3 Series E36 320i (M52) CONVER
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.
Remove luggage compartment mat and spare wheel, take off
battery cover.
Unfasten hexagon nut (1) and plastic nut (2). Remove cover of
activated carbon canister upward.
RA Checking fuel tank and tank ventilation system for leak-tightness
BMW AG - TIS
06.02.2013 23:26
Issue status (12/2007) Valid only until next DVD is issued
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