Are Mercedes security systems Thatcham cat 1/2 approved?

[frontfloater]

Does anyone know if the factory-fitted alarm & immobiliser on my 2010 SLK-350 (R171) would be a "Thatcham approved" one ; and if so, whether it is category 1 or 2? I'm trying to renew my insurance online, and almost every site wants to know whether it has one.

The build sheet has items saying :

817 - Alarm for anti-theft warning system ; quantity 1
882 - Alarm system with immobiliser and interior protection ; quantity 1
885 - Enhanced anti-theft protection ; quantity 1

Thanks for any help.

[mk1coopers]

This might help.

https://www.thatcham.org/wp-content/uploads/2021/0...

[frontfloater]

Thanks - just what I needed.