2002 AUDI allroad ARX/AYH (4BH)

Engine identity

Oils and fluids

Service and parts data

Common and chronic problems

• Air suspension failure, oil cooler leaks in diesel engines
• Turbocharger wear on higher mileage variants

First checks

• Verify correct engine code for market variant
• Inspect air suspension system for leaks
• Check for turbocharger shaft play

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 specification vary between European diesel and North American petrol markets.
• Oil capacity includes service refill volume and oil filter replacement.