2023 Audi S4
Specs, maintenance, fault codes, recalls and repair help for the 2023 Audi S4, in one place.
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Vehicle information
Make: Audi
Model: S4
Model year: 2023
Class: Passenger vehicle
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Common problems
Checking NHTSA owner complaints…
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Fluids & capacities · 3.0L Turbo V6
- A/C Refrigerant · R-1234yf
- Brake Fluid · DOT 4 Low Viscosity (FMVSS 116 DOT 4 / VW 501 14)1 qt / 0.95 L
- Coolant · G13 (pink/purple) 50/50 premix (TL 774-J / VW G13)10.6 qt / 10.03 L
- Engine Oil · 0W-20 full synthetic (VW 508 00 / 509 00)6.9 qt / 6.53 L
- Front Differential · Audi G 052 175 A2 75W-90 (API GL-5)1.1 qt / 1.04 L
- Power Steering · none — electric power steering
- Rear Differential · Audi G 052 175 A2 75W-90 (API GL-5)0.9 qt / 0.85 L
- Transfer Case · none — integrated with transmission
- Automatic Transmission · Audi G 055 540 A2 (8-speed ZF) (ZF Lifeguard 8)8.5 qt / 8.04 L
- Washer Fluid · windshield washer fluid concentrate6.3 qt / 5.96 L
Source: Open Labor Project · Confirm with your owner's manual
Key torque specs
- ABS Module Bolts7 lb-ft / 10 N·m
- Brake Line Fittings11 lb-ft / 15 N·m
- Caliper Mounting Bolts68 lb-ft / 93 N·m
- Wheel Lug Nuts89 lb-ft / 121 N·m
- Caliper Bracket Bolts - Front88 lb-ft / 120 N·m
- Caliper Slide Pin Bolts26 lb-ft / 35 N·m
- Wheel Bearing Hub Bolts81 lb-ft / 110 N·m
- AC Line Fittings15 lb-ft / 20 N·m
- Compressor Bolts26 lb-ft / 36 N·m
- AC Compressor Bolts18 lb-ft / 25 N·m
- Expansion Valve7 lb-ft / 10 N·m
- Expansion Valve Fitting8 lb-ft / 11 N·m
Source: Open Labor Project · Estimated values; verify in the service manual
Maintenance
Service intervals (normal driving)
- Engine oil and filter5,000 mi / 12 mo
- Engine air filter40,000 mi / 48 mo
- Cabin air filter20,000 mi / 24 mo
- Tire rotation5,000 mi / 6 mo
- Brake system inspection10,000 mi / 12 mo
- Brake fluid replacement20,000 mi / 24 mo
- DSG transmission fluid and filter40,000 mi / 48 mo
- Quattro rear differential fluid40,000 mi / 48 mo
- Transfer case fluid40,000 mi / 48 mo
- Engine coolant replacement90,000 mi / 72 mo
- Spark plugs60,000 mi / 72 mo
- Accessory drive belt80,000 mi / 96 mo
- Multi-point inspection10,000 mi / 12 mo
- Battery test20,000 mi / 24 mo
Source: Open Labor Project · Draft schedule; your owner's manual is the final word
Parts & fitment
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Repair costs
Estimated labor times
- 100K Service3.8–5.5 hr
- 30K Service2–3 hr
- 60K Service3.8–5.5 hr
- 90K Service3.8–5.5 hr
- ABS Module2–3.2 hr
- ABS Pump2.6–3.8 hr
- ABS Tone Ring - Front1.3–1.9 hr
- ABS Tone Ring - Rear1.5–2.3 hr
- ABS Wheel Speed Sensor - Front1–1.6 hr
- ABS Wheel Speed Sensor - Rear0.9–1.8 hr
- AC Accumulator2–3.2 hr
- AC Clutch Coil1.8–2.6 hr
- AC Compressor3.8–5.5 hr
- AC Compressor Clutch3–4.4 hr
- AC Compressor Oil Add0.3–0.8 hr
Source: Open Labor Project · Estimates, not book times. Shops may quote differently
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Fleet Maintenance
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Other Audi S4 years
Sources
Fluids, battery, torque, service intervals and estimated labor times: Open Labor Project. Recalls and complaints: NHTSA. Fuel economy and configurations: FuelEconomy.gov.
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