Adjusting Convertible Top Stop Screws (Convertible Top Cover Chafing)

54 34 095 - Adjusting convertible top stop screws (convertible top cover chafing)





Special tools required:
- 54 3 191 54 3 190 Adjusting Gauge Set for Convertible Top
- 54 3 192 54 3 190 Adjusting Gauge Set for Convertible Top
- 54 3 193 54 3 190 Adjusting Gauge Set for Convertible Top





Note:
Adjustments serve to avoid chafing and pressure marks in the following areas of the convertible top cover:

1. Area, C-pillar
2. Area, window cutout
3. Area, seam next to and above rear window





Necessary preliminary tasks:
- Measure gap A1 between top edge of stop screw (1) and top edge of main bearing (3).
- Note down measurement A1.

Note:
Do not release lock nut (2) yet.

- Remove rear seal 54 34 343 Removing and installing/replacing rear left or right seal on left and right "without seal carrier"
- Open convertible top fully and stow





Note:
The following operations must be carried out on the right side in the same way as on the left side shown here!

Insert special tools 54 3 191 54 3 190 Adjusting Gauge Set for Convertible Top / 54 3 192 54 3 190 Adjusting Gauge Set for Convertible Top on left and right in seal carrier.

Insert locking pin (1) in second screw head (2) from rear.





Special tool must not be able to move in seal carrier.

Check that special tool is correctly seated by moving back and forth sideways.

Special tool should ideally rest with its contact points (1) on seal carrier.





If the check stop (1) rests on the window cavity cover strip, the height h2 of the contact journal to the seal carrier must be checked.
If contact journal (2) does not rest on the seal carrier, the convertible top is adjusted too low.
- Measure gap h2 between contact journal (2) and seal carrier with feeler gauge.
- h2 = stop screw must be adjusted higher.
If the check stop (1) on the window cavity cover strip is higher than 3 mm, then the convertible top is set too high.
- Measure gap h1 between check stop (1) and window cavity cover strip with feeler gauge.
- h1 = adjust gap between 0 - 3 mm.

Note:
Ideal adjustment is achieved when all contact journals (2) on the seal carrier and check stop (1) rest on the window cavity cover strip. h1 max. +3 mm.





Note:
To calculate the adjustment dimension, multiply the measured dimension by 1.5.

1.5 = - Transmission ratio of mechanism
Example:

Measured h1 or h2 = 2 mm

2 mm x 1.5 =Adjust 3 turns of lock nut in the relevant measured direction h1 or h2.





Set special tool 54 3 193 54 3 190 Adjusting Gauge Set for Convertible Top on lock nut and release.

Twist stop screw (1) out of main bearing.

Note:
Stop screw is rendered stiff by Loctite, remove Loctite if necessary.





Turn lock nut (1) on thread of stop screw and adjust noted-down measurement A1 from bottom edge of lock nut to top edge of stop.

Note:
If necessary, use a new stop screw with a longer thread.

During installation, stop screw is no longer locked from below but rather from above.





Important!
The measured dimension is not equal to the adjustment dimension

If e.g. a gap h2 is has been measured between check stop and window cavity cover strip, the lock nut must be adjusted by the calculated number of turns in direction h2.

- Adjust number of turns
- Install and lock stop screw
- Repeat procedure until adjustments are in the tolerance range
Tolerance +0.5 mm between check stop and window cavity cover strip.





Note:
Add final details to vehicle.

Carry out function check Component Tests and General Diagnostics.