5 Series E60 523i (N52K) SAL
16 00 510
Conducting leak test on fuel tank and tank
ventilation system
Note:
The following procedure is only applicable to vehicles with the tank
leak diagnosis module (DM-TL).
Select "Tank leak diagnosis module (DM-TL)" on Diagnosis and
Information System (DIS).
-
The leak diagnosis pump pressurises the fuel tank and tank
venting system for 30 secs.
-
If pressure is required for more than 30 secs., reactivate the
"Activate" button after 30 secs. in each case.
For vehicles without tank leak diagnosis module:
Pressurise fuel tank and tank venting system.
When leak-testing with a leak detector: follow manufacturer's
operating instructions.
Important!
On vehicles with tank leak diagnosis modules (DM-TL), do not
work with external pressurization as the tank venting system
will leak under this condition.
On account of emerging fuel vapors, carry out all operations in
well ventilated rooms.Or use a suitable extractor system.
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 tank cap leaking (check fuel cap pressure relief valve)
-
Tank venting lines leaking (fuel tank carbon canister - tank
venting valve)
-
Tank venting valve leaking (engine compartment)
-
Fuel level sensor flange on tank leaking
RA Conducting leak test on fuel tank and tank ventilation system
BMW AG - TIS
02.02.2013 15:30
Issue status (12/2007) Valid only until next DVD is issued
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