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Volkswagen Golf Mk7 Service & Repair Manual: General repair instructions

This page gives the general repair sequence for Volkswagen Golf Mk7 auxiliary heater work: observe high-voltage safety notes, read the heater's self-diagnosis via the vehicle diagnostic tester, and follow fuel system precautions if fuel parts are removed.

–  → Chapter „Safety precautions when working on high-voltage system“ Comply with notes.
–  Read self-diagnosis of auxiliary heater using vehicle diagnostic tester.
–  When parts of the fuel system are removed or renewed, ensure that all components for fuel delivery to the auxiliary/supplementary heater are properly installed.
–  Mark coolant hoses before removing to avoid any confusion when reconnecting.
Following repair work in the vicinity of the auxiliary/supplementary heater fuel line, check the following points:
that the fuel lines are routed flush with the vehicle underbody and are protected against mechanical damage.
that the auxiliary heater fuel line is protected from heating which might disturb operation.
that the fuel line does not come in contact with parts that become hot.
   

    Questions & answers

    General repair instructions — Volkswagen Golf Mk7

    What general repair rules apply to the Golf Mk7 auxiliary heater?
    Observe HV safety (e-Golf/GTE), read self-diagnosis fault memory before work, follow the specific removal procedures, and ensure correct fuel line bleeding afterwards.
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