Audi A4: Electrical Equipment General Information
Audi A4 (B9) 2016-2026 Service Manual / Electrical System / Electrical Equipment General Information
- Battery, Starter, Generator, Cruise Control
- Windshield Wiper/Washer System
- Exterior Lights, Switches
- Interior Lights, Switches
- Wiring
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Battery
Battery General Information
To guarantee a long service life, the Battery -A- must be
checked, serviced and maintained as described in this manual.
The Battery -A- supplies the power to start the eng
Test Sequence
Battery, Checking, Vehicles with Battery Monitoring Control Module J367
or Energy Management Control Module J644 and Data Bus On Board Diagnostic
Interface J533
In certain model series the followi
SEE MORE:
Overview - Lower Control Arm and Ball Joint
1 - Wheel Bearing Housing Side Bonded Rubber Bushing
Replacing. Refer to
→ Chapter "Control Arm Ball Bearing, Replacing, Wheel Bearing Housing
Side".
2 - Bolt
Replace after removing
3 - Subframe Side Bonded Rubber Bushing
Replacing. Refer to
→
Active Steering Safety Lock (Locking Solenoid), Removing and Installing
Special tools and workshop equipment required
Vehicle Diagnostic Tester
Torque Wrench 1783 - 2-10Nm -VAG1783-
Removing
Note
To avoid a crooked steering wheel, the steering wheel must
not be turned and the straight-ahead position or angle of the
front wheels must not be changed when t
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