Summary of Technical Service Bulletin
This Technical Service Bulletin addresses a gear oil leak from the case halves of the bevel box due to the currently used sealant type.
Affected vehicles include the Arteon (2019-2021), Atlas Cross Sport (2020-2021), Atlas (2018-2021), and Tiguan (2018-2021).
The production solution involves an improved bevel box design used in vehicle production as of March 26th, 2021.
The service solution involves removing the bevel box, cleaning the exterior of the bevel box, removing old sealant, and applying new silicone sealant.
Additionally, the bevel box fluid level will need to be checked and topped up if necessary.
Manual:
Download: Volkswagen Technical Service Bulletin – 39-20-01 Bevel Box Case Half Leak (2021)
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