2002 Audi A4 ARX/ALT (B6)

Engine identity

Oils and fluids

Service and parts data

Common and chronic problems

• Camshaft adjuster solenoid failure (1.8T engines)
• Automatic transmission mechatronics issues (North American models)
• Turbocharger wastegate actuator wear (turbo models)

First checks

• Inspect timing chain tensioner and guides
• Check for oil leaks around valve cover and turbocharger
• Verify service history for regular oil changes and transmission fluid replacement

Avant de remplacer des pièces

• Save fault codes and freeze-frame data before clearing anything.
• Check engine oil, coolant and transmission fluid using the correct temperature and service procedure.
• Verify power, ground, connectors, hoses, leaks and live data before replacing expensive parts.

Important notes

• Engine and equipment specifications vary by market (Europe, USA, Asia) and transmission options differ.
• Avant (wagon) body style sold in Europe but not all markets.