Audi Workshop Service and Repair Manuals

• ● Engine in vehicle

Notes:

• ◆ All cable ties which are opened or cut open on removal must be replaced in the same position when installing.
• ◆ Change the engine oil if there are particles or other impurities in the oil:

=> Maintenance booklet

• ◆ Before applying sealant, check updated information:

=> Parts catalogue

• ‒ Drain cooling system.
• ‒ Remove front exhaust pipe with catalytic converter => Page 26-15.

• ‒ → Remove support for exhaust manifold -arrows-.
• ‒ Remove upper section of intake manifold => Page 15-10.

• ‒ → Detach bracket -arrow- for oil dipstick guide tube from lower section of intake manifold.
• ‒ Turn crankshaft to TDC position of No. 1 cylinder with engine installed => Page 13-37.
• ‒ Turn crankshaft to TDC position of No. 1 cylinder with engine removed => Page 13-42.
• ‒ Take toothed belt off camshaft sprocket => Page 13-34.

• ‒ → Unplug electrical connector -arrow- from camshaft adjuster.

• ‒ → Unbolt coolant pipe flange from cylinder head (left) and place it to one side.

Note:

Leave coolant hoses connected.

Vehicles with exhaust gas recirculation

• ‒ → Unplug electrical connector -3-.
• ‒ Disconnect vent hose -2-.
• ‒ Unscrew bolts -1-, -4- and -5- and detach exhaust gas recirculation valve -N18.

Note:

Shown in illustration with engine removed.

Vehicles with secondary air system

• ‒ → Disconnect hoses -2- and -3-.

Note:

The combination valve -1- for the secondary air system can remain installed.

All models

• ‒ Disconnect crankcase breather hose from cylinder head cover.
• ‒ → Unscrew nuts on cylinder head cover in order -9 ... 1-.

• ‒ → Loosen cylinder head bolts in the sequence indicated: 1 ... 10.
• ‒ Remove cylinder head.