I'm helping a friend with a 2005 A3 2.0 TDi (140) at present. We've managed to allow air into the system after repairing a seized calliper and although we've bled at every wheel air remains. I noticed a lot of posts saying that the master cylinder MUST be bled after air entering the system (as well as maybe ABS pump with VCDS which we can try next). Just wondering WHERE exactly the bleed nipples are on the master cylinder ? From what I can see there's the reservoir and one or two main pipes but I cannot see bleed nipples anywhere - can someone show a photo or describe exactly where to look please ?
And when bleeding is it the one nearest the bulkhead first (that is assuming of course they are on this car lol) ?