Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSAUDI2001A6 AVANT QUATTROREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 14 (4.2L V8 5V (ENGINE CODE: BAS)
2001 Audi A6 Avant Quattro
Section 14 (4.2L V8 5V (Engine Code: BAS)
2001 Audi A6 Avant QuattroSECTION Section 14 (4.2L V8 5V (Engine Code: BAS)
WARNING: This page is about a different car, the 2005 Audi allroad, 2004 Audi allroad, and 2003 Audi allroad. However, it is still accessible from the selected car via links, so may be relevant.
- Technical data
- Engine - Assembly
- Engine - Crankshaft, Cylinder Block
- Engine, disassembling and assembling
- Dual-mass flywheel or drive plate, overview
- Timing chains, covers
- Camshaft drive
- Power take-off
- Engine Cylinder Head Valvetrain
- Cylinder head, removing and installing
- Intake manifold, overview
- Valve gear, servicing
- Notes
- Valve gear, overview
- Camshafts, removing and installing
- Axial clearance of camshafts, checking
- Roller-type rocker finger, removing and installing
- Valve stem seals, replacing
- Valve guides, checking
- Valves, checking
- Valve seats, reworking
- Camshaft timing control, checking
- System test, performing
- Camshaft adjustment solenoid valves, checking
- Engine - Lubrication
- Lubrication system components, removing and installing
- Notes
- Oil pump and lower part of sump, overview
- Lower part of sump, removing and installing
- Oil pump, removing and installing
- Upper part of sump, overview
- Upper part of sump, removing and installing
- Oil retention valves and spray jet valve, overview
- Oil retention valves and spray jet valve, removing and installing
- Oil filter housing, overview
- Oil filter housing, removing and installing
- Oil cooler, removing and installing
- Oil pressure and oil pressure switch, checking
- Engine oil
- Oil level, checking
- Lubrication system components, removing and installing
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.