group 54 BMW 328I CONVERTIBLE 1998 E36 Convertible Tops Manual
[x] Cancel search | Manufacturer: BMW, Model Year: 1998, Model line: 328I CONVERTIBLE, Model: BMW 328I CONVERTIBLE 1998 E36Pages: 36, PDF Size: 1.35 MB
Page 19 of 36
Convertible Tops - 19
EM TOP INITIALIZATION
Initialization of the system is required for the CVM to learn the end limits of the top storage
cover. The CVM counts the pulses from the integrated hall sensor in the cover motor to
determine the cover position.
An initialization run occurs automatically after every eighth operation of the top. This
ensures that the hall sensor counting circuit is not adversely affected by any backlash or
elasticity of the top cover drive mechanism.
The hall sensor counter reading is
stored in a NV RAM, however it is
possible for this data to be incor-
rect or out of sync for the following
conditions:
Power supply interrupted while
top is in operation
Electrical failures that require
manual closing of the top.
Follow the procedures on this page
or refer to Group 54 in the Repair
Manual of TIS.
INITIALIZATION PROCEDURE
1. The top must be placed in the storage compartment
Motors engaged with the drives.
Top storage cover closed
2. Ignition key switched OFF.
3. Press and hold the top switch in the lowering direction.
4. Switch the ignition on (KL R).
5. After approximately 10 seconds the top storage cover will start to close and lock.
6. At this point release the the top switch. The initialization procedure will continue run-
ning. The procedure is complete approximately 0.5 seconds after the top storage cover
is closed and locked.
NOTE: The initialization procedure can be interrupted by switching the ignition off.
Page 23 of 36
Convertible Tops - 23
E36 CONVERTIBLE TOP ADJUSTMENTS
NOTE: All mechanical adjustments are critical for synchronous top operation.
The following adjustments are possible on E36 convertibles. The Repair Manual section of
TIS provides system component R&R and adjustment procedures.
The following Repair Manual
screens are from Groups 51 & 54.
The individual listings provide all of
the pertinent procedures for effec-
tively repairing a defect and adjust-
ing the components to effectively
maintain the precision operation of
the top mechanisms.
Example:Adjusting left or right
soft top compartment cover lock.
Group 5125.. additionally includes
the following E36 convertible top
specific procedures:
•Configuration of convertible top
cover
•Replace actuating lever
•R&R Bowden Cables
•R&R Top Cover Lock
•R&R Gas Struts for Top Cover
Page 24 of 36
Convertible Tops - 24
Group 54 25.. includes the fol-
lowing:
•Adjusting both top lid locks.
•Adjusting electric motor for
convertible top lid.
•Adjusting both bowden cables
for convertible top lid locks.
Group 54 25.. additionally
includes the following E36 con-
vertible top specific procedures:
•R&R electrical convertible top
lid drive unit
•R&R both convertible top
locks.
•R&R both bowden cables for
convertible top lid locks.
Page 25 of 36
Convertible Tops - 25
Group 54 31.. includes the fol-
lowing:
•Adjusting convertible top
(mechanical).
•Adjusting EM convertible top.
Group 54 31.. additionally includes the following E36 convertible top specific procedures:
•R&R complete EM Convertible Top
•Replacing rear window in convertible top
•Replacing convertible top fabric.
•R&R handle for convertible top lock
•R&R headlining in convertible top
•Replacing convertible top lid cover
•R&R base plate on left or right
Page 26 of 36
Convertible Tops - 26
Group 54 34.. includes the fol-
lowing:
•Adjusting Left/Right
Convertible top lock (fully
automatic system).
Group 54 34.. additionally includes the following E36 convertible top specific procedures:
•Initialization EM Convertible top
•Replacing linkages for convertible
•R&R electrical convertible top drive unit
•Replacing convertible top cover
•R&R finisher on convertible top lock
•R&R headlining in convertible top
•R&R both convertible top locks (fully automatic system)
•R&R motor for converter top lock (fully automatic system)
Page 27 of 36
Convertible Tops - 27
Group 61 31.. includes the fol-
lowing:
•Adjusting micro switch S4.
•Adjusting micro switch S3.
Page 28 of 36
Group 54 90.. includes trou-
bleshooting charts for the Semi
and Fully Automatic Systems with
links to repair procedures.
Group 54 90.. also includes a
micro switch logic table for diag-
nosis.
Convertible Tops - 28