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Final drive, differential, differential lock > < Removing and installing mechatronic unit

A4 Mk3

Removing and installing wiring harness in gearbox
Removing and installing wiring harness in gearbox
Removing
  Caution
The gearbox control unit (mechatronic unit) can be damaged by electrostatic discharge.
t  Before touching or removing the mechatronic unit, always discharge any static electricity by touching an earthed object with your hand.
t  DO NOT touch contacts in 16-pin connector with your hands, as static discharge can seriously damage the control unit and mechatronic unit.
–  Remove mechatronic unit → Chapter.
   
–  Touch gearbox housing with your hand (without gloves) to discharge any static electricity.
–  Turn fastener anti-clockwise -arrow- and unplug electrical connector on gearbox.
  A37-10859
–  Pull off retaining clip -A- for wiring harness connector.
  Note
-Arrows- can be disregarded.
–  Push wiring harness connector -B- inwards into gearbox and detach wiring harness.
Installing
Installation is carried out in reverse sequence; note the following:
–  Renew O-rings on connector for wiring harness and lightly lubricate with ATF.
–  Install wiring harness connector in gearbox housing. Note correct position.
  A39-0387
–  Attach retaining clip -A- for wiring harness connector -B-.
–  Install mechatronic unit → Chapter.
  A39-0387

Final drive, differential, differential lock > < Removing and installing mechatronic unit