Please follow the link to Viega's website for the latest information on spare parts:
www.viega.co.uk/en/products/Spare-parts.html

Tempoplex drain - Instruction for Use 

https://web-catalog.viega.com/en_GB/html/Mounting/Drainage-technology/Drains-for-bathtubs-and-shower-trays/9180ef046d943215ac11409401bcd4ed_2_en_GB/pdf/ga_tempoplex-drain_2_en_--.pdf

VIDEOS on youtube: 

HOW TO REMOVE A FLUSH AND FILL VALVE ​​​​​​

https://www.youtube.com/watch?v=f-Vw_BgnACw

HOW TO REINSTALL FILL AND FLUSH VALVES ​​​​​​​

https://www.youtube.com/watch?v=bdMncR9PeM8

HOW TO INSTALL A FLUSH PLATE with Bowden Cables​​​​​​​

https://www.youtube.com/watch?v=n2oaVSbmCfY