X Series E53 X5 3.0i (M54) OFFRD
16 00 102
Checking fuel tank and tank venting system
for leaks with tank leakage diagnosis module
(DM-TL)
Note:
An OBD fault is indicated by the "Check Engine" indicator
lamp in the instrument cluster lighting up. This may indicate a
leak in the tank venting system. Information on this is provided
by the fault memory of the DME control unit.
-
Read out fault memory of DME control unit and carry out
a diagnosis in accordance with faults stored.
-
A leak test with the DM-TL module is then carried out if:
•
The components of the DM-TL module are O.K.
•
A error is stored in the DME fault memory (tank leak
detected).
Adhere to following conditions in order to carry out a correct
leak test:
-
Content of fuel tank < 90%
-
Reserve indicator lamp "off"
-
Leave car in workshop for at least 2 hours so that fuel
temperature comes into line with workshop temperature
(ideal fuel temperature approx. 10...20
°
C).
-
Do not under any circumstances fill up car with fresh fuel
(strong exhalation of fresh fuel).
-
Check that tank cap is correctly seated.
Warning!
During the leak test, under no circumstance apply external
pressurization through the tank filler neck as this may cause
incorrect readings.
RA Checking fuel tank and tank venting system for leaks with tank leakage diagnosis
BMW AG - TIS
06.02.2013 17:38
Issue status (12/2007) Valid only until next DVD is issued
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