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Installing cylinder head >
< Removing cylinder head (left-side)
A4 Cabriolet Mk2
Power unit
6-cylinder diesel direct injection engine (TDI), mechanics
Engine cylinder head, valve gear / Removing and installing cylinder head
Removing cylinder head (right-side)
Removing cylinder head (right-side)
Removing cylinder head (right-side)
Special tools and workshop equipment required
t
Ring spanner -3035-
Removing
Caution
Observe notes on procedure for disconnecting the battery
→ Electrical system; Rep. Gr.27
.
–
Disconnect earth wire at battery with ignition switched off.
–
Drain off coolant
→ Chapter
.
–
Remove front bumper cover
→ General body repairs, exterior; Rep. Gr.63
.
–
Move lock carrier into its service position
→ General body repairs, exterior; Rep. Gr.50
.
–
Detach toothed belt from camshaft sprockets
→ Chapter
.
–
Take off camshaft sprocket (right-side).
–
Remove intake manifold (front section)
→ Rep. Gr.23
.
–
Remove toothed belt cover (rear right)
-arrows-
.
–
Unscrew guide tube for dipstick at cylinder head and lift off.
–
Remove right exhaust manifold together with intermediate pipe
→ Chapter
.
–
Remove heat shield above turbocharger
-arrows-
.
–
Mark position of retaining clips on injector pipes (e.g. with felt-tip pen).
–
Mark injector pipes according to cylinder (e.g. with felt-tip pen).
–
Disconnect injector pipes one by one with ring spanner -3035-.
–
Disconnect hoses
-arrows-
at turbocharger and mechanical exhaust gas recirculation valve.
–
Remove air intake hose
-arrows-
.
–
Unplug electrical connectors
-1 ... 3-
.
–
Detach electrical connector
-4-
at injection pump.
–
Unplug electrical connector
-5-
at coolant temperature sender.
–
Detach electrical connectors at glow plugs.
–
Move wiring harness clear.
–
Unplug electrical connector
-arrow-
at engine mounting (right-side).
–
Move wiring harness clear.
–
Unplug connector
-arrow-
and move wire for needle lift sender -G80- clear to the side.
–
Detach oil pipe
-1-
at turbocharger.
–
Unscrew oil pipe at intake manifold
-2-
.
–
Remove bolts
-2-
and
-3-
.
–
Press coolant pipe (right-side)
-1-
to rear and set down.
Note
Illustration shows coolant pipe with oil filter bracket removed.
–
Disconnect return pipe from injectors
-1-
.
–
Unscrew nuts
-arrows-
for cylinder head cover and detach cylinder head cover.
–
Slacken cylinder head bolts in the sequence indicated and remove bolts.
–
Take off cylinder head and place it on a soft surface (such as foam plastic).
Caution
Never set down cylinder head on workbench, as this could damage injectors and glow plugs.
Power unit
6-cylinder diesel direct injection engine (TDI), mechanics
Engine cylinder head, valve gear / Removing and installing cylinder head
Removing cylinder head (right-side)
Installing cylinder head >
< Removing cylinder head (left-side)