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      04-18-2009, 10:07 PM   #45
Z4MHawk
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Drives: '06 Z4 M Roadster
Join Date: Feb 2009
Location: tulsa

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Just completed cdv change over and it was a little tougher than I thought.

Here are my thoughts:

1.) 2 person job
2.) The tube recommended in the write up should be expanded to include a brake bleeder bottle.
3.) Obvious point but brake reservoir is the clutch fluidreservoir.
4.) Use Dot 4 fluid or better. it said it on the top of the brake reservoir but it still might be a question and the owners manual is crap.
5.) You may loose a lot of fluid initially from the slave, even with the hose clamped from the reservoir. I don't know if this because I had the front tires on ramps and the angle of the slave. I used 8 onces of new brake fluid.
6.) use 7mm wrench to open and close nipple each time. Hand tite may let air thru between pedal pumps.
7.) It may take quite a few pumps of the pedal to get all the air out so be patient. follow dirrections from earlier zpost's to close nipple on down stroke.

Drives a lot smoother so I am happy with the change out. I also used white nail polish to match old cdv mark just in case.
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'06 Z4 ///M Roadster: Silver Gray Metallic; Gray soft top. Zeckhausen CDV. ESS VT1 445 Supercharger. APEX ARC8's. Dunlap Direzza Star Spec's. Strong Struts. Royal Purple. RPI Exhaust w/ DKF hangers.
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