xc90 coolant loss

[Rooster]

Believe its shown with crankcase breather pipes,

Can only buy the whole pipe that runs over engine from memory and there a complete pain in the arse to change

[bobdabuilda]

Got the part off today and its basically been rubbing on the engine and worn a channel through the aluminium pipe and perforated causing the coolant leak. The mechanic replaced it with a piece of copper brake pipe and made sure it was no longer at risk of rubbing. Looks like a design fault, no doubt of Ford design..... pics below (first pic shows the wear and hole btw) Anyone know what part number this piece is as I couldn't see it on the schematics from earlier.

Have a concern regarding copper pipe possibly reacting with coolant or galvanic corrosion twixt aluminium rad and copper tube and would have preferred stainless steel or aluminium tubing, any thoughts on this?

[Desperate]

A lot of car radiators used to be made of copper, and I think a lot still are, there's a lot of copper plumbing about our houses too, copper seems to last a lot longer than most other materials as far as I know.

Desp

[Just Drive]

Originally Posted by bobdabuilda

Got the part off today and its basically been rubbing on the engine and worn a channel through the aluminium pipe and perforated causing the coolant leak. The mechanic replaced it with a piece of copper brake pipe and made sure it was no longer at risk of rubbing. Looks like a design fault, no doubt of Ford design..... pics below (first pic shows the wear and hole btw) Anyone know what part number this piece is as I couldn't see it on the schematics from earlier.

Have a concern regarding copper pipe possibly reacting with coolant or galvanic corrosion twixt aluminium rad and copper tube and would have preferred stainless steel or aluminium tubing, any thoughts on this?

Just had this part fail on my car. Coolant dumped somewhere on the motorway!

It's not on any of those diagrams because it's listed under the heading 'Crankcase Ventilation'. Also you can only get it along with the rubber pipe! Retail is £59.

Part No. 3075713

[Ade2015]

My one of these has just gone in the same place. Started losing a small amount of coolant over the last week and stripped it down to try and locate today.
I saw this thread when doing a bit of research and didn't believe the metal pipe in question was part of the coolant system; partly because of it being listed on Vida as crankcase ventilation, but I also couldn't see how it connected to the coolant system. So I wasted a fair bit of today looking elsewhere before checking this - annoying!
I guess the metal pipe over the top of the engine must be in 2 sections - is the hot coolant used in this pipe to keep crankcase oil in vapour form till it hits the swirl pot at the front of the engine?
It could be one for anyone else with a D5244T4 to look out for as mine is also a 2007, so similar age.
I've rounded off the shoulder of the rebate where this part sits on the turbo inlet pipe, so hopefully the replacement won't wear in the same way.
Oh - I think the part number above was missing a digit - probably is 30757132 for the replacement.

[Thassos]

Hi Ade,

I too recently got the coolant low message on the dash, and found coolant leaking underneath the car on my S60 (D5 euro 4) 2006..

Managed to find the source of the leak which was a small pipe (apprx 15mm dia) which runs from near the large rad top hos connection on the engine block to the right (see pic attached). Also couldn't understand why what's shown as the crancase vent pipe should have coolant in it .. so im thinking your theory that the coolant is used to heat the inside of the larger OD metal pipe (20mm dia) that carries the crank venting could make sense, im guessing the far end where the U piece is that wore away on yours is how coolant returns to the block via the small piping.

Anyway would be interested to hear from anyone who might know if this is correct.. Also the round topped component, is this the crank vent / filter or something like? and does it need any maintenance?

First pic is the start of the pipe run near the top rad hose
2nd pic is where its leaking, and the round ? thing
3rd pic shows the larger pipe that runs over the top of the engine

[cornerwaysuk]

Hi I have a similar issue with mine, loses about 500mls every 3 weeks or so, never really bothered me but having seen this post and had a similar issue on a Nissan I use to own I shall now investigate.
Is the coolant system on the D5 the same as the 2.5T? Regards Eric

[Wayde]

I had this same problem, I am in South Africa so feel that the little bit of heat that it provides to the crankcase breather is unnecessary. I simply removed the U shape pipe, the picture in post #12, and the short pipe onto the plastic Y fitting and bridged the pipe going from the engine to the Y fitting. Over a year and no issues and I have driven hard and over 10000km with mostly long distance trips. Just a quick fix that could help while you source the part. Mine is permanent though. As a note, this might not work as well in colder climates as that is what the part was designed for.

[paulthechosenone]

The same part has failed on my car although mine is a pin hole, not easy to find but helped enormously by this thread. Also, not easy to get to.

[Thassos]

Hi paul,

post a pic of where your leak is..did you get it fixed?