2020 Audi A3 Service and Repair Manual

This 2020 Audi A3 factory service and repair manual is built around the exact year, engine and trim on your title, so the torque values, wiring diagrams and diagnostic steps you're following are the ones Audi issued for the 2.0L turbocharged four-cylinder (engine code CZRA) actually under your hood, not an approximation from another A3 year.

Engines covered

• 1.4L inline-four (85 cu in) — DOHC, turbocharged, gasoline
• 2.0L inline-four (121 cu in) — DOHC, turbocharged, gasoline

Body styles covered

• 4-door sedan
• 2-door convertible

Trims covered

• Dynamic
• Komfort
• Premium
• Premium Plus
• Progressiv
• S Line
• Select
• Technik

Known issues on the 2020 A3. Three recalls are on federal record for this model year. The first covers the passenger occupant classification sensor: the passenger occupant detection system can malfunction and switch off the passenger air bag even with the seat occupied, raising injury risk in a crash. The second covers the tire pressure monitoring system, which may fail to detect a simultaneous loss of pressure across all four tires quickly enough. The third covers the fuel system: a suction jet pump seal inside the tank can let fuel migrate into the evaporative emissions system and leak out of the charcoal canister, raising fire risk near an ignition source. Owners have filed 16 complaints for the year. The factory diagnostic and repair procedures behind each of those systems are here.

Whether you're chasing a PODS air bag fault, verifying TPMS operation, or inspecting the fuel tank seal, it keeps you on the OEM procedure and the correct specification for your specific 2020 A3.