Removing and installing battery in luggage compartment: Audi Q3

🧭 Before you start

Fits: Audi Q3 (8U, 2011–2018); platform code 84

Don't miss

• If electrical connector (2) at battery monitor control unit J367(item 3) is not attached when connecting battery, make sure to wait 30 seconds before attaching electrical connector.
• Check that battery is firmly secured after installing.
• If the battery is renewed, the new battery must be adapted .
• 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. Switch off ignition.
2. Versions equipped with ignition lock: Remove ignition key.
3. Remove luggage compartment floor panel.
4. On vehicles equipped with subwoofer: Unplug electrical connector (4), unscrew bolt (2) and remove subwoofer (3).
5. Remove moulded insert (1).

6. Remove bolts (arrows).
7. If fitted, move electrical wiring harness (3) clear.
8. Detach battery cover (1).
9. Detach heat shield (2) from battery.
10. Pull off cover (8) over negative battery terminal.
11. Slacken off nut (1) several turns and disconnect battery clamp (2) of earth cable from negative battery terminal.
12. Pull off cover (5) over positive battery terminal.
13. Slacken off nut (3) several turns and disconnect battery clamp (4) of positive cable together with main fuse holder from positive battery terminal.
14. Remove bolt (6) on battery retainer plate (7).
15. Pull off hose (9) for central gas venting system.
16. Pull battery out of battery tray and lift out of luggage compartment. [Note: Only install maintenance-free batteries with the specifications "“TL82506”" (from December 1997 onwards) and "“VW75073”" (from August 2001 onwards).Batteries from the Audi parts range feature a base strip adapter for matching to different retainer flanges. The battery operating instructions give details of when and how to use the base strip adapter.]
17. ⚠ Observe environmental requirements.When disposing of used batteries, always observe the required disposal procedures for batteries and sulphuric acid Electrical system; General information27Battery. — Insert battery in battery tray (1) so that battery base strip engages in retainer flanges (arrows) of battery tray.
18. Fit battery retainer plate (1).
19. Tighten bolt (2) for battery retainer plate.
20. Fit hose (6) for central gas venting system.
21. Connect up battery in the following sequence with ignition and electrical equipment switched off:
22. First connect battery clamp (4) of positive cable by hand to positive battery terminal "“+”" and tighten nut (3).
23. Close cover (5) over positive battery terminal. [Note: If electrical connector (2) at battery monitor control unit J367(item 3) is not attached when connecting battery, make sure to wait 30 seconds before attaching electrical connector.]
24. Attach battery clamp of earth cable to negative battery terminal "“–”" by hand and tighten nut (1).
25. Check that battery is firmly secured after installing.
26. Close cover over negative battery terminal.
27. If the battery is renewed, the new battery must be adapted .
28. Select Diagnosis mode and start diagnosis.
29. Select Test plan tab.
30. Select Own test then the following options one after the other: [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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