I had similar when I ordered some new oil for the gearbox, I'd read on their forum about the improvements people had gained, but there were two measurements for a total fill, so I emailed asking to buy the 'correct amount' for my R380. They telephoned back and asked about drain plugs, spanners etc and were trying there best to explain to me what to do (I thanked them and told them that the garage was going to change it for me while it was in for something else). When the package arrived, they had included FREE AND WITHOUT ASKING some seals and a spanner in case I changed my mind!
They seemed to really have the personal touch (big enough to cope, small enough to care).
