Operation CHARM: Car repair manuals for everyone.

Fuel Tank: Testing and Inspection



16 00 510 Conducting Leak Test On Fuel Tank And Tank Venting System







Necessary preliminary tasks:
- Pressurize fuel tank and tank venting system

NOTE:
During the leak test with a leak detector, be sure to follow the operating instructions of the equipment manufacturer.







IMPORTANT:
Escaping fuel vapours; only work in well-ventilated rooms or use suitable exhaust extraction unit.
Observe country-specific accident prevention and occupational safety regulations.







The leak test can be carried out with a leak detector.
Possible causes may be:
- Fuel filler cap leaking
- Tank venting lines leaking (fuel tank; carbon canister; tank venting valve)
- Tank ventilation valve leaky (engine compartment)
- Tank sensor on fuel tank leaky