Hi, I have an early S1 with the usual water/fuel contamination issues. Have therefore removed left side tank (original S1 tank, while right side tank seems to be S2) to connect new drainage-hoses. While removing left side tank I found couple of things I would be happy for insights on
Image 1 & 2 (luggage compartment - below rear window)
A= hose connected to the left side of the unit “B” and ends up other end (it seems) with an outlet into rear wheel arch
B= what is this unit? Is it related to fuel evaporation/venting system?
C= hose connected to right side of B-unit. This hose was only approx 30cm long as was cut in mid air (and stuffed in behind the luggage compartment side wall)
Image 3 (left side tank)
D=what is this - currently plugged- outlet from tank (maybe from earlier workshop tank replacement)
- What is the unit marked “B” (and its function)?
- How should hoses be connected to B (and to left & right fuel tanks)?