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Home >> Porsche >> 2021 >> Panamera Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 18 (20 Fuel Supply, Actuator 3.0L Turbo -- 971 - PANAMERA (971)) >> WM, 200101 Checking Fuel System >> Checking Fuel System (High-Pressure Side) >> Checking Fuel System (Leak-Testing)

Checking Fuel System (Leak-Testing)

WARNING: This page is about a different car, the 2020 Porsche Panamera, 2019 Porsche Panamera, 2018 Porsche Panamera, and 2017 Porsche Panamera. However, it is still accessible from the selected car via links, so may be relevant.
  1. Spray all connection points of the high-pressure pump with commercially available leak-locating spray and check for pressure gas leaks (air bubbles).
  2. If the pressure drops even though the threaded connections are perfect: 

    Spray all components of the fuel high-pressure system with leak-locating spray and check for pressure gas leaks (air bubbles).

  3. If the pressure drops even though the fuel high-pressure system is perfect: 

    Spray all test tools with leak-locating spray and check for pressure gas leaks (air bubbles).

  4. Fix the leak and repeat the leak test.
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