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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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  #1  
Old 01-12-2015, 07:28 PM
Cabover1000 Cabover1000 is online now
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Location: Belding,Michigan
 
Join Date: Dec 2013
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Mein Auto: 1998 bmw 540i
the best $8 i have spent on the 540i

So i did a smoke test on my car and found that the front intake profile gasket had a massive vacuum leak. so i put a new one in and now my car feels like a new car. I had hard down shifts and it idled very bad. I'm hoping this will also improve my gas mileage.
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  #2  
Old 01-12-2015, 08:31 PM
joekitch joekitch is offline
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was the $8 for the cigar?
i dont know why people look to specialized smoke machines for smoke tests tbh
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  #3  
Old 01-12-2015, 08:50 PM
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bluebee bluebee is offline
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Location: San Jose, California
 
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Mein Auto: 02 BMW 525i M54 auto 130K
- How to make your own smoke machine (1)
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Please read the suggested threads, where the best always add value to those threads, either by pictures or by descriptions, so the next person with the same problem stands on your shoulders.
See also: E39 Bestlinks & How to easily find what you need
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  #4  
Old 01-13-2015, 04:16 AM
Cabover1000 Cabover1000 is online now
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Location: Belding,Michigan
 
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Mein Auto: 1998 bmw 540i
Quote:
Originally Posted by joekitch View Post
was the $8 for the cigar?
i dont know why people look to specialized smoke machines for smoke tests tbh
I did the smoke test for free. It was $8 for the gasket.

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1998 540i sport, cold weather package.
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  #5  
Old 01-13-2015, 04:21 AM
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Flybot Flybot is offline
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Location: Louisville, Ky
 
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Mein Auto: '98 528
Quote:
Originally Posted by bluebee View Post
- How to make your own smoke machine (1)
LOL, That link goes to ebay for a $1200 smoker.
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  #6  
Old 01-13-2015, 04:40 AM
theWalkinator theWalkinator is online now
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Mein Auto: 2002 BMW 540iA
I need to do this, my car also sometime idles rough in very cold morning so there must be vacuum leaks somewhere , I got gasket in hand, was preparing doing valley pan gasket, just being lazy due to cold weather.
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  #7  
Old 01-13-2015, 05:06 AM
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dolfan13 dolfan13 is offline
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If you have an air compressor ,two hoses,coffee can and a cigar.Google it,easy.
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  #8  
Old 01-13-2015, 06:51 AM
MuscleWagon MuscleWagon is online now
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Location: NC
 
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Mein Auto: 99 540iT
Quote:
Originally Posted by Cabover1000 View Post
front intake profile gasket
Part #? TIA


Quote:
Originally Posted by theWalkinator View Post
I need to do this, my car also sometime idles rough in very cold morning so there must be vacuum leaks somewhere , I got gasket in hand, was preparing doing valley pan gasket, just being lazy due to cold weather.
Have you replaced the gaskets (2) between the throttle body and intake manifold? Replacing these gaskets and a bad ignition coil solved my morning rough idle. See link for DIY. Use caution when removing/reinstalling the plastic connection at the intake boot and be sure to torque the bolts to spec when putting everything back together.

http://www.bimmerforums.com/forum/sh...-fix-M62-M62TU
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