Audi Workshop Service and Repair Manuals

• ● Engine in vehicle
• ● Lock carrier must be in service position .

Notes:

• ◆ Secure all hose connections with the correct hose clips (same as original equipment)

=> Parts catalogue

• ◆ All cable ties which are opened or cut open when removing must be replaced in the same position when installing.

• ‒ Obtain radio code on vehicles with coded radio.
• ‒ With ignition switched off disconnect battery earth strap.
• ‒ Draining cooling system=> Page 19-5
• ‒ Unscrew securing bolts for front exhaust pipe / exhaust manifold accessible from below .
• ‒ Remove intake manifold => Page 15-10.
• ‒ Remove ribbed belt and ribbed belt tensioning element => Page 13-18.

• ‒ → Remove enginecover panels -arrows-.
• ‒ Takeoff cover above air cleaner housing.

• ‒ → Unplug connectors -2- and -3- at air mass meter and ACF valve, move wiring clear and place it on engine.
• ‒ Pull ACF valve -1- off air cleaner housing.
• ‒ Remove air cleaner housing -arrow-.
• ‒ Unscrew bolts accessible from above securing front exhaust pipe to exhaust manifold.
• ‒ Push exhaust system towards the rear so that studs on exhaust manifold are free.

• ‒ → Disengage connector -arrow- for lambda probe from retainers, unplug connector and move wiring clear.

• ‒ → Unplug connector -1- at coolant temperature sender -G2/-G62.
• ‒ Unplug connector -2- at temperature sensor -G18.
• ‒ Unclip all wiring from cylinder head and move clear to one side.
• ‒ Remove top coolant pipe.

• ‒ Pull off coolant hose going to heat exchanger (heater unit) at back of cylinder head (first release retainers on connecting flange).
• ‒ Remove toothed belt guard (upper) => Page 13-28.
• ‒ → Set crankshaft to markings for TDC of No. 1 cylinder -arrows- by turning central bolt on crankshaft sprocket in direction of rotation.

Vehiclesä 07.97:

• ‒ → Loosen toothed belt tensioner with Torx wrench T45 -lower arrow-.
• ‒ Press toothed belt tensioner downwards.
• ‒ Take toothed belt off camshaft sprocket.
• ‒ Unscrew Torx bolt and pivot tensioner plate forwards.

Vehicles08.97 ä:

• ‒ → Using 8 mm hexagon key, turn toothed belt tensioning roller -1- slowly and with constant firm pressure in direction of arrow, so that holes -2- in tensioner piston and housing are aligned.

Note:

Do not loosen bolt -3-.

• ‒ With the tensioner in this position, insert a suitable retaining pin (such as a 2 mm drill bit or nail) into the two holes.
• ‒ Take toothed belt off camshaft sprocket.

All models

• ‒ Remove cylinder head cover.

• ‒ → Keep to specified sequence when loosening cylinder head bolts.
• ‒ Remove cylinder head.