Removing cylinder head - vehicles with engine code APF — AUDI

AKL APF
Special tools and workshop equipment required

Guide pin 3450/2A
Removal/installation tool 3450/3
Puller T10112

Engine in vehicle

Notes:

All cable ties which are released or cut open when removing must be fitted in the same position when installing.
If engine oil is contaminated perform oil change:

=> Maintenance Manual

Important
On vehicles with telematics, activate service mode of telematics control unit before disconnecting battery.=>Radio, Telephone and Navigation System; Repair group 91
Refer to coding on vehicles with encoded radio/radio navigation system (RNS); if necessary, interrogate.
Disconnect earth strap at battery with ignition switched off.
Drain coolant => Page
19-49
.

Unscrew protective cover -arrows- on vehicle floor.
Unplug connector for lambda probe upstream of catalytic converter and lay wiring aside.

Unbolt heat shield for right drive shaft -arrows-.

Note:

The isolating element in front exhaust pipe must not be deflected more than 10°to avoid damage.

Remove securing bolts -arrows- of front exhaust pipe/exhaust manifold.
Remove front exhaust pipe from exhaust manifold.
Remove upper section of intake manifold => Page
15-18
.
Disconnect the thin coolant hose at the breather connection -Item
15-3
at rear of cylinder head.

Detach connector -1-.
Disconnect hoses -2- and -3- at the secondary air pump.
Detach the secondary air pump -4- from the bracket.

Unscrew bolts -1...4- of the secondary air pump bracket.
Lay the wiring aside -arrow- and remove the secondary air pump bracket.

Unplug connector -arrow- at Hall sender -G40.
Unclip the wiring duct at the intake manifold and detach the connectors for the injectors.
Lay the wiring duct aside.
Detach the spark plug connectors using puller T10112.
Position crankshaft to TDC for cylinder 1 with engine installed => Page
13-39
.
Position crankshaft to TDC for cylinder 1 with engine removed => Page
13-43
.
Removing toothed belt from camshaft sprocket
=>Page
13-35
.

Unplug connector -arrow-.

Unscrew bolts -1...3- of the coolant distributor housing on the left of the cylinder head and lay the housing aside.

Note:

The coolant hoses remain connected.

Removing cylinder head cover => page
15-32

Loosen cylinder head bolts in the sequence 1...10.
Remove cylinder head.