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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 5 Series > E39 (1997 - 2003)

E39 (1997 - 2003)
The BMW 5-Series (E39 chassis) was introduced in the United States as a 1997 model year car and lasted until the 2004 when the E60 chassis was released. The United States saw several variations including the 525i, 528i, 530i and 540i. -- View the E39 Wiki

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  #1  
Old 04-21-2011, 04:55 PM
jimbob2 jimbob2 is offline
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problems with ccv replacement

The problem I'm having is getting the connector off between the expansion tank and the head, right under the front valve cover. I've searched all the ccv threads and don't see anything about it. just can't get it to release. anybody done this?
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  #2  
Old 04-21-2011, 08:00 PM
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Fudman Fudman is offline
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Why would you need to remove this? As I recall, everything associated with the CCV is on the other side of the engine.
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Old 04-22-2011, 05:27 AM
Jimmys 530i Jimmys 530i is offline
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Can you take a picture.
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Old 04-22-2011, 07:54 AM
rdl rdl is offline
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I think the connector you refer to is the one mentioned in paragraph 2 of my post here

http://www.bimmerfest.com/forums/sho...7&postcount=77

I found that I could complete the CCV without disconnecting the 3 plugs and pulling the wiring harnes toward the inlet manifold side.

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RDL
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Old 04-22-2011, 02:05 PM
jimbob2 jimbob2 is offline
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Thanks for the responses, I was finally able to get the connector off, it's different than the other connectors because it doesn't have the wire retainer clip, there's tabs on the sides that you have to squeeze together but you still can't pull it off, you have to squeeze and push it off with a screwdriver, I still was unable to pull the connectors completely through the thermostat housing but it gave me some slack. on the problem of getting the "s" tube onto the top port of the valve I found out that you don,t have to rotate the hose to get it on, if you push the connector hard it will snap on without rotating, the problem is being able to push hard enough up under the manifold, I used a screwdriver once I got the connection onto the valve to pop it on from the valve side. the way they designed the lock you have to turn it in the wrong direction to lock it and there not enough room to do that.

Last edited by jimbob2; 04-22-2011 at 02:23 PM.
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Old 04-22-2011, 07:18 PM
jimbob2 jimbob2 is offline
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Got the ccv job done, it's true when they say it's a bi**ch, if I did it again it would only take me half the time, but that's always the way. can't believe how many sensor connections there are. worse part is trying to get the 's' tube and the ccv in place. old ccv seemed to be good at 95k. all the hoses were clear and the valve seemed all right. one thing is the dip stick tube was clogged, if you think you have a ccv problem but don't think you can tackle the job I would at least take that tube out and clean it. it has a connection from the ccv that runs through a baffle in the dipstick. it's has a very narrow passage through the dipstick and clog's easily.
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Old 04-22-2011, 07:56 PM
bobdmac bobdmac is offline
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Thanks for the dipstick tip. Glad you got through it all okay.
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Old 04-22-2011, 10:10 PM
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bluebee bluebee is offline
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Now I no longer want to tackle the CCV when I find the round tuit!
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Old 04-23-2011, 03:02 PM
repcapale repcapale is offline
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Disconnecting this plug was the hardest part of the job for me. I almost gave up. It is just so awkward.
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Old 06-09-2012, 09:07 AM
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bluebee bluebee is offline
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Quote:
Originally Posted by jimbob2 View Post
I would at least take that tube out and clean it. it has a connection from the ccv that runs through a baffle in the dipstick. it's has a very narrow passage through the dipstick and clog's easily.
I came here again searching for a way to TEST for a clogged dipstick guide tube.

As the OP noted, the steel tube going from the CCV lower vent hose to the dipstick guide tube will clog solid.

I wrote up how I cleaned mine (it wasn't easy); and since I'm in a warm-weather clime, I'd guess almost EVERYONE (by now) has a similar problem.

So, if you know how to TEST for a clogged dipstick guide tube (without removing it), that would be a great input to this thread:
- How can we clean out a clogged oil dipstick tube (connection to CCV)?
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See also: E39 Bestlinks & How to easily find what you need
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