volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Cleaning rules > < Air filter case - disassemble and assemble|Installation
Safety measures
Safety measures
  WARNING
The fuel system is under pressure. Before loosening hose connections or opening checking junction, place a cloth around them. Then, eliminate the pressure, by carefully removing the hose and loosening the closing screw.
To avoid personal injuries and/or injection and ignition system damage, observe the following:
t  For safety reasons, fuse 41 must be removed from the fuse holder before opening the fuel system.
t  Do not touch or remove the ignition cables while the engine is running or when the engine is starting.
t  Only connect or disconnect the injection and ignition system cables (and measuring device cables) with the ignition switched off.
  WARNING
Remember the following when performing installation work, especially inside the engine compartment where there is little space:
t  All hoses (e.g. fuel, hydraulics, activated charcoal filter system, cooling system and refrigerant, brake fluid, vacuum) and electric cables must be restored to their original positions.
t  Allow easy access to all the moving or hot parts.
If during a test run it is necessary to use testing and measuring equipment, observe the following:
t  always install test and measuring equipment on the rear seat to be operated by someone seating there.
If test and measuring equipment are operated from the passenger seat, the person seated there may be injured should the airbag activate in case of accident.
t  If the engine is to be turned over at starting speed, without starting:
   
–  Disconnect the 4-pole connector from the Ignition transformer -N152--arrow-.
  N28-0175
–  Remove protective fuse 25 for injection valve protection from fuse holder.
  Note
Removing fuse 25 interrupts the power supply to the injectors.
  N24-1481

Cleaning rules > < Air filter case - disassemble and assemble|Installation