99 W208 230CLK dashboard issues

[essex2visuvesi]

Hello everyone, this is my first post and it's a question.....

Has anyone seen this before?
https://www.youtube.com/watch?v=6g2BQOjTTXo

Started the other day after the car was parked all day in a car park (In direct sunlight as there was nowhere shaded to park. the lights flash even with the key out so I have had to remove the instument cluster fuse so the battery doesn't run flat.
The car itself runs fine
Any thoughts on what the issue could be?

 

[essex2visuvesi]

Nosing around on tinterweb it seems there is a difference of opinion on wether I can just replace the cluster or I need it reprogrammed. If it needs programming what kit is required?

 

[sjmaxwell]

STAR diagnostic from Mercedes or an indie to reprogramme the cluster