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2020 Audi S4 Service and Repair Manual
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$40.99 USD
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Covers all 2020 S4 trims — Prestige Sedan 4-Door, Premium Sedan 4-Door, Progressiv Sedan 4-Door +2 more ·
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$40.99
2020 Audi S4 Service and Repair Manual
Regular price
$40.99 USD
Unit price
This factory service and repair manual for the 2020 Audi S4 is built for this exact year, engine and trim, covering the 3.0L V6 (engine code CWGD) with the specifications, torque figures, and procedures Audi actually published for it, not an approximation drawn from a related model.
Engines covered
- 3.0L V6 — DOHC, turbocharged, gasoline
Body styles covered
- 4-door sedan
Trims covered
- Premium
- Premium Plus
- Prestige
- Progressiv
- Technik
Known issues on the 2020 S4. Three recalls are on federal record for this model year. The first covers rear axle misalignment, which after a prior repair may not have been re-inspected, leading to premature or uneven tire wear and increasing the risk of a crash. The second covers the rear axle's trailing arm lock nut, which can break due to stress corrosion, misaligning the axle and causing a loss of control. The third covers the passenger seat's occupant detection wiring, where a faulty connection to the heater cable can make the system misdiagnose a fault and disable the passenger air bag. Owners have filed 16 complaints for the year, and no technical service bulletins are logged. The factory diagnostic and repair procedures behind each of those systems are here.
From a rear axle alignment check to tracing a passenger air bag disable fault, it keeps you on the OEM procedure and the correct specification for your specific 2020 S4.
Volkswagen Group of America, Inc. (Audi) is recalling certain 2019-2021 Audi A5 Sportback, RS5 Coupe, RS5 Sportback, S5 Sportback, 2020-2021 A4 Allroad, A4 Sedan, A5 Cabriolet, A5 Coupe, A6 Allroad, A6 Sedan, A7, A8, Q5, S4 Sedan, S5 Coupe, S5 Cabrio
Consequence
Rear axle misalignment may cause premature or uneven tire wear, increasing the risk of a crash.
Remedy
Dealers will inspect the rear axle, adjust the alignment as necessary, and replace any prematurely or unevenly worn tires, free of charge. Owner notification letters were mailed March 3, 2022. Owner
Volkswagen Group of America, Inc. (Audi) is recalling certain 2021 Q7, Q8, Q5 Sportback, SQ5 Sportback, RS6 Avant, RS7, RS Q8, 2020-2021 Audi S6 sedan, Q5, A8, S8, A7, A6 Allroad, A5 Cabriolet, A4 sedan, A4 Allroad, SQ5, S7, A6 sedan, S5 coupe, S4 se
Consequence
A broken lock nut may misalign the rear axle, causing a loss of control and increasing the risk of a crash.
Remedy
Dealers will replace the lock nuts and, if necessary, the associated bolts, free of charge. Owner notification letters were mailed June 4, 2021. Owners may contact Audi customer service at 1-800-253
Volkswagen Group of America, Inc. (Audi) is recalling certain 2017-2020 A4 Allroad, A4 Sedan, 2018-2019 RS5 Coupe, 2019 RS5 Sportback, 2018-2020 A5 Cabriolet, A5 Coupe, A5 Sportback, S4 Sedan, S5 Cabriolet, S5 Coupe, and Audi S5 Sportback vehicles.
Consequence
A disabled passenger air bag increases the risk of injury in the event of a crash.
Remedy
Dealers will replace the connecting cable and either the heating mat or entire seat cover, free of charge. Owner notification letters were mailed January 7, 2022. Owners may contact Audi customer se
This bulletin provides a statement regarding the bottleneck of supply for VW approved oil types VW 504.00 and VW 507.00.
This bulletin provides information when DTC B105A1A, B103E25 is stored in 0017; fuel tank level implausible.
This bulletin provides information when DTC B105A1A, B103E25 is stored in 0017; fuel tank level implausible.
This service information TSB provides warranty coverage information for vehicles with a broken sunroof panel.
This bulletin provides informatoinw hent here are scratches or a coating on the cover of the instrument cluster, or particles inside of the housing.
This bulletin provides information when there is a film/visible rings on the clear glass cover of the headlight when the dipped beam is switched on.
This bulletin provides information when the pop-up for massage functions does not appear.
This bulletin provides informaiton when the engine is not running smoothly, misfiring.
Showing the 8 most recent of 909 technical service bulletins on file with NHTSA.
My instrument cluster and its replacements have malfunctioned multiple times. The original instrument cluster/virtual cockpit failed to boot and had a black/blank screen on 4/19/2024 at 29,687 miles a
The Audi MMI malfunctions and reboots randomly while driving. Possibly being a software issue. There is a TSB code that the dealer used to reference for me ( TSB 2078437/1), but I cannot find it on th
The MMI reboots continuously throughout my drive - whether it is 1 minute or an hour. It does this without a Bluetooth connection or wired connection. There is no ability to use hands free calling,
I am submitting a formal complaint regarding a persistent and dangerous issue with the MMI (Multi Media Interface) system in my 2020 Audi S4. Since February 2025, the system has been spontaneously reb
The main infotainment system is stuck restarting every 1-2 minutes. When the car is put into reverse, the rear back up camera will turn off while the vehicle is in motion and not resume.
The vehicle software (known as Audi MMI) has been continuously rebooting every 30 seconds after the vehicle is started. This causes the entire dashboard (and entertainment screen) to repeatedly reboot
The MMI (multimedia interface) screen goes dead and reboots frequently (every 2-5 minutes) while driving. It is extremely frustrating and distracting. In addition, when the screen blacks out while
The Multimedia Interface (MMI) Touchscreen Radio will constantly reboot while driving regardless of variables. Diagnosis’ have proven problem to be undeterminable, this is a serious safety concern as
Showing the 8 most serious of 16 complaints filed with NHTSA.
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