N62 4.4L rough idle

[Brandon002]

That's really odd as I have an 04, 4.4 as well. I changed both CCV's and they were both located on the valve covers only.

[Brandon002]

This is the cylinder head blowup from my 04 4.4




Notice the CCV's on each valve cover?

[burtsplash]

Originally Posted by Brandon002

That's really odd as I have an 04, 4.4 as well. I changed both CCV's and they were both located on the valve covers only.

I know. When I took off the engine plastic covers, I was expecting to see one on each head cover. It took me a few seconds to finally find the one in-line. The schematic is not the real thing I have in my 04 4.4L but the part# is right.

[Brandon002]

what was the production date of your car? I know they made some changes halfway through the 2004 model year. They went from a water cooled alternator to air cooled among a few other changes.

[burtsplash]

Originally Posted by Brandon002

what was the production date of your car? I know they made some changes halfway through the 2004 model year. They went from a water cooled alternator to air cooled among a few other changes.

June 04

[Clockwork]

Originally Posted by burtsplash

I know. When I took off the engine plastic covers, I was expecting to see one on each head cover. It took me a few seconds to finally find the one in-line. The schematic is not the real thing I have in my 04 4.4L but the part# is right.

so you DO have three CCV valves? one on each cylinder head and then this third one in the hose?

Hmmmm I wonder if it will fit all N62 engines?
I've got an production date of April 2005 and when I look up my VIN there shows no alternate part for the cyl 1-4 hose, just what I have currently installed.

The part # I have (11617547185) is available from Oct 2004 - Nov 2006 for the N62 FB53, but from Nov 2006 to present I assume, this looks to be the new part 11617563476 (with an ccv valve built in-line, therefore adding a 3rd ccv valve to the mix).
Funny, when I do a VIN search, this PN 11617563476 does not show up as an option for me but if I search that part #, it shows that its an option for my N62 engine.

I'm just surprised there is room for that CCV valve and that this method could help reduce issues.

[burtsplash]

I DON'T have 3 valves, only 2. The passenger's side valve cover do not have a valve on it. Instead the valve is located remotely in a casing like the picture sent by clockwork. The driver's side one is on the valve cover. The part# for both is 11127547058.

[Clockwork]

then why does the updated hose have a 3rd ccv valve in it IF the current N62's already have two ccv valves built onto the valve covers?
I'm assuming the necessary hose for the current N62 engine, cylinders 1-4 would be the hse that does NOT have a ccv valve built in.
odd that ETK/Realoem does not mention this.

[Brandon002]

I thought I heard something about an updated valve cover a while back? Maybe this has something to do with it?

My N62, May 2004 build date has a CCV in each valve cover.

[dpgx5]

http://www.xoutpost.com/bmw-sav-foru...ictures-3.html

Post #27 shows the update.

http://www.xoutpost.com/attachments/...b-11-01-07.pdf also pdf added which also follows the thread above.

There is an update from BMW for the heads that changes the CCV from internal to external addition within the hose.

Maybe you already had the update completed on the one side?
Any records from the PO?