Audi A4: Customer information
Audi A4 (B9) 2016-2026 Owner's Manual / Customer information
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Air Filter
Overview - Air Filter Housing
1 - Snow Screen
Market-Specific Version
2 - Air Duct
On the lock carrier
Clean off any salt and dirt
3 - Water Drain
Clean
4 - Mount
For the air filter housing
5 - Sealing Piece
6 - Air Duct
Mar
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
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