3 Series E46 316i (M43TU) SAL
16 00 100
Checking fuel tank and tank ventilation
system for leaks
Special tools required:
•
13 3 010
•
16 1 157
•
16 1 171
•
16 1 174
Note:
The following procedure is only applicable to vehicles without
the tank leak diagnosis module (DM-TL).
Vehicles with carbon canister only
A leak test must be carried out if a leak is suspected in the
tank ventilation system.
Vehicles with leak diagnosis pumps (LDP)
If a leak in the tank ventilation system is indicated by the
"Check engine" indicator lamp in the instrument cluster
lighting up, a leak test must be carried out.
Read out the fault memory of the DME control unit and carry
out a diagnosis. If the sensors are OK, then begin the leak
test.
The following conditions must be observed to obtain plausible
measuring results:
-
Contents of fuel tank 50 %
±
25 %
-
Park the car in the workshop at least 2 hours before the test
so that the fuel temperature is approximately that of the
workshop temperature
(ideal fuel temperature approx. 10...20
°
C).
-
Never refuel the vehicle directly prior to the leak test
due to the strong emission of gas by the fresh fuel.
RA Checking fuel tank and tank ventilation system for leaks
BMW AG - TIS
19.01.2013 11:13
Issue status (12/2007) Valid only until next DVD is issued
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