Pulled it to bits. Lots of dirty slimy grease and some dirt. The piston pushes out from the front of the unit, stick your pinky finger in and it should pop out. Mine was a bit sticky.
cleaned it all out, slathered some synthetic great in the space between the o-rings and reassembled.
Popped that back together, and reassembled all the trims and shields i removed.
Moved onto the HPFP cam follower.
Removed the cover with stupid integrated air filter
high pressure fuel pump
Easy to remove, just dont be like me and break the farking clip off the sensor plug. Zipties to the rescue. Ill get a new plug and repin it at some point.
Leaks a bit of fuel when removed, but otherwise straight forward. i did not remove the rubber hose under the pump, i left it connected.
Pulled the follower out and HAPPY DAYS, its in good condition with moderate wear. About what i would expect if it had been replaced 30,000km or so, so someone has done it in the past. Cam lobes looked good.
Popped all that back together, primed the pump to check for leaks, all good.
And lastly, fitted my new wipers. So good, they actually clear the screen unlike the old ones.
Over all the car doesnt feel much different, maybe a bit smoother. because i disconnected the better the DSG is learning again so its a bit iffy on its change speed and timing at times but that should sort its self as it adapts. I have noted boost is smoother, and i can hear more of a turbo intake noise and woosh on throttle let off.
one annoying thing is that since disconnecting the battery my indicators dont flash when i lock and unlock the car now. will have to do some googling.
