Removing and installing intake manifold -engine codes ABK, ADA, ADW- — AUDI
Removing and installing intake manifold -engine codes ABK, ADA, ADW- on Audi: factory workshop procedure for engines AAD, AAE, ABB, ABK.
Workshop procedure for AUDI — the factory write-up, straight from real workshop data.
📐 13 workshop diagrams for AAD
Real factory drawings for this job — timing marks, bolt locations and routing. Locked in the free view.
📋 Procedure
AAE ABB ABK ADA ADW
Removing
Detach throttle cable -2- at throttle valve connection and support bracket (do not remove retainer). Move throttle cable to the side.
Detach the vacuum pipe -1- to the brake servo unit.
Unplug connectors -arrows- at the injectors.
Unplug connectors at fan run-on thermoswitch.
Detach crankcase breather hose.
Detach the air duct hose -2- from the throttle valve unit and the air flow meter, loosen hose clamps -arrows- for this purpose.
Detach the elbow piece -1- from hose to cylinder head cover/intake manifold.
Detach the heat shield for the throttle valve potentiometer at the side of the throttle valve body.
Disconnect wires/unplug connectors:
1 -
Throttle valve potentiometer -G69
2 -
Connection on throttle valve unit to activated carbon filter solenoid valve 1 -N80
3 -
Cold start valve -N17
4 -
Connection on throttle valve unit to intake air preheater
-
Idling switch -F60
Important
The fuel system is pressurised. Before opening the system place a cloth around the connection point. Then release pressure by carefully loosening the connection.
Disconnect fuel supply and return lines at the bolted connection -arrow-.
Unscrew fuel supply and return lines from cylinder head cover.
Detach hose of intake air preheater from warm air arrester plate on exhaust manifold.
Unscrew the threaded connections -2- and remove intake manifold support.
Unscrew bolt -3-.
Unscrew CO test pipe from the exhaust manifold -1-.
Unbolt the warm air arrester plate.
Unscrew nuts and bolts securing intake manifold to cylinder head.
Remove intake manifold.
Note:
Plug intake ports on cylinder head with clean cloths.
Installing
Installation is carried out in the reverse order; note the following:
Note:
Replace gaskets and seals.
Tightening torques
Component · Nm
Intake manifold to · M6 · 10
cylinder head · M8 · 20
Support for intake pipe to intake pipe · 20
Support for intake pipe to intake manifold · 25
Warm air arrester plate to exhaust manifold · 20
CO test pipe to exhaust manifold · 20
CO test pipe to intake pipe · 10
Heat shield to intake pipe · 10
Fuel feed and return pipe to fuel manifold · 25
Hose clamps · 2
TorqFix answers live for your specific car — tell it the engine code and it serves the matching sequence, torque figures and wiring for that exact variant.
Ask about my car →Other AUDI procedures
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Who makes these pages, and how
TorqFix was built by a mechanic — after a 2,700 km drive with five roadside repairs that no diagnostic tool could explain.
The figures on this page come from manufacturer workshop documentation and are shown as they are. The page is assembled automatically from that data — it is not written by an AI. The AI works in the chat, where it answers for your specific car. It writes nothing here.
Variants of the same model differ. Cross-check torque against the factory manual for your engine before final tightening.
Seen a figure that does not match your manual? Write to us — we correct it and note when. support@torqfix.com
The story behind TorqFix →Workshop data on this page last updated 20 Sep 2026.