Programming and Relearning

54 0 ... Notes On Steel And Glass Slide / Tilt Sunroofs (initialization / Normalization / Learning Of Characteristic Curve)

NOTE:
Initialization comprises:
- Normalization
- Learning characteristic curve
- The mechanical end positions are recorded and stored during normalization.
- The characteristic curve is learnt immediately after normalization.
- When the characteristic curve is learnt, the mechanical closing forces of the slide/tilt sunroof are recorded and stored for correct operation of the anti-trapping mechanism.

NOTE:
An initialization must be performed:
- In the event of malfunctions, e.g. no one-touch function, no opening or no comfort function possible.
- After disengagement of the drive unit.
- If necessary, after an interruption of the power supply.
- After work is carried out on the mechanism of the slide/tilt sunroof.

NOTE:
- The initialization sequence is dependent on the software version of the slide/tilt sunroof module (in the sunroof drive unit).
- If necessary, code slide/tilt sunroof drive unit.

WARNING: There is no anti-trapping protection during initialization.







Normalization:
- Press and hold the switch in the "Lift" direction
- In the event of delayed starting or sudden stopping of the slide/tilt sunroof, continue pressing the switch in the "Lift" direction.







- After reaching lift end position (A), keep switch pressed for approx. 20 seconds further.
- Normalization is completed when the slide/tilt sunroof in lift end position (A) presses again briefly in the direction of position (B).
- Release switch.







Learning characteristic curve:
E38 from 9/98; replacement of drive unit
E39 from 3/98 E46 Compact
E46 Saloon, Touring, Coup� from 09/2001; initial equipment of drive unit
E46 Saloon, Touring, Coupe; replacement of drive unit
E53 slide/tilt sunroof (not: panoramic glass sunroof):
The curve is learnt manually in the following steps:
- Release switch after normalization for max. 5 seconds.
- Then hold down the switch in the raising position direction until such time that the slide/tilt sunroof has returned to the closed position after a complete opening movement.
- This concludes learning of the curve. The switch can now be released.

NOTE: Carry out function check (one-touch function, anti-trapping protection and, if necessary, comfort function).

E38 up to 9/98; initial equipment and replacement of drive unit
E39 up to 3/98:
In these cars, the curve is learnt automatically during operation by way of the module.
After normalization, open and close slide/tilt sunroof fully once by pressing switch.
In the event of faulty triggering of the anti-trap protection facility in specific positions, the fault can be rectified by moving over the relevant position numerous times.

E38 from 9/98; initial equipment of drive unit
E46 Saloon, Touring, Coupe up to 09/2001; initial equipment of drive unit:
The curve is determined by means of coding.