Audi S4 Workshop Manuals and Repair Manuals

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Audi S4

The Audi S4, whose production first started in the year 1991, is a high performance variant to the Audi A4 compact executive car model. Originally produced only till 1994, the S4 was a performance-oriented version of the manufacturer's 100 saloon/sedan. All S4 models produced since 1997 have been modeled on the A4 with both models having undergone significant evolution one generation after another. A more powerful internal combustion engine, larger upgraded brakes, firmer suspension, larger roadwheels, and distinctive sheetmetal, styling clues and badging have always been amongst the many upgrades the S4 receives over its mainstream 100 and A4 siblings.

Audi S4 FAQ's

How do I check the transmission fluid on my Audi S4?

To check the transmission fluid on an Audi S4, the engine must be running and the transmission must be in park. Remove the transmission dipstick and wipe it clean, then reinsert it and remove it again to check the fluid level. The fluid should be at the proper level and have a clear, reddish color.

How do I know if my Audi S4 needs a new battery?

If your Audi S4 is experiencing slow cranking or difficulty starting, it may be time to replace the battery. Other signs of a failing battery include dimming headlights, electrical issues, and a battery warning light on the dashboard. It is recommended to have the battery tested regularly and replaced every 4-5 years.

How do I replace a headlight bulb on my Audi S4?

To replace a headlight bulb on an Audi S4, locate the headlight assembly and remove the cover or clip that holds it in place. Carefully remove the old bulb and replace it with a new one, making sure not to touch the glass with your bare hands. Reinstall the cover or clip and test the new bulb.

How do I replace the air filter on my Audi S4?

To replace the air filter on an Audi S4, locate the air filter housing and remove the clips or screws that hold it in place. Remove the old air filter and replace it with a new one, making sure it is properly seated and sealed. It is recommended to replace the air filter every 30,000 miles or as needed for optimal engine performance.

How do I replace the cabin air filter on my Audi S4?

To replace the cabin air filter on an Audi S4, locate the filter housing under the dashboard on the passenger side. Remove the clips or screws that hold it in place and remove the old filter. Replace it with a new one, making sure it is properly seated and sealed. It is recommended to replace the cabin air filter every 15,000-30,000 miles for optimal air quality.

How do I replace the windshield wipers on my Audi S4?

To replace the windshield wipers on an Audi S4, lift the wiper arm away from the windshield and press the tab or button to release the old wiper blade. Slide the new wiper blade onto the arm and make sure it is securely attached. It is recommended to replace the wiper blades every 6-12 months for optimal visibility.

How do I reset the maintenance schedule on my Audi S4?

To reset the maintenance schedule on an Audi S4, press and hold the reset button located on the dashboard until the service message appears. Release the button and then press and hold it again until the message turns off. The maintenance schedule should be reset and the next service interval should be displayed on the dashboard.

How often do I need to replace the brake pads on my Audi S4?

The brake pads on an Audi S4 should be inspected regularly and replaced when they reach a thickness of 3mm or less. The frequency of replacement depends on driving habits and conditions. Heavy braking or driving in hilly or mountainous areas can cause brake pads to wear out faster.

How often should I change the oil in my Audi S4?

It is recommended to change the oil in your Audi S4 every 10,000 miles or once a year, whichever comes first. Regular oil changes help to ensure proper engine performance and extend the life of your vehicle. It is important to also check the oil level regularly and top off if necessary.

What is the recommended coolant for an Audi S4?

The recommended coolant for an Audi S4 is G13 coolant, which is a long-life ethylene glycol-based coolant. It is important to use the correct coolant to prevent engine damage and maintain proper cooling system performance. The coolant should be changed every 5 years or 75,000 miles.

What is the recommended oil type for an Audi S4?

The recommended oil type for an Audi S4 is 5W-40 synthetic oil. This type of oil provides excellent lubrication and protection for the engine, especially during extreme temperatures and high-performance driving. It also helps to maintain engine cleanliness and prevent sludge buildup.

What is the recommended power steering fluid for an Audi S4?

The recommended power steering fluid for an Audi S4 is Pentosin CHF 202. It is important to use the correct fluid to prevent damage to the power steering system and maintain proper performance. The fluid should be checked regularly and topped off as needed.

What is the recommended spark plug gap for an Audi S4?

The recommended spark plug gap for an Audi S4 is 0.032-0.036 inches. Proper spark plug gap helps to ensure optimal engine performance and fuel efficiency. It is important to use the correct spark plugs and follow the manufacturer's recommendations for replacement.

What is the recommended tire pressure for an Audi S4?

The recommended tire pressure for an Audi S4 varies depending on the tire size and load capacity. It is important to check the owner's manual or the tire information placard located on the driver's side door jamb for the proper tire pressure. Proper tire pressure helps to ensure safe handling, optimal fuel efficiency, and even tire wear.

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