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Fuel supply, gas operation >
< Radiator and radiator fans
Leon Mk1
Power unit
4 cylinder Injected engine (engine 1.8 l and 2.0 l, timing chain)
Engine cooling
Coolant pump, thermostat, coolant pipes
Removing and installing thermostat
Removing and installing thermostat
Removing
→ Anchor
.
Installing
→ Anchor
.
Removing
–
Drain coolant
→ Chapter
.
–
Remove the air conduit cover by releasing the side tabs
-arrows-
.
–
Release the lower air duct by releasing the tabs
-arrows-
.
–
Detach bottom section of air duct with air hose.
–
Release the hose clamp
-2-
.
–
Remove bolt
-4-
.
–
Disconnect electrical connector
-arrow-
.
–
Unscrew bolts
-1-
and remove the air duct.
Note
Disregard:
-Pos. 3-
.
–
Release the coolant hose
-2-
and the cable harness
-1-
.
–
Unscrew the bolt
-arrow-
and remove the bracket.
–
Unscrew the bolt
-2-
on the bracket for the coolant pump -V51-.
Note
t
The coolant pump -V51- remains in position.
t
Ignore positions
-1-
and
-arrow-
.
–
Disconnect the coolant hoses
-1 and 2-
and put them to one side.
Engine code BYT
–
Release the tabs by pressing, disconnect the hose from the crankshaft breather
-arrow-
and move to one side.
–
Unscrew the bolts
-1 to 8-
and remove the coarse oil separator.
Engine codes BZB - CCZB - CDAA
–
Remove bolts
-1 … 9-
and detach coarse oil separator.
All
Caution
Risk of lubrication system contamination.
Cover the opening with clean cloths.
–
Release the nut
-2-
, unscrew the bolt
-1-
and move the intake manifold support slightly to the right.
–
Unscrew bolts
-arrows-
and remove connection.
–
Remove the thermostat.
Installing
l
Tightening torques
→ Chapter
Reassembly is carried out in the reverse order; note the following:
Note
Renew gaskets and O-rings.
–
Clean the sealing surface for O-ring.
–
Coat O-ring with coolant, coolant
→ Electronic parts catalogue
.
–
Insert the thermostat
-4-
into the housing
-5-
for the cooling pump and move it forward a little
-arrow-
.
–
Carefully connect the connection hose
-3-
inserting the pin
-2-
into the guide
-1-
.
–
Fit the coarse oil separator: Engine code BYT
→ Chapter
; Engine codes BZB - CCZB - CDAA
→ Chapter
.
–
Install support for intake manifold
→ Item
.
–
Install continued coolant circulation pump -V51-
→ Chapter
.
–
Assembly of hose connections with couplings
→ Chapter
.
–
Fill up coolant
→ Chapter
.
Power unit
4 cylinder Injected engine (engine 1.8 l and 2.0 l, timing chain)
Engine cooling
Coolant pump, thermostat, coolant pipes
Fuel supply, gas operation >
< Radiator and radiator fans