Tiguan 2016 ➤ , Tiguan RUS 2017 ➤
Heating, air conditioner - Edition 06.2017
lk
5.16
Removing and installing coolant pipes
on heat exchanger
⇒ “5.16.2 Removing and installing coolant pipes at heat exchang‐
er (Denso)”, page 157
5.16.1
Removing and installing coolant pipes at
heat exchanger (Valeo)
Note
There are different designs and makes of heater and air condi‐
tioning unit. The individual components of the various heaters and
air conditioning units are similar but not identical (distinguishing
features ⇒ page 4 ). The combined fitting of different makes of
component is therefore not permissible ⇒ Electronic parts cata‐
logue (ETKA) .
Removing
– Remove heater and air conditioning unit ⇒ page 122 .
– Detach the sealing collar -3- to the plenum chamber bulkhead.
– Unscrew bolt -2-.
– Detach the coolant pipe holder -4- to the left.
– Detach the foam -1-.
– Lift locking element -7- and pull off clip -6-.
– Pull coolant pipe -5- off heat exchanger.
– Unscrew bolt -8-.
– Remove screw-type clip -9- and pull coolant pipe -10- off heat
exchanger.
– Detach the coolant pipes.
Installing
Install in reverse order of removal. Observe the following:
– Check connection -3- of heat exchanger and connection -2- of
coolant pipes for damage or contamination.
– Clean and smooth sealing surface for seals.
– Moisten new seals -4- with coolant (or lubricate lightly with sil‐
icone grease) and fit them to coolant pipe -1-.
– Push coolant pipes into heat exchanger as far as stop.
NOTICE
Risk of heat exchanger malfunction due to defective seals and
leaks.
– Never pinch seals.
– Never cant coolant pipes.
– Slide on coolant pipes completely.
156
Rep. gr.87 - Air conditioning system
Tiguan 2016 ➤ , Tiguan RUS 2017 ➤
Heating, air conditioner - Edition 06.2017
– Fit new clip -5- or screw-type clip -2- onto joint of coolant pipe
and heat exchanger.
– Tighten bolt -3-.
– Check clip and screw-type clip for proper seating on connec‐
tions of heat exchanger and check coolant pipes. The coolant
pipes must not contact air distribution housing or any other
components.
lk
– Install heater and air conditioning unit ⇒ page 122 .
– Read event memory and clear any entries displayed using
⇒ Vehicle diagnostic tester in “Guided Fault Finding” mode.
– Check operation of heater and air conditioning system.
Specified torques
♦ ⇒ “5.1 Assembly overview - heater and air conditioning unit”,
page 111
5.16.2
Removing and installing coolant pipes at
heat exchanger (Denso)
Note
There are different designs and makes of heater and air condi‐
tioning unit. The individual components of the various heaters and
air conditioning units are similar but not identical (distinguishing
features ⇒ page 4 ). The combined fitting of different makes of
component is therefore not permissible ⇒ Electronic parts cata‐
logue (ETKA) .
Removing
– Remove heater and air conditioning unit ⇒ page 122 .
– Detach the sealing collar -3- to the plenum chamber bulkhead.
– Unscrew bolt -2-.
– Detach the coolant pipe holder -4- to the left.
– Detach the foam -1-.
– Remove bolts -5- and detach screw-type clamps -6-.
– Pull coolant pipes -7- and -8- off heat exchanger.
157
Tiguan 2016 ➤ , Tiguan RUS 2017 ➤
Heating, air conditioner - Edition 06.2017
Installing
Install in reverse order of removal. Observe the following:
– Check connection -3- of heat exchanger and connection of
coolant pipes -1- for damage or dirt.
– Clean and smooth sealing surface for seals.
– Moisten new seals -2- with coolant (or lubricate lightly with sil‐
icone grease) and fit them to coolant pipe -1-.
– Push coolant pipes into heat exchanger as far as stop.
NOTICE
Risk of heat exchanger malfunction due to defective seals and
leaks.
– Never pinch seals.
– Never cant coolant pipes.
– Slide on coolant pipes completely.
– Fit new screw-type clamps -2- on coolant pipe/heat exchanger
joint.
– Tighten bolts -1-.
– 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 com‐
ponents.
– Install heater and air conditioning unit ⇒ page 122 .
– Read event memory and clear any entries displayed using
⇒ Vehicle diagnostic tester in “Guided Fault Finding” mode.
– Check operation of heater and air conditioning system.
lk
Specified torques
♦ ⇒ “5.1 Assembly overview - heater and air conditioning unit”,
page 111
5.17
Removing and installing evaporator
temperature sensor - G308-
⇒ “5.17.2 Removing and installing evaporator temperature sensor
G308 , right-hand drive vehicles”, page 159
5.17.1
Removing and installing evaporator
temperature sensor - G308- , left-hand
drive vehicles
Special tools and workshop equipment required
158
Rep. gr.87 - Air conditioning system
2024 VW Tiguan Owner's Manual
