Volkswagen Golf Service & Repair Manual: Removing and installing coolant pipes at heat exchanger (Denso)
 Note
| There are different designs and makes of heater and air
conditioning unit. The individual components of the various
heaters and air conditioning units are similar but not identical
(distinguishing features
→ Chapter). The combined fitting of different makes
of component is therefore not permissible
→ Electronic Parts Catalogue. |
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| – |
Remove heater and air conditioner unit
→ Chapter. |
| – |
Detach the sealing collar -3-
to the plenum chamber bulkhead. |
| – |
Detach the coolant pipe holder -4-
to the left. |
| – |
Screw out the bolts -5- and
detach the screw-type clamps -6-. |
| – |
Pull coolant pipes -7- and
-8- off heat exchanger. |
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| Installation is carried out in the reverse order. When
installing, note the following: |
| – |
Check connection -3- of the
heat exchanger and the connection of the coolant pipes
-1- for damage or dirt. |
| – |
Clean and smoothen sealing surface for seals. |
| – |
Moisten new seals -2- with
coolant (or lubricate lightly with silicone grease) and fit them
to coolant pipe -1-. |
| – |
Push coolant pipes into heat exchanger as far as stop. |
Risk of malfunction on heat exchanger due to defective seals and
leaks.Never squeeze seals.Never cant coolant pipes.Slide on coolant
pipes completely. |
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| – |
Fit new screw-type clamps -2-
at the coolant pipe/heat exchanger joint. |
| – |
Check screw-type clips -2- for
proper seating on connections of heat exchanger and check
coolant pipes. The coolant pipes must not rest against air
distribution housing or any other components. |
| – |
Install heater and air conditioning unit
→ Chapter. |
| – |
Read event memory, and clear any entries displayed vehicle
diagnostic tester in “Guided fault finding” mode. |
| – |
As a final step, check operation of heater and air
conditioning system. |
| → Chapter „Assembly overview - heater and air conditioning unit“ |
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Note
There are different designs and makes of heater and air
conditioning unit. The individual components of the various
heaters and air conditioning u ...
Special tools and workshop equipment
required
Removal wedge -3409-
Note
...
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Removing and installing coolant pipes at heat exchanger (Valeo)
Removing and installing evaporator temperature sensor -G308-, LHD vehicles