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Disconnecting and connecting battery in luggage compartment > < Exploded view of battery

A1

Disconnecting and connecting battery in engine compartment
Disconnecting and connecting battery in engine compartment
  Caution
Risk of accident.
Contrary to the following description, the battery must be disconnected with the ignition SWITCHED ON when working on pyrotechnic components (e.g. airbags, belt tensioners) → Rep. gr.69.
   
Disconnecting
–  Switch off ignition.
–  Versions equipped with ignition lock: Remove ignition key.
–  Open cover over negative battery terminal.
–  Slacken off nut -1- several turns and disconnect battery clamp -2- of earth cable from negative battery terminal.
  Note
Disregard -item 3-.
  A27-10278
Connecting
l  Tightening torque → Chapter
–  Unplug electrical connector -2- at battery monitor control unit -J367--item 3-.
–  When connecting battery, attach battery clamp of earth cable to negative battery terminal „–“ by hand and tighten nut -1-.
–  Reconnect connector at battery monitor control unit -J367-.
The following measures are required after re-connecting the battery:
t  Activate automatic open/close function of electric window regulators → Owner's Manual for the vehicle.
t  Interrogate event memories of all control units and erase „Low voltage“ entry → Vehicle diagnostic tester.
  Note
After reconnecting the voltage supply, it is possible that the ESP warning lamp will not go out until the vehicle has been driven several metres.
  A27-10252

Disconnecting and connecting battery in luggage compartment > < Exploded view of battery