Disconnecting and connecting battery — AUDI

🧭 Before you start

Fits: Audi A5 (8T, 2007–2016)

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• 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.

📋 Procedure

1. ⚠ 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).Vehicles with TDI engine (SCR)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.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.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. — Switch off ignition and take out ignition key.
2. Lift luggage compartment floor panel and hook onto body.
3. Remove nut (1) and detach cover (2) for tool kit.
4. Take out luggage compartment cover.
5. Remove nut (1) and detach mounting for tool kit (2).

6. Lift up cover (1) over negative terminal slightly (arrow).
7. Slacken off nut several turns and disconnect battery clamp (2) of earth cable from battery terminal.
8. Open cover (1) over negative battery terminal.
9. Slacken off nut (3) several turns and disconnect battery clamp (2) of earth cable from battery terminal.
10. Unplug electrical connector (2) at battery monitor control unit J367(item 1).
11. When connecting battery, attach battery clamp (3) of earth cable to negative battery terminal "“–”" by hand and tighten nut.
12. Reconnect connector at battery monitor control unit J367.
13. Install cover for tool kit General body repairs, interior70Luggage compartment trim panels; Exploded view - luggage compartment floor. [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.]

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