Remove cylinder head - Engine codes ANB, APU: Audi 1.8 (AEB, AJL, ANB, APU)

AJL ANB APU
Special tools and workshop equipment required

Pin T40011

Engine in vehicle
Lock carrier in service position =>Page
13-1
.

Notes:

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

=> Parts List

All cable ties which are released or cut open when removing must be fitted in the same position when installing.

Observe or obtain radio code on vehicles with coded radio.

Disconnect earthing strap at battery with ignition switched off.
Drain coolant=> Page
19-5
.
Remove intake pipe => Page
15-15
.
Remove ribbed belt and tensioner for ribbed belt => Page
13-22
.
Remove the air filter cover -arrow-.

Disconnect wires/unplug connectors:

1 -
On engine of secondary air pump -V101 (with engine code ANB only)
2 -
At ACF valve
3 -
At output stage -N122
4 -
At air mass meter
5 -
On solenoid valve for boost pressure control -N75

Move wiring clear and place it on the engine.
Disconnect hoses and remove air cleaner housing -arrows-.

Unplug connector -arrow- at coolant temperature sender -G2/-G62.

Detach vacuum hose -arrow- from combination valve (engine code ANB only).

Unclip all wiring from cylinder head and move clear to one side.

Remove pipe of crank housing vent -1-.
Remove pipe -1- from combination valve for secondary air inlet on cylinder head cover and from heat shield (engine code ANB only).
Remove heat shield -3-.

Remove bolts -1- and -2- of oil feed pipe.
Screw out bolts -3- for exhaust turbocharger.

Pull off coolant hose going to heat exchanger (heater unit) at back of cylinder head (first release retainers on connecting flange).
Remove upper toothed belt protection => Page
13-46
Position crankshaft on central bolt of toothed belt crankshaft into engine rotation direction to marking TDC cyl 1 -arrows-.

Turn toothed belt tensioner -1- with 8 mm Allen key slowly with constant pressure in direction of arrow until the bores -2- of piston and housing of the tensioning element are aligned.
In this position push pin T40011 in both bores.

Note:

Do not loosen bolt -3-.

Take toothed belt off camshaft sprocket.
Remove cylinder head cover => Page
15-21
.

Maintain sequence when loosening and tightening cylinder head bolts.
Remove cylinder head.