3 Series E46 316i (M43TU) SAL
1.5 If the complaint occurs in spite of functioning longitudinal displacement, it will be necessary to carry balancing.
2. Balancing
Balancing involves compensating for any imbalance of the propeller shaft-final drive combination by attaching a
balancing weight (1.5 g or 3 g rubber plugs) to the final drive flange. The correct position and the appropriate
balancing weight is to be determined by the following procedure:
2.1 Detach both output shafts from final drive and tie to one side. Ensure there is a sufficient safety distance to the
rotating output flanges on the final drive for the test run.
Caution!
Observe safety precautions!
2.2 Then lower car so that it stands on its wheels.
2.3 Open engine hood for better engine cooling.
2.4 Start engine start and accelerate car slowly in drive position "D" until automatic transmission has shifted into 4th
gear. The noise level and the vibration performance must be evaluated subjectively for the critical engine speeds
determined in the test run. The best position for evaluating the complaint is at the rear end of the car; a 2nd person
will be needed for this. If roughly the same complaint occurs in the same engine speed range as during road
driving, we recommend the following amendment measures as described from Point 2.5.
Note:
Noises which may occur when the engine is revved up or when the transmission is upshifted into 4th gear are not
to be evaluated. These noises may be caused during upshifting of the automatic transmission in load-free status
by the circumferential backlash of the drivetrain.
To determine the best position for the balancing weight, proceed as follows:
2.5 Number bores in drive flange from 1 to 4 with chalk or felt-tip pen.
2.6 Coat 3 g balancing plug (Part No. 26 11 7 500 372) with press-in antiseize agent "Circo Light" (Part No.
RA Balancing of propeller shaft to final drive
BMW AG - TIS
19.01.2013 12:15
Issue status (12/2007) Valid only until next DVD is issued
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