AUDI CTGE — 4L Engine

Engine overview

Engine codes in the same family

The same code prefix usually means the same block with a different output, fuel or model year. Procedures are often shared — check the code on the engine plate.

Workshop procedures for this engine

Step-by-step procedures from the workshop database, carrying 10 torque figures.

• Removing engine, Audi S6/S7 · 1 torque figures
• Removing engine, Audi RS 6/RS 7 · 1 torque figures
• Separating engine and gearbox, Audi RS 6/RS 7 · 2 torque figures
• Removing and installing secondary air inlet valve N112/N320
• Separating engine and gearbox, Audi S6/S7 · 2 torque figures
• Removing and installing coolant pipe (bottom left)
• Removing and installing drive chain for auxiliary drive · 3 torque figures
• Removing and installing spur gear drive
• Removing and installing radiator - Audi RS 6/RS 7
• Removing and installing radiator - Audi S6/S7
• Removing and installing coolant pipe (right-side) on gearbox
• Renewing oil seal for power steering pump drive
• Removing cylinder head, bank 1 (right-side)
• Removing cylinder head, bank 2 (left-side)
• Removing and installing intake manifold (left-side) with fuel rail, cylinder bank 2
• Installing high-pressure pipe · 1 torque figures
• Removing and installing charge air cooler housing
• Removing and installing intake manifold (right-side) with fuel rail, cylinder bank 1
• Removing and installing coolant pipe (top rear)
• Removing and installing engine oil cooler (front)
• Removing and installing non-return valve
• Removing and installing coolant circulation pump 2V178
• Removing and installing ignition coils with output stages, cylinder bank 2 (left-side)
• Removing and installing coolant pipe (bottom rear)
• Removing high-pressure pipe, cylinder bank 1 (right-side)