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Audi A4 (B9) 2016-2022 Owner's Manual: Care and cleaning

General information

Regular, proper care helps to maintain your vehicle's value. It can also be a requirement when submitting warranty claims for corrosion damage and paint defects on the body.

The required cleaning and care products can be obtained from an authorized Audi dealer or authorized Service Facility. Read and follow the instructions for use on the packaging.


For the sake of the environment

Car washes

The longer that deposits such as insects, bird droppings, tree sap or road salt remain on the vehicle, the more the surface can be damaged. High temperatures such as those caused by sunlight increase the damaging effect.

Before washing, rinse off heavy deposits with plenty of water.

Stubborn deposits such as bird droppings or tree sap are best removed with plenty of water and a microfiber cloth.

Also, wash the underside of your vehicle once road salt stops being used for the season.

Pressure washers

When washing your vehicle with a pressure washer, always follow the operating instructions provided with the pressure washer. This is especially important in regard to the pressure and spraying distance. Do not aim the spray directly at the seals on the side windows, doors, lids or the sunroof* or at tires, rubber hoses, insulating material, sensors* or camera lenses*. Maintain a distance of at least 16 inches (40 cm).

Do not remove snow and ice with a pressure washer.

Never use cone nozzles or high pressure nozzles.

The water temperature must not be above 140 ºF (60 ºC).

Automatic car wash

Spray off the vehicle before washing.

Make sure that the windows and roof* are closed and the windshield wipers are off. Make sure that the vehicle is still able to roll during the washing process in the car wash. Follow instructions from the car wash operator, especially if there are accessories attached to your vehicle.

If possible, use car washes that do not have brushes.

Washing by hand

Clean the vehicle starting from the top and working downward using a soft sponge or cleaning brush. Use solvent-free cleaning products.

Washing vehicles with matte finish paint by hand

To reduce the risk of damaging the paint when washing, first remove dust and large particles from your vehicle. Insects, grease spots, and fingerprints are best removed with a special cleaner for matte finish paint.

Apply the product using a microfiber cloth. To reduce the risk of damaging the paint surface, do not use too much pressure.

Rinse the vehicle thoroughly with water. Then clean using a neutral shampoo and a soft microfiber cloth.

Rinse the vehicle thoroughly again and let it air dry. Remove any water residue using a chamois.



For the sake of the environment

Only wash the vehicle in facilities specially designed for that purpose. This will reduce the risk of dirty water contaminated with oil from entering the sewer system.

Cleaning and care information

When cleaning and caring for individual vehicle components, refer to the following tables. The information contained there is simply recommendations. For questions or for components that are not listed, consult an authorized Audi dealer or authorized Audi Service Facility. Also follow the information found in .

Exterior cleaning

Care and cleaning

Care and cleaning

a) Mild soap solution: maximum two tablespoons of Interior cleaning neutral soap in 1 quart (1 liter) of water

Interior cleaning

Care and cleaning

Care and cleaning

a) Mild soap solution: maximum two tablespoons of neutral soap in 1 quart (1 liter) of water


The windshield must not be treated with water- repelling windshield coating agents. Under unfavorable conditions, such as wetness, darkness, and when the sun is low, these coatings can cause increased glare, which increases the risk of an accident. They can also cause wiper blade chatter.



Taking your vehicle out of service

If you would like to take your vehicle out of service for a long period of time, contact an authorized Audi dealer or authorized Audi Service Facility.

You can obtain information about the steps to complete depending on the conditions for taking the vehicle out of service (duration, location, etc.).

Tire pressure monitoring system
General notes Each tire, including the spare (if provided), should be checked monthly when cold and inflated to the inflation pressure recommended by the vehicle manufacturer on the vehicle placard o ...

Do It Yourself

Other materials:

Tie Rod End Replacement
1. Remove the snap pin. 2. Loosen the tie-rod end locknut. 3. Detach the tie-rod end from the steering knuckle using the SST. 4. Remove the tie-rod end locknut. 5. Place alignment marks as shown in the figure for proper installation. 6. Remove the tie-rod end. 7. Align th ...

Steering Gear And Linkage Disassembly
CAUTION: To prevent damage to the steering gear, secure it to the vise using a copper plate or clean cloth. 1. Disassemble in the order indicated in the figure. 1 Dust cover 2 O-ring 3 Tie-rod end ...

Refrigerant Charging
CAUTION: Do not use a different type of refrigerant or charge beyond the specified level. Otherwise, cooling ability will be lowered and the A/C compressor could be damaged. Charging Recycled HFC-134a Refrigerant 1. Connect an HFC-134a recovery/recycling/recharging device to the ...

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