Retractable Hard Top Seal Replacement Update

The content of this article reflects the changes identified in TSB-540308.

Retractable Hard Top Seal Replacement Update

From the start of production, a hot melt butyl adhesive was required to secure a replacement roof shell seal to the respective roof shell of the RHT (Retractable Hard Top).

A new type of sealant and updated repair instructions are now available. Hot melt butyl (P/N 83 19 7 187 744) is no longer required for this repair.

The following repair instructions, are now correct.
RA 54 37 005 Replacing the front roof shell seal
RA 54 37 015 Replacing the middle roof shell seal
RA 54 37 025 Replacing the rear roof shell seal

Depending on which roof shell is receiving the new seal, up to 3 different cold applied Butyl part numbers will be needed.
- 15mm flat Butyl tape
This part is correctly listed in the electronic parts catalog (EPC) and is P/N 83 19 0 153 321.

- 7mm round Butyl cord
This part is listed in both EPC and the repair instruction, but is not currently available.
Alternatively, 6mm round Butyl cord P/N 83 19 0 000 537 should be used.

- 4mm round Butyl cord
This part is listed in repair instructions but is not currently available.
Alternatively, 3mm round Butyl cord P/N 81 22 9 407 639 should be used.

NOTES:
- Fasteners for the seals should not be reused. Fastener kits are available for each of the roof shell seals and are noted in the EPC.
- The windows should be adjusted after a roof shell seal replacement per repair instruction RA 51 32 154 (front) and 51 37 154 (rear).
- After repair, the vehicle should always be thoroughly water tested per repair instruction RA 54 37 ...In addition, it is beneficial to water test the RHT in a wash bay or using a hose (low pressure but a high volume of water).