Oil misting a class
MERCEDES-BENZ A-Class (W177)

I am the owner of a200 class Mercedes amg 1.3. It is 2019 plate and has 40k. I bought it with 26k on one owner before. Had car a year. 

I had a service a month ago at a reputable garage and they have found oil misting on top of engine that must be coming from the cam. It’s a very small amount that develops roughly every week and to be fair when I use a wet wipe hardly amount comes off looks worse than it is 

I took it to German auto care and they said it would be over £800 to fix but at this time it doesn’t seem a big issue.

What are your thoughts? Thr picture attached was when it hasn’t been cleaned up so looks worse