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Repair manual
Gearbox assembly Citroen C8 I
Step-by-step instructions on "Gearbox assembly" for Citroen C8 I (2002–2008). Pick an article — removal, installation, adjustment and diagnostics with illustrations.
Gearbox
- Presentation: manual gearbox ML6C
- Tightening torques: ML6C Reinforced manual gearbox (DW12BTED4)
- Identification - data: ML6C Reinforced type manual gearbox (DW12TED4, DW12BTED4, 2.0 HDi 163 FAP, DW10UTED4, DW10BTED4)
- Presentation: tooling
- Identification - data: automatic gearbox type AM6 (2.0 HDi 163 FAP, DW12BTED4)
- Tightening torques: automatic gearbox type AM6
- Presentation: recommended tools
- Tightening torques: BE4 manual gearbox
- Tightening torques: ML6 manual gearbox
- Tightening torques: automatic gearbox
- Tightening torques: manual gearbox/engine coupling
- Checking and adjusting values: BE manual gearbox
- Data: manual gearbox (type BE4)
- Data: 4HP20 automatic gearbox
- Data: manual gearbox ML5C
- Data: autoactive automatic gearbox AL4
- Identification - tightening torques: gearbox
- General specifications: manual gearbox ML6C
- Tightening torques: ML6C manual gearbox
- Tightening torque: manual gearbox
- Data: manual gearbox
- Check: automatic gearbox line pressure (types AL4 and AT8)
- Check - adjustment: set of primary shaft bearings
- Check - adjustment: set of primary shaft bearings — variant 2
- Adjustment: multifunction switch
- Adjustment: internal selector control
- Removing - refitting: gearbox (DW12BTED4)
- Removing - refitting: driveshaft seal
- Removal - refitting: automatic gearbox ECU (DW12BTED4, 2.0 HDi 163 FAP)
- Removal - refitting: hydraulic block and solenoid valves (2.0 HDi 163 FAP)
- Removal / refitting: heat exchanger (2.0 HDi 163 FAP, DW12BTED4)
- Removal - refitting: oil temperature sensor connection (2.0 HDi 163 FAP)
- Removing - refitting: automatic gearbox type AM6 (DW12BTED4)
- Dismantling: manual gearbox
- Refitting: manual gearbox
- Stripping - re-assembling: components internal to the gearbox
- Stripping - re-assembling: components internal to the gearbox — variant 2
- Refitting: manual gearbox — variant 2
- Dismantling: manual gearbox — variant 2
- Removing - refitting: driveshaft seal — variant 2
- Removing - refitting: gearbox (2.0 HDi 163 FAP)
- Removing - refitting: automatic gearbox (2.0 HDi 163 FAP)
- Removing - refitting: hydraulic block and solenoid valves
- Removing - refitting: heat exchanger
- Removing - refitting: gear change shaft seal
- Removing - refitting: multifunction switch
- Removing - refitting: heat exchanger — variant 2
- Removing - refitting: input speed sensor and output speed sensor
- Removing - refitting: multifunction switch — variant 2
- Removing - refitting: gearbox output speed sensor
- Removing - refitting: automatic gearbox fluid temperature sensor
- Removing - refitting: oil temperature sensor connection
- Removing - refitting: the heat exchanger flow control electrovalve
- Removing - refitting: gearbox input speed sensor connection
- Removing - refitting: BVA oil pressure sensor
- Removing - refitting: hydraulic valve block
- Removing - refitting: gearbox
- Removing - refitting: AL4 automatic gearbox
- Removing - refitting: gearbox — variant 2
- Removing - refitting: driveshaft seal — variant 3
- Removing - refitting: 4HP20 automatic gearbox
- Removing - refitting: gearbox (DW12TED4)
- Removing - refitting: gearbox (DW10UTED4, DW10BTED4)
- Replacement: multifunction switch gear selector shaft seal
- Replacement: AL4 automatic gearbox
- Drain and refill - refilling - level: autoactive automatic gearbox AL4
- Drain and refill - refilling - level: automatic gearbox
- Drain and refill - refilling - check: fluid level
