1988 Audi 5000 Quattro Service and Repair Manual

This 1988 Audi 5000 Quattro factory service and repair manual is matched to this exact year and trim, so the specifications, torque values, and diagnostic sequences inside are the ones Audi published for your car, not a generic figure borrowed from a later 5000 or a different drivetrain.

Engines covered

• 2.3L inline-five — SOHC, naturally aspirated, gasoline
• 2.2L inline-five — SOHC, turbocharged, gasoline

Body styles covered

• 4-door sedan
• 4-door wagon

Trims covered

• CS
• S

Known issues on the 1988 5000 Quattro. Three recalls are on federal record for this model year. The first covers the transaxle: differential oil is lost over time to evaporation, and low oil levels cause premature bearing and gear wear that can lead to differential failure, with drive wheels losing power or the front wheels locking and causing rapid deceleration. The second covers the fuel tank: repeated topping off during refueling reduces expansion space, letting vapors escape near the exhaust system where they could ignite. The third covers the fuel injection system: seals can harden from heat and alcohol content in some fuels, allowing fuel to drip onto hot engine components and risk an engine compartment fire. Owners have filed 1 complaint for the year. The factory diagnostic and repair procedures behind each of those systems are here.

From a differential oil check to a fuel line and injector seal inspection, it keeps you on the OEM procedure and the correct specification for your specific 1988 5000 Quattro.