Had my heldex fluid changed as recommended by Audi at 40k a few months ago.... When I had my car mapped by niki @ retch he told me I had a very small leak and to keep my eye on it (good lad) as Audi didn't say nothing ! I believe it's coming from the offside drive shaft, how do I go about topping it up and how do I know if it even needs it ? I will be getting the seal changed by Audi very soon but for now I just want to check the level. I've taken a pic of my heldex and seen there is x's on these bolts .... Am I right in thinking one will be drain and the other fill ?? The second pic is where it's leaking from. Any help will be appreciated cheers lads