Removing and installing injectors N30/N33: VW 1.2 (CBZA, CBZB)

Removing and installing injectors
N30
/
N33
Special tools and workshop equipment required
Torque wrench
V.A.G 1331
Tool set for FSI engines
T10133C
Note safety precautions before beginning work
Chapter
.
Note
Teflon seal on injector must be renewed each time after removing injector
Chapter
.
Removing
Remove coolant hose out of guide on pressure pipe.
Unscrew bolts
1
and remove retaining clip.
Pull connector
2
off
charge air pressure sender
G31
with
intake air temperature sender 2
G299
.
Unlock catches in
direction of arrow
and pull pressure pipe
3
first off
throttle valve module
J338
and then off turbocharger.
Remove high-pressure pump
Chapter
.
Undo bolts
arrows
and pull off fuel rail of
injector, cylinder 1
N30
to
injector, cylinder 4
N33
.
Push O-ring upwards by hand as shown and pull it off
injector, cylinder 1
N30
to
injector, cylinder 4
N33
.
Bolt
hammer
T10133/3
and
puller
T10133/15
to each other.
Then insert
puller
T10133/15
into groove
arrow
on injector.
Pull
injector, cylinder 1
N30
to
injector, cylinder 4
N33
out with careful taps of the hammer.
Installing
Installation is carried out in the reverse order; note the following:
Thoroughly clean holes of
injector, cylinder 1
N30
to
injector, cylinder 4
N33
in cylinder head, using the
nylon brush
T10133/4
.
Renewing support washer
Chapter
.
Whenever
injector, cylinder 1
N30
to
injector, cylinder 4
N33
are removed, always renew the spring element
arrow
, the support washer, the O-ring and the Teflon seal
Chapter
.
Note
The Teflon seal on the injector must not be oiled or greased.
Injector, cylinder 1
N30
to
injector, cylinder 4
N33
should be easy to insert but, if necessary, wait until the seal has sufficiently contracted.
Ensure correct position of injectors in cylinder head.
Set of seals
Electronic Parts Catalogue
Press
injector, cylinder 1
N30
to
injector, cylinder 4
N33
into the bore in the cylinder head as far as possible by hand.
Specified torques
Chapter
“
Assembly overview - intake manifold, part I
”
Chapter
“
Assembly overview - intake manifold, part II
”
Chapter
“
Assembly overview - cylinder head
”