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#1
05-18-2010, 12:17 PM
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What is this....and this?
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#3
05-18-2010, 12:46 PM
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go to realoem.com and see if you can find it via the diagrams?
__________________
2003 BMW E53 X5 4.4i - M62 engine (Non Sport with Premium and Cold Weather Package) Color: Steel Gray Metallic Mods:4.6is Exhaust (Pipes, Mufflers and chrome oval tips) BMW Sport package Taillamps, BMW Tire Valve Stem Caps Medium tinted front windows JVC HD Radio Alpine 4x100 channel Amp Orion 600W Mono HC Amp Three 12" Sony Xplode in subwoofer enclosure
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#6
05-18-2010, 01:10 PM
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The vacuum line is likely the reason for the SES light, and hopefully the reason for the bogging. The threaded hole would be for a bracket to hold something, like the metal cross pipe between heads for the secondary air system. If there is nothing there, no big deal... likely not used.
__________________
"When you do things right, people won't be sure you've done anything at all" (Bender, futurama) You make something idiotproof, they'll make a better idiot You think professional is expensive, just wait until you pay for amateur. Never let your sense of morals prevent you from doing what is right. Examine what is said, not who speaks. X5 pics RIP 4.6is..... 2003 4.6is 
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#7
05-18-2010, 02:31 PM
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on the mystery hole, after the X had cooled down some, ran a few minor tests on at and it seems to have vacuum, i no longer have a vacuum gauge so used a thin piece of paper and it would get "sucked" to it there is also really thick oil residue built up on the radiator house directly in front of the hole???
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#8
05-18-2010, 03:16 PM
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the leak at "A" would let un-metered air into the intake so prob for the poor running and probably poor braking too. as for "B" i wonder if it has anything to do with the EGR system, i will check my 4.6 when i get home.
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#10
05-18-2010, 04:21 PM
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Snapped a pic of item B in questions, as posted above its a screw with a torx pattern.
 Looks like you could use some new valve covers. How about this? 
__________________
2002 X5 4.6 Sold Dinan CAI, TB, Mass Air, Stage 4 engine & tranny software, X-pipe 2004 745Li 1997 Ford Mustang Cobra Vert 1985 Mazda RX-7 13B-REW single turbo 60-1, Haltech, Meth injection, MSD Ignition, and much more 2008 Mazda Speed3 Hypertech Tune   
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