air Conditioning Relay K6 the C-31
- Block Diagram - 25 Dt
- How to Check of AC Fan Relay 1st Stage K64 THE C-32
- How to Check of Air Conditioning Switch S101 the C-33
- How to Check of Compressor Switches the C-34 (Low Pressure S20.1 and High Pressure S20.2)
- How to Check of AC Compressor Speed Relay K60 THE C-35
- F0: Data List - Test Step 20 A/c Cutoff Relay
- How to Check of Air Conditioning Compressor Clutch Y1 the C-36
- How to Check of Coolant Temperature Switch S128 Break Contact the C-37
- How to Check of Motronic Enigne Speed Increase Switch S109 the C-38
- How to Check of Temperature Lever End Switch S119 the C-39
- Leak Detection in Refrigerant Circuit
- How to Check of AC Coolant Valve Y14 THE C-40
- How to Check of Relay Box Fan Relay K49 THE C-41
- How to Check of Radiator Fan Relay K87 THE C-42
- How to Check of Radiator Fan Relay K52 THE C-43
- How to Check of Radiator Fan Relay K67 THE C-44
- How to Check of Radiator Fan Relay K26 THE C-45
- How to Check of Radiator Fan Motor M11 THE C-48
- How to Check of Coolant Temperature Switch S128 (Make Contact) the C-49
- Leak Detecting Agent (Tracer Dye) for AC
- How to Check of Compressor High Pressure Switch S20.3 the C-50
- How to Check of Coolant Temperature Switch S29 THE C-51
- How to Check of Coolant Pump Run-On M54 THE C-52
- Air Conditioning - General
- How to Check of Radiator Fan Motor M12PФ= the C-54
- Location of Components
- How to Check of Radiator Fan Relay K28 THE C-55
- Location of Components - Vehicles with Petrol Engine
- How to Check of Radiator Fan Relay K48 THE C-56
- Location of Components - Vehicles with Diesel Engine
- Receiver - Dryer
- How to Check of Radiator Fan Relay K22 THE C-58
- Compressor for OHC Turbodiesel Engine
- Noise Due to Flaps in AC Unit Not Being Fully Closed
- Control Valve
- Auxiliary Control Valve
- Safety Valve
- How to Check of Coolant Temperature Switch S128 (Make Contact) the C-62
- Circuit Diagram - Heating/air Conditioning
- How to Check of Compressor High Pressure Switch S20.3 the C-63
- Technical Data (Heating-Ventilation-Air Conditioning)
- How to Check of Fan Series Resistor R19 THE C-64
- Leaks, Damp from the Air-Con Housing in Footwell
- How to Check of Radiator Fan Relay K87 THE C-65
- Windows Mist Up When Air-Con Is Switched on Directly After Starting Engine
- How to Check of Radiator Fan Relay K51 THE C-66
- Musty Odour from AC in Interior
- How to Check of Radiator Fan Relay K96 THE C-67
- How to Check of Relay Box Fan Relay K48 THE C-69
- F5: Actuator Test - No. 06 A/c Cutoff Rel
- How to Check of Compressor High Pressure Switch S20.3 the C-72
- How to Check of Coolant Temperature Switch S128 the C-73
- How to Check of Coolant Temperature Switch S29 THE C-76
- Terminal Assignment
- Part Locations in Vehicle
- Heating, Ventilation, Air Conditioning (Air Conditioning - General)
- Circuit Diagram for B-10 Circuit for Air Conditioning Fan
- Circuit Diagram for B-11 Circuit for AC Compressor Clutch
- Circuit Diagram for B-12 Circuit for AC Coolant Solenoid Valve
- Circuit Diagram for B-13 Circuit for Engine Speed Increase
- Circuit Diagram for B-14 Circuit for M4, M11, M 28
- Circuit Diagram for B-15 Circuit for M4, M11, M12, M 28, M54
- Circuit Diagram for B-16 Circuit for M4, M11, M28, M 54, M57, M80
- Terminal Assignment in 6-pin Wiring Harness Plug X 30
- Terminal Assignment, Control Unit Plug
- Noises from the Air Conditioning Compressor (Delco)
- No Heating After Setting of Temperature to Cold in Connection with the A/c
- When the Air Conditioning Is Turned On, the 2nd Speed Is Activated. Downward Adjustment Is Not Possible.
- F0: Data List - Test Step 13 A/c Informat. Sw.
