Volkswagen Golf Quiz
Fuel supply system - Petrol engines

Removing and installing fuel line for auxiliary/supplementary heater

In this manual: Fuel supply system - Petrol engines
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

Removing

  • Observe safety precautions → Chapter.
  • Observe rules for cleanliness → Chapter.
  • Fuel tank must not be more than 3/4 full. This ensures that the fill level is below the flange of the fuel delivery unit.
  • Draining fuel tank → Chapter
  • Remove rear bench seat → General body repairs, interior; Rep. gr.72.
  • Unclip cover -1- for flange at retaining tabs -arrows-, using removal wedge -3409-.
Removing and installing fuel line for auxiliary/supplementary heater
  • Unclip sealing grommet -1- downwards from cover -2-.
  • Push cover -2- back along wiring harness -3-.
Removing and installing fuel line for auxiliary/supplementary heater

Vehicles with front-wheel drive

  • Release and pull off connector -1- on sealing flange.
  • If fitted, detach connector -2- for metering pump -V54- of auxiliary heater on sealing flange and lay connector aside.
Removing and installing fuel line for auxiliary/supplementary heater

Vehicles with four-wheel drive:

  • Release and pull off connectors -1- and -2- on sealing flange.
  • If fitted, detach connector -3- for metering pump -V54- of auxiliary heater on sealing flange and lay connector aside.
Removing and installing fuel line for auxiliary/supplementary heater
If the fuel line for metering pump -V54- is to be disconnected from fuel delivery unit:
  • Open lower clamp -3- on sealing flange -1-.
The fuel system is pressurised.Risk of injury due to fuel which may spurt out.Wear eye protection.Wear protective gloves.Release pressure: place clean cloth around connection and carefully open connection.
  • Do not open upper clamp -4-.
  • Pull fuel line -2- together with grommet off sealing flange.

If a new fuel delivery unit is installed:

  • Remove fuel line → Anchor.
Removing and installing fuel line for auxiliary/supplementary heater
  • Remove fuel delivery unit → Chapter.
  • The connection on the fuel delivery unit -2- must be opened.
  • To do this, cut off sealing piece -3- on connection -1-.
  • Cut it off on the respective marking line -arrow-.
  • Deburr edges of cutting point.
  • Prevent any dirt or swarf from entering the fuel delivery unit.
  • Check fuel delivery unit for soiling, and clean it as necessary.
  • Install fuel delivery unit → Chapter.
Removing and installing fuel line for auxiliary/supplementary heater

Installing fuel line:

  • Insert fuel line -3- in connection -5-.
  • Insert fuel line to stop -arrow-.
  • While doing this, fit grommet -1- over connection.
  • Renew lower clamp -4-.
  • If the fuel line or grommet has been renewed, the upper clamp must be renewed as well.
  • Renew clamps -2- and -4-, if they have been opened.
  • Secure hose connections with the hose clips corresponding to original equipment.

Specified torques

→ Chapter „Assembly overview - fuel delivery unit and fuel gauge sender“
Removing and installing fuel line for auxiliary/supplementary heater

Test yourself

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