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Home >> Volkswagen >> 2005 >> Jetta TDI, Automatic >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> 1.9L - Fuel Supply System - BKC, BLS, BRM & BXE (A5 Platform) >> 20 Fuel Supply System >> General Information >> Fuel Supply System Safety Precautions

Fuel Supply System Safety Precautions

WARNING:

When doing any repair work, especially in the engine compartment, pay attention to the following due to clearance issues:

  • Route lines of all types (e.g. for fuel, hydraulic, coolant and refrigerant, brake fluid, vacuum) and electrical wiring so that the original path is followed.
  • Ensure sufficient clearance to all moving or hot components.
  • The fuel or fuel lines in fuel system can become very hot (danger of scalding)!
  • In addition, the fuel system is under pressure! Before opening the system, place rags around the connection area and release pressure by carefully loosening the connection!
  • Wear protective goggles and protective gloves when working on the fuel system!

Fuel pump is activated with switching on the ignition and by door contact switch of driver's door. Therefore for reasons of safety, connector -arrow- must be disconnected from fuel delivery unit before opening fuel supply system, if the battery is not disconnected.

Fig 1: Identifying Fuel Delivery Unit Connector
GWWA20-1067Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

Always observe the following when removing and installing the Fuel Level Sensor or the fuel pump (fuel delivery unit) from full or partially filled fuel tanks: