3 Series E46 330d (M57) SAL
=> DDE 4.0 engine management
=> Air-mass system test
In the air-mass system test, the cause of the fault in the air-mass system is isolated clearly
to the defective component group and the test module for the component group concerned
is automatically drawn into the testing schedule for working through.
The HFM is then only to be replaced if an appropriate instruction to replace the HFM is
given in the test module "Air-mass system test".
The following applies to both engines:
On no account should just the sensor element in the housing be converted. The position of
the sensor element is assigned to the housing and cannot be set in service!
Important:
Before programming, it must be noted that programming may abort on the E38 and
E39 under the following conditions:
1.
Programming abort on vehicles with DSC III (E38 and E39 from date of
manufacture September 1998 to December 1999)
2.
Programming abort on vehicles without DSC III
The cause of a program abort could be the ignition being switched off during
programming, by the connection between DIS/MoDiC III and the control unit being
broken or by the system voltage dropping below approx. 9 volts.
The functionality of the control units with FLASH technology are designed such
that programming can be repeated following a program abort.
In case 1:
During the programming procedure, the DSC III control unit interferes
with telegram traffic between the control unit being programmed and the
DIS/MoDiC III.
In case 2:
The control unit being programmed refuses to communicate with the
DIS/MoDiC III because of interference on the diagnosis cable.
Always connect up a battery charger before programming as a measure against a
programming abort. Never connect or disconnect the charger during programming.
The vehicle voltage must not drop below approx. 9 volts during programming.
In case 1:
Programming can only be correctly performed if the DSC III control
unit is rendered free of current throughout programming. This is done by
pulling the following fuse:
E38: fuse 17 (engine compartment)
E39: fuse 31 (glove compartment)
In case 2:
If programming is aborted and the situation is not described under 1
above, the control unit should be disconnected for approx. 1 minute.
After this, reconnect, switch on the ignition and perform programming again.
The most recent version of the air mass meter (part number 13 62 7 787 076) can be
recognised by the protective grille for deflecting particles of dirt and moisture (see
illustration 1).
SI Hot-film air mass meter (HFM) E38 E39 E46 with M47, M57
BMW AG - TIS
15.02.2013 01:35
Issue status (12/2007) Valid only until next DVD is issued
Copyright
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