3 Series E46 316i (M43TU) SAL
16 00 100
Checking fuel tank and tank ventilation
system for leak-tightness
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.
First the fault memory of the DME control unit must be read
out and a diagnosis conducted. 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 vehicle 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.
Release screws (1/3), remove panel (2).
Remove expansion rivet (4), remove panel (5).
Unlock line (4) and detach from dust filter.
Seal dust filter with special tool 16 1 157.
RA Checking fuel tank and tank ventilation system for leak-tightness
BMW AG - TIS
19.01.2013 11:12
Issue status (12/2007) Valid only until next DVD is issued
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