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Removing and installing battery > < Disconnecting and connecting battery

A4 Mk3

Removing and installing earth cable with battery monitor control unitJ367
Removing and installing earth cable with battery monitor control unit -J367-
Removing
–  Switch off ignition and take out ignition key.
  Caution
Vehicles with TDI engine (SCR)
t  After the ignition is switched off, the reducing agent is automatically drawn back into the active tank for reducing agent from the metering line going to the injector for reducing agent -N474-.
t  Before working in this area, you must therefore wait until the reducing agent has been completely drawn out of the metering line; this can take up to 10 minutes after the ignition has been switched off.
t  For the same reason, it is important to wait until the reducing agent has been drawn back (i.e. 10 minutes) before disconnecting the battery.
   
Saloon:
–  Lift luggage compartment floor panel and hook onto body.
–  Remove nut -1- and detach cover -2- for tool kit.
–  Remove mounting for tool kit.
  A27-10139
Avant:
–  Take out luggage compartment floor -2-.
–  Unscrew nut -1- and take out temporary spare wheel -3- (if fitted).
–  If fitted, remove subwoofer → Rep. gr.91.
  A27-10169
Cover for negative terminal (version 1):
–  Lift up cover -2- over negative terminal slightly -arrow-.
–  Slacken off nut several turns and disconnect battery clamp -1- of earth cable from battery terminal.
–  Unplug electrical connector -3-.
–  Remove nut -6- and detach earth cable -5- with battery monitor control unit -J367--item 4-.
  A27-10107
Cover for negative terminal (version 2):
–  Open cover -2- over negative battery terminal.
–  Slacken off nut several turns and disconnect battery clamp -1- of earth cable from battery terminal.
–  Unplug electrical connector -3-.
–  Remove nut -6- and detach earth cable -5- with battery monitor control unit -J367--item 4-.
Installing
l  Tightening torque: Saloon → Chapter, Avant → Chapter.
Installation is carried out in the reverse order; note the following:
–  Connect battery → Anchor.
–  If fitted, install subwoofer → Rep. gr.91.
  A27-10116

Removing and installing battery > < Disconnecting and connecting battery