- Scheme of Refrigerant Circuit
- Arrangement of Components in Passenger Compartment
- Arrangement of Components in Engine Compartment - 6-Cylinder Petrol Engine (Up to MY 2000)
- Arrangement of Components in Engine Compartment - X 20 DTH, Y 22 DTH Engines Engines
- Special Service Tool for Heating - Ventilation - Air Conditioning
- Survey of Vacuum Actuation - Air Conditioning
- Location of Ecc (Electronic Climate Control) Components
- How to Remove and Install (Up to MY 2000) the Controls - Climate Control
- How to Replace (Up to MY 2000) the Controls Panel - Climate Control
- How to Replace (Up to MY 2000) the Bulbs - Controls for Climate Control
- How to Replace (Up to MY 2000) the Bracket - Controls for Climate Control
- How to Remove and Install the Servomotor - Defroster Air Valve
- How to Remove and Install the Servo Motor - Footwell Air Valve
- How to Remove and Install the Servo Motor - Centre Nozzle Air Valve
- How to Remove and Install the Servo Motor - Right Mixed Air Valve
- How to Remove and Install the Servo Motor - Left Mixed Air Valve
- How to Replace the Temperature Sensor - Right Air Outlet
- How to Replace the Temperature Sensor - Left Air Outlet
- How to Replace the Sun Sensor
- How to Replace the Fan Regulator
- Leak Detection in Refrigerant Circuit (Up to Model Year '99)
- How to Drain the Air Conditioning
- Positions of Service Connections - Petrol Engines
- Air Conditioning, Evacuate and Charge
- How to Top Up the Compressor Lubricant
- How to Remove and Install the Triple Switch
- How to Remove and Install; Pressure Switch the Motronic Switch (Fan, Remove and Install - X 20 DTH Engine)
- How to Remove and Install the Temperature Switch - Radiator Fan / Temperature Switch - Auxiliary Fan
- How to Remove and Install (Up to MY 2000) the Microswitch - Coolant Cut-Off Valve
- How to Remove and Install (Up to MY 2000) the Receiver-Dryer
- How to Remove and Install the Pipes and Hoses
- How to Remove and Install the Solenoid Valve - Coolant Cutoff Valve
- How to Remove and Install the Thermostatically Controlled Expansion Valve (Txv)
- How to Remove and Install the Evaporator
- Remove and Install Condenser - 6-cylinder Diesel Engines, V6 Petrol Engines (Up to MY 2000)
- How to Remove and Install the Condenser (4 Cylinder Engine (Up to MY 2000))
- How to Remove and Install (Up to MY 2000) the Separate Blower
- How to Remove and Install the Slider - Glove Compartment Cooling
- How to Remove and Install the Compressor (V6 Engine (Up to MY 2001))
- How to Remove and Install the Compressor (4-Cylinder Petrol Engine)
- How to Remove and Install the Compressor Pulley (Except 25 Dt, X 25 DT, Y 25 DT Engines Engines)
- How to Remove and Install the Compressor Solenoid Coil (Except 25 Dt, X 25 DT, Y 25 DT Engines)
- How to Remove and Install the Compressor Safety Valve (Except 25 Dt, X 25 DT, Y 25 DT Engines)
- Replace Compressor Control Valve - Not 25 Dt, X 25 DT, Y 25 DT Engines
- How to Remove and Install the Compressor (25 T, X 25 DT Engines (Up to Model Year '98))
- Survey - Compressor - 25 Dt, X 25 DT Engines
- How to Remove and Install - 25 Dt the Clutch - Compressor (X 25 DT Engines)
- How to Remove and Install - 25 Dt the Pulley - Compressor (X 25 DT Engines)
- How to Remove and Install - 25 Dt- the Solenoid Coil - Compressor (X 25 DT Engines)
- AC - Plastic Clip on Coolant Hose Breaks
- How to Remove and Install the AC Condenser Ribbed V-Belt
- How to Remove and Install the Support - AC Compressor
- Location of Components in Engine Compartment - 25 Dt, X 25 DT Engine (Up to Model Year '98)
- Positions of Service Connections - Diesel Engines
- How to Remove and Install the Quick-Release Fittings - Refrigerant Lines
- How to Remove and Install the Coolant Cutoff Valve (All Engines Except V6 Petrol Engines (From MY '98) and Y 25 DT Engines)
- How to Remove and Install the Compressor (X 20 DTH, Y 22 DTH Engines)
- Survey - Compressor - Except 25 Dt, X 25 DT, Y 25 DT Engines
