R230 sweats on the gearbox ? Buy Yes/No ?

Hello, I inspected a R230 (SL500) yesterday before the purchase, but offered me the following insights (see photos) – I then got stuck on the gearbox, which was covered by the disguise. However, I could take a few photos. Car is BJ 2003 and has 80 TKM. Is this a sweating or is it already a licking ? What would cost me here the repair and what is the problem, how would the cost for the repair be for the friendly ? demand already a similar picture of his – for me the question arises whether I should buy the car and if so whether the seller must therefore reduce the purchase price !!