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< SCR system (selective catalytic reduction)
Leon Mk1
Power unit
4 cylinder Diesel engine (2.0 litre engine, Common Rail, Generation II)
Ignition system, glow plug system
Checking glow plug system
Removing and installing glow plugs
Removing and installing glow plugs
Special tools and workshop equipment required
t
Flexible-head spanner SW 10 -3220-
t
Pliers -3314-
Removing
–
Switch off ignition.
–
Remove engine cover
→ Chapter
.
Caution
t
Ensure that no line connection is damaged when disconnecting the glow plug connectors, as the entire wiring harness otherwise has to be renewed.
t
Do not squeeze the pliers -3314- too firmly when pulling off glow plug connectors, because otherwise the support sleeve may be damaged.
–
Open retaining clips
-arrows-
on wiring harness and pull electrical connectors off glow plugs.
–
Position pliers -3314- with groove
-arrow A-
on support sleeve shoulder
-arrow B-
and pull plugs off glow pin plugs.
–
Clean glow plug channel in cylinder head; make sure no dirt gets into cylinder.
Note
t
Cleaning procedure:
t
Use a vacuum cleaner to remove coarse dirt.
t
Spray brake cleaner or suitable cleaning agent into glow plug opening, let it work in briefly and blow out with compressed air.
t
Then clean glow plug opening using a cloth moistened with oil.
–
To loosen glow plugs use special tool U/J extension and 10 mm socket -3220-
Installing
Installation is carried out in the reverse order; note the following:
l
Specified torque 18 Nm
–
Reattach glow plug connectors
-1-
to glow plugs
-arrow-
.
Note
Make sure that glow plug connectors are firmly seated.
Power unit
4 cylinder Diesel engine (2.0 litre engine, Common Rail, Generation II)
Ignition system, glow plug system
Checking glow plug system
Pre-heating system >
< SCR system (selective catalytic reduction)