Automatic Shiftlock, Checking Function (Automatic Transmission) - BMW 1999-2005 M3 Service Manual

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Automatic shiftlock, checking
function (automatic
transmission)
The automatic shiftlock uses an electric
solenoid to lock the selector lever in
Park or Neutral. Depressing the foot
brake with the ignition on energizes the
solenoid, allowing the lever to be
moved into a drive gear. The solenoid
is energized only when the engine
speed is below 2,500 rpm and the
vehicle speed is below 3 mph. The
solenoid is mounted in the right-hand
side of the selector lever housing.
Automatic shiftlock prevents drive gear
selection until the brake pedal is
depressed.
With engine running and car
-
stopped, place selector lever in
Park or Neutral.
- Without depressing brake pedal,
check that selector lever is locked
in position Park or Neutral.
Depress brake pedal firmly.
-
Solenoid should be heard to
energize.
Check that selector lever can now
-
be moved out of Park or Neutral.
Note:
The next test should be performed in an
open area with the parking brake on
and with extreme caution.
With selector lever in Park or
-
Neutral and brake pedal
depressed, raise engine above
2,500 rpm. Check that selector
2/25/2009 10:19 PM