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Home >> Porsche >> 2016 >> Panamera 4 Edition >> Repair and Diagnosis (Single Page) >> Engine Mechanical >> Fuel System >> 24 - Fuel System - Electronic Ignition -- PANAMERA (970) >> WM 243001 Checking Fuel Collection Pipe For Leaks (PANAMERA Turbo, PANAMERA Turbo Executive, PANAMERA Turbo S, PANAMERA Turbo S Executive) >> Tools And Materials >> Special Tools

Special Tools

Fig 1: Identifying Leak Test Tools
G09805741Courtesy of PORSCHE CARS NORTH AMERICA, INC.
  1. The required pressure is set on the compressed gas bottle using the commercially available pressure gauge unit (pressure reducer). The commercially available compressed gas bottle must be filled only with the approved leak-locating gases.
  2. Air-spring strut filling unit VAS 6231 WE 1282  With the air-spring filling unit, the connection is positioned between the pressure reducer and the adapter. Perform the leak test using individual bursts of pressure.
  3. Adapter 1318/7  from K-Jetronic Tester V.A.G. 1318 WE 1291  for screwing into the low-pressure fuel line for the high-pressure pump.
  4. Commercially available leak-locating spray for detecting gas leaks.

Approved leak-locating gases (test media)

Leak-locating gas (test medium) Designation Composition/purity
Helium He (gaseous, compressed)
  • 4.6 (minimum quality)
  • 5.0, etc.

not balloon gas! 
  • 99.996 volume % (4.6) He
  • 99.999 volume % (5.0) He
Forming gas
  • Forming gas 5
95% nitrogen N2 and 5% hydrogen H2