- Draining - filling - level: autoactive automatic gearbox AL4
- Drain and refill - refilling: manual gearbox ML6C
- Overhaul: BE4 manual gearbox (Summary)
- Overhaul: ML6 manual gearbox (Summary)
- Cleaning and refitting conditions: gearbox
- Cleaning and refitting conditions: gearbox — variant 2
- Cleaning and refitting conditions: ML6 manual gearbox
- Unlocking: "shift lock" function or Parking position (2.0 HDi 163 FAP, DW12BTED4)
- Initialisation procedure (initialisation): automatic gearbox ECU
- Initialisation procedure: automatic gearbox ECU
- Unlocking: function SHIFT-LOCK
- Greasing: splines of the primary shaft
- Stripping: gearbox (type ML5C)
- Re-assembling: ML5C gearbox
- Modification: Manual gearbox
- Modification: RH differential gear and RH transmission sleeve
- Modification: input shaft (manual gearboxes ML5C, MLGU and MLUC)
- Modification: pressure modulation electrovalves for auto-active automatic gearbox (type AL4)
- Modification: AL4 automatic gearbox oil overflow and drain plug
- Modification: BE4/5 gearbox secondary shaft
- Modification: gearbox casing (ML6C)
- Help in diagnosis: Manual gearbox (technical note)
- Diagnostic: oil leak
- Diagnostic: accelerator pedal initialisation procedure on AL4 automatic gearbox
- Information: fault code P0938 (automatic transmission control unit)
- Table: fault codes - automatic gearbox ECU AT6/AM6
- Table: fault codes - automatic gearbox ECU AL4
- Table: fault codes - automatic gearbox ECU AM6 (Summary)
- Help in diagnosis: diagnostic warning lamp lights - AT6 and AM6 automatic gearboxes
- Precautions to be taken: automatic gearbox
- Precautions to be taken: 4HP20 automatic gearbox
- Precautions to be taken: autoactive automatic gearbox (type AL4)
- Procedure before repairs: 4HP20 automatic gearbox
- Procedure before repairs: autoactive automatic gearbox (type AL4)
- Procedure before repairs: automatic gearbox type AM6c
Gearbox controls
- Identification - data: gear controls (DW10UTED4, 2.0 HDi 163 FAP, DW12BTED4, DW10BTED4, DW12TED4)
- Identification - data: gear selector control
- Remove - refit: gearbox controls
- Removing - refitting: gearbox controls
- Removing - refitting: gear selector control
- Removing - refitting: gear selector control (2.0 HDi 163 FAP)
- Removing - refitting: gearbox controls — variant 2
- Removing - refitting: gearbox controls — variant 3
- Removing - refitting: selection control
- Removing - refitting: selection control — variant 2
- Removing - refitting: gearbox controls — variant 4
Clutch
- Removing - refitting: double damping flywheel (DVA) (DW10ATED4, DW10BTED4, DW10UTED4)
- Tightening torques: clutch
- Identification - data: clutch (DW12BTED4)
- General specifications: clutch
- Removing - refitting: hydraulic clutch stop (DW12BTED4)
- Removing - refitting: hydraulic clutch control (DW12BTED4)
- Removing - refitting: clutch mechanism
- Removing - refitting: hydraulic clutch control
- Removing - refitting: hydraulic clutch control (EW10J4, DW12TED4, DW10ATED4, EW12J4)
- Removing - refitting: clutch mechanism (DW10UTED4, DW10BTED4)
- Removing - refitting: hydraulic clutch control (DW10ATED4, DW10BTED4, DW10UTED4, EW12J4, EW10J4, EW10A, DW12TED4)
- Bleeding: hydraulic clutch circuit (DW12BTED4)
- Bleeding: non-piloted manual gearbox hydraulic clutch control
- Bleeding: hydraulic clutch control
- Bleeding: hydraulic clutch control — variant 2
- Help in diagnosis: clutch (technical note)
- Removing - refitting: torque converter and its seal (2.0 HDi 163 FAP, DW12BTED4)
- Removing - refitting: converter and its seal
- Removing - refitting: converter and its seal — variant 2
- Help in diagnosis: difficult/impossible to change gear (hydraulic clutch control)