5 Series E60 520d (N47) SAL
MSS65
27C3 "DMTL leak detection"
2779 "DMTL leak detection"
Table 4: Fault in tank leak measurement
Note:
Diagnosis will be interrupted if you start refuelling while diagnosis is in progress.
If the faults listed in Tables 2 and 3 are diagnosed twice in succession, an entry
will be stored in the DME. The "Service Engine Soon" indicator light comes on,
prompting the customer to drive to a workshop for diagnosis and leak detection.
A fault relating to fuel tank leak detection very often occurs in connection with the fuel filler
cap not fitted or closed correctly.
The so-called "Check Filler Cap" or "Check Gas Cap" function has been introduced to
prompt the customer to check the fuel filler cap.
3. Check Filler Cap / Check Gas Cap function
The Check Filler Cap / Check Gas Cap function is a prompt to the driver in the event that
the fuel filler cap was not replace or closed properly after refuelling.
This function usually runs after every refuelling and gives a warning message in the
instrument cluster. This gives the driver the opportunity to close the fuel filler cap correctly
before the system starts a leak check.
The key difference between this function and the OBD II leak check is that with the CFC /
CGC, the MIL indicator light (or "Service Engine Soon" indicator light) is not actuated.
Figure 3:
"Check Filler Cap" indicator lamp.
Phase-in September 2001
Figure 4:
"Check Filler Cap I" indicator lamp.
Phase-in September 2003
SI Diagnosis of fuel tank systems with fuel tank leak diagnosis module (DMTL) All U
BMW AG - TIS
23.01.2013 15:32
Issue status (12/2007) Valid only until next DVD is issued
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