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Passive tank for reducing agent with attached components - exploded view > < Checking control unit for reducing agent metering systemJ880

A4 Mk3

Removing and installing control unit for reducing agent metering systemJ880
Removing and installing control unit for reducing agent metering system -J880-
  Note
Fitting location: control unit for reducing agent metering system -J880- is underneath active tank.
Removing
Observe safety precautions → Chapter.
Observe rules for cleanliness → Chapter.
   
  Caution
To prevent irreparable damage to the electronic components when disconnecting the battery:
t  Observe notes on procedure for disconnecting the battery.
t  Observe necessary waiting time before disconnecting the battery → .
t  Always switch off the ignition before disconnecting the battery.
–  Disconnect battery → Electrical system; Rep. gr.27.
  A27-10170
–  Remove bolt and nuts -arrows- and detach cover for active tank.
  A20-10704
–  Release electrical connector -4--arrow- and unplug.
–  Remove bolts -1- and -3- and detach control unit for reducing agent metering system -J880--item 2-.
Installing
Installation is carried out in the reverse order; note the following:
l  Tightening torque → Chapter „Control unit for reducing agent metering system - exploded view“
–  Connect battery and perform steps required after re-connecting battery → Rep. gr.27.
  A20-10705

Passive tank for reducing agent with attached components - exploded view > < Checking control unit for reducing agent metering systemJ880