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Volkswagen Golf Mk7 Service & Repair Manual: Removing and installing temperature sensor -G18- and overheating sensor -G189

This page covers removing the Volkswagen Golf Mk7 auxiliary heater temperature sensor -G18- and overheating sensor -G189- together — remove a 4 Nm bolt and retaining spring first.

Removing
   
–  Dismantling and assembling auxiliary heater → Chapter.
–  Remove bolt -1- (4 Nm) and remove retaining spring -2-.
–  Pull out temperature sensor -G18--3-and overheating sensor -G189--4- using long nose pliers.
Installing
Install in reverse order.
–  Renew seals.
–  Check sealing surfaces and clean if necessary.
–  Before inserting sensors, coat seals with coolant.
 

Removing and installing temperature sensor -G18- and overheating sensor -G189

–  When assembling, ensure that retaining spring is in proper position -2-.
  Note
Sensors cannot be renewed separately.
Specified torque
→ Chapter „Assembly overview - auxiliary heater attachments“
 

Removing and installing temperature sensor -G18- and overheating sensor -G189

    Questions & answers

    Removing and installing temperature sensor -G18- and overheating sensor -G189 — Volkswagen Golf Mk7

    How do I remove the Golf Mk7 auxiliary heater temperature sensors?
    Dismantle the heater. Remove the bolt (4 Nm) and extract the combined temperature/overheating sensor unit.
    Removing and installing glow plug with flame monitoring -Q8
    Removing –  Dismantling and assembling auxiliary heater → Chapter.     ...

    Connector pin assignment for auxiliary heater
    1 -  6-pin connector Information on pin assignment can be found in the latest current flow diagram → Current flow diagrams, Electrical fau ...