Member, P400 Sport, DSC On (>550)
Join Date: Jan 2008
Thanked 76 Times in 62 Posts
Couple of things of note from my replacement:
-Yes, TIS says you don't need to disconnect the VANOS oil lines. But not worth the aggrevation, order up the replacement crush washers (2 ea of #07119963072 and 2 ea of 07119963129) for the banjo bolts and flop the oil lines out of the way, makes it much easier.
-Had to really pull and wiggle to get the housing off, the water pipes did not want to pop out.
-I replaced the inner seal, I'd agree with the previous posts that its probably not necessary, but I had already bought the damn thing. MAJOR PITA to get out.
Should replace your oil seperator drain lines while you have the t-stat housing off. Have to have the t-stat housing off to get at the drain lines, and our engines are old enough now that rubber hoses are starting to deteriate.
#11151407344 and #11151406902 along with the clamps for the bottom end, 2 each of #07129952107
I had to borrow a big socket from a friend to press the new inner seal back into the t-stat housing.
He says the M5 thermostat design is identical to the one Caterpillar has been using on their big diesel engines for the last 20 years or so.