Volkswagen Golf Quiz
Heating, air conditioning

Removing and installing coolant pipes at heat exchanger (Valeo)

In this manual: Heating, air conditioning
General body repairs, exterior — 230General body repairs, interior — 279General information, paint — 133Vechile- specific paint information — 27Heating, air conditioning — 156Auxiliary heater — 58Air conditioning system with refrigerant R134a — 1297- speed dual clutch gearbox 0CW — 544- cylinder injection engine(1.4 1 direct inction. turbocharger) — 182Fuel supply system - Petrol engines — 59Running gear, axles, steering — 221Brake system — 92Wheels and Tyres guide — 12Guide for using trailers — 11Wheels and Tyres Guide - General Information — 121Brake system (hybrid) — 73Electrical system — 326Communication — 65Electrical system, general information — 111
~2min read
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.

Removing

  • Remove heater and air conditioner unit → Chapter.
  • Detach the sealing collar -3- to the plenum chamber bulkhead.
  • Remove 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.
  • Remove bolt -8-.
  • Remove screw-type clip -9- and pull coolant pipe -10- off heat exchanger.
  • Detach the coolant pipes.
Removing and installing coolant pipes at heat exchanger (Valeo)

Installing

Installation is carried out in the reverse order. When installing, note the following:
  • Check connection -3- of the heat exchanger and connection -2- of the coolant pipes for damage or contamination.
  • Clean and smoothen sealing surface for seals.
  • Moisten new seals -4- 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.
Removing and installing coolant pipes at heat exchanger (Valeo)
  • Fit a new clip -5- or screw-type clip -2- onto coolant pipe / heat exchanger joint.
  • Tighten bolt -3-.
  • Check clip and screw-type clip 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.

Specified torques:

→ Chapter „Assembly overview - heater and air conditioning unit“
Removing and installing coolant pipes at heat exchanger (Valeo)

Test yourself

A quick Volkswagen Golf quiz: every answer comes with an explanation and a link to the manual page.