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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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Old 04-01-2011, 09:18 AM
poolman poolman is offline
Officially Welcomed to the 'Fest
Location: martinsville va
Join Date: Nov 2005
Posts: 4,865
Mein Auto: 525i station wagon
If your carfull you can remove the distribution piece without breaking anything. Doru, you just changed your CVV and hose not long ago. You shouldn't have any trouble to clean the distribution unit. The way I clean it, is to remove the part using a very long screw driver to pry up gently at each port front to back. I use throttlbody
cleaner and spray into each port slowly until the whole of the body is full. Walk away afterwards and let the part soak for about 10 min and then come back and use some compressed air to get the junk thats in the part out. Of course have some new 0 rings ready to replace the old parts on the DU.
On checking the DU for vac leaks, you would be surprised how many told me I would hydrolock my engine
by having a few drops of water introduced to the combustion chamber from my methods mentioned.

Last edited by poolman; 04-01-2011 at 09:22 AM.
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