- How to Remove and Install the Compressor Clutch (Except 25 Dt, X 25 DT, Y 25 DT Engines)
- Leak Detection in Refrigerant Circuit (As of MY '99)
- Arrangement of Components in Engine Compartment - 4-Cylinder Petrol Engine
- Arrangement of Components in Engine Compartment - X 25 DT Engine (Up to Model Year '98)
- How to Remove and Install the Receiver-Drier (Except V6 Petrol Engines (As of MY 2000) 2000))
- How to Remove and Install the Condenser (4 Cylinder Engine (As of MY 2000))
- How to Remove and Install (As of MY 2000) the Controls - Climate Control
- How to Remove and Install (As of MY 2000) the Controls Panel - Climate Control
- How to Remove and Install the Compressor (X 25 DT Engine (As of Model Year '98))
- Arrangement of Components - 6 Cylinder Engines (As of MY 2000)
- How to Remove and Install - V6 Petrol Engines (As of MY 2000) the Housing - Auxiliary Fan / Auxiliary Fan
- How to Remove and Install the Condenser / Receiver-Drier (V6 Petrol Engines (As of MY 2000))
- How to Remove and Install the Compressor (V6 Engine (As of MY 2001))
- Remove and Install Main AC Compressor Bracket
- How to Remove and Install the Compressor (Y 25 DT Engine)
- Compressor Overview - Y 25 DT Engine
- How to Remove and Install the Compressor Clutch (Y 25 DT Engine)
- How to Remove and Install the Compressor Pulley (Y 25 DT Engine)
- How to Remove and Install the Compressor Solenoid Coil (Y 25 DT Engine)
- Replace Compressor Seal Ring - All Engines Except 25 Dt, X 25 DT, Y 25 DT
- Replace Service Connection Valve - Air Conditioning Charged
- ABS
- ABS 5.3
- ABS 5.3/TC/ESP
- ABS 5/TC, ABS 5.3/TC
- Accessories
- Adhesive Foiles
- Air Conditioning
- Airbag
- Antenna
- Anti-Theft Warning System-M
- Automatic Transmission Rear Wheel Drive
- Battery
- Board Computer
- Body Equipment
- Brake Hydraulics, Brake Lines
- Brakes
- Car Level Control
- Central Door Locking System
- Central Locking with Atws (Electronic)
- Check Control
- Clutch
- Clutch and Transmission
- Communication / Navigation
- Connector pinouts
- Cooling System
- Corrosion Protection
- Diesel Engine
- DOHC Diesel Engine
- DOHC Petrol Engine
- Ecc Electronic Climate Control
- Electrical Equipment and Instruments
- Electrical Socket Front/ Rear
- Electrical Window Winders
- Electronic Cruise Control
- Electronic Ride Control
- Electronic Traction Control
- Engine and Engine Aggregates
- Engine Electrics
- Exhaust System
- Fittings, Hinges, Locks
- Frame
- Front End
- Front Wheel Brake
- Front Wheel Suspension
- Front Wheel Suspension, Wheels and Tyres
- Fuel and Exhaust System
- Fuel Injection Systems
- Fuel System
- Fuse Box
- General Vehicle Information
- Glass, Window Guides, Window Winders
- Headlamps, Lamps and Horn
- Heating, Ventilation
- Heating, Ventilation, Air Conditioning (HVAC)
- Immobiliser
- Instruments, Telltales
- Maintenance, Body and Chassis Sheet Metal Parts, Frame
- Manual Transmission Rear Wheel Drive
- Mid (Multi Info Display)
- OHC Petrol Engine
- Other Accessories
- Outside Rear View Mirror
- Paint
- Painting Repair Operations
- Painting Repair System
- Parkpilot
- Power Steering
- Radiator Grille
- Radio
- Radio Interference Suppression
- Rear Axle and Rear Wheel Suspension
- Rear Axle Rear Wheel Drive
- Rear End
- Rear Wheel Brake
- Removing and Installing Assemblies Remove
- Roof Luggage Carrier (Railing)
- Seat Heating Systems
- Seats, Upholstery, Inner Trim Panels
- Secondary Air Injection
- Service Brake, Parking Brake
- Sheet Metal Parts (Bolted)
- Sheet Metal Parts (Cement and Seal)
- Sheet Metal Parts (Welded)
- Sliding Roof
- Steering
- Steering Damper
- Steering Gear
- Steering Linkage
- Steering Wheel - Steering Column
- Switches, Control Unit, Relays, Ignition Lock
- TID (Triple Info Display)
- Trailer Hitch
- Trim Panels, Radiator Grille, Spoiler
- Trim Strips, Lettering, Coverings
- Turbo-Charging
- Wheels and Tyres
- Windscreen Wash/wipe System, Heated Screen
- Wiring Harnesses
- Xenon Control Unit (Headlamp Range Control)
- Zf Servotronic Steering