30 minutes to pull both covers (remove air intake, unbolt coils from vc's, unbolt fuel line and deal with fuel spillage, unbolt and remove covers)
30 minutes disassembling and cleaning left valve cover
30 minutes disassembling and cleaning right valve cover
20 minutes resealing
30 minutes to reinstall everything

we have a kit with the gaskets, rtv benz sealant, cap and bolts. also the option of adding the rtv applicator gun and such if you want to do this yourself. we can walk you through it.

there is no way to do this in an hour without cutting a lot of corners.

Blazodan, i recommend you find a local independent Mercedes repair shop if you prefer to not get dirty on this one. Yes this is a very dirty one since you have to scrap a decade of old sealant/oil/crud off the covers before you can reseal them.