XSeries-forum

went out last night to take a few pics of the car, noticed the plastic cover on top of the engine was loose
took it off  to see how it fastened, and noticed this

now im positive, they were once pipes



steve

Well that won't help with engine performance!

Richard

Will need changing - arguably should be checked as a service item.

Keep an eye on rocker gaskets .... Chances are they will need attention soon  if not already sorted.

had a quick looksie round and there isnt any oil on the rockers . its actually quite clean in there . obviously apart from this 

oh x5sport , what do you think this would cause performance wise?

poor running , high fuel ?.

Not knowing what the pipes do I can't tell you, but I would expect that if they have vacuum or gas flow then that could upset the engine as the 'system' isn't sealed correctly any longer.

Richard

They are part of the crank breather system. It's time for a service on those bad boys. You need to at minimum change the pipes but it's commonly agreed that the Pcv valve on the back of the plenum should be changed and the oil cyclon ether cleaned out or replaced aswell. There are a couple of small diameter pipes at the back that will need doing aswell.

ive ordered the 5 pipes and the cyclone valve  not got the pcv one but if that needs changing I can get that aswel