Audi A4: Battery, Starter, Generator, Cruise Control
Audi A4 (B9) 2016-2026 Service Manual / Electrical System / Electrical Equipment General Information / Battery, Starter, Generator, Cruise Control
- Battery
- Test Sequence
- Visual Inspection
- Battery Tester -VAS6161-
- Battery Tester with Printer -VAS5097A-
- Current Draw Test
- Battery Charger -VAS5095A-
- Battery Charger -VAS5900-
- Battery Charger -VAS5900- Service Charge
- Battery Charger -VAS5900- Support Mode
- Battery Charger -VAS5903-
- Refresh Charging with Battery Charger -VAS5903-
- Battery Charger -VAS5903- Support Mode
- Battery Charger -VAS5906-
- Solar Battery Maintainer -VAS6102A-
- Generator
- Voltage Regulator, Bosch Generator from 2001, Removing and Installing
- Voltage Regulator, Valeo Generator from 2001, Removing and Installing
- Ribbed Belt Pulley without Freewheel, Removing and Installing
- Special Tools
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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
Visual Inspection
WARNING
Risk of injury. Follow all warning messages and
safety precautions. Refer to
→ Chapter "Warnings and Safety Precautions".
Before any extensive measurements are taken, visuall
SEE MORE:
Brake fluid
Fig. 161 Motor compartment: cap on brake fluid reservoir
Observe the safety precautions General
information.
Checking the brake fluid level
The brake fluid reservoir is located under a cover
on the driver's side.
Park the vehicle on a level surface.
Lift the cover fig. 158 at both
openings and
Interior Door Mechanism, Removing and Installing
Removing
- Remove the door trim panel. Refer to
→ Chapter "Front Door Trim Panel, Removing and Installing".
- Place the door trim panel on a soft surface.
- Equipped on some models: Remove the door ambient lighting lamps
-3- on the back of the door trim
panel by releasing the
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