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E34 (1989 - 1995)

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  #1  
Old 12-05-2009, 12:23 AM
BOLTEYES-82 BOLTEYES-82 is offline
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Location: Kent
 
Join Date: May 2009
Posts: 59
Mein Auto: e34 540i
540i auto engine into manual car ASC!!!!

hello all,

i have a 6 speed manual late 94 540i, which appears to have head gasket trouble i also have my old car a 94 540i auto, i know i can use the engine long as i change the flywheel and fit the bearing in the crankshaft cavity.

However i have been worrying about a potential new problem the manual car has ASC control but the auto doesnt it appears the only difference is at the throttle body air supply itself i.e. different elbow and extra TPS and some sort of actuator?

does anyone have any experience if i swap the engines then swap all the throttle body piping over this be ok and will the ASC still work???

any help id begrateful thanks
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  #2  
Old 12-05-2009, 08:56 AM
BMR_LVR's Avatar
BMR_LVR BMR_LVR is offline
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Location: Asheboro, NC
 
Join Date: Dec 2008
Posts: 5,264
Mein Auto: 1992 525i
I wish I could offer an answer. I just didn't want you to think that nobody was going to help you (free bump). The E34 forum is less active than some of the others. There are some very knowledgeable people here (especially Chad) that will likely chime in with some good advice.

Let us know how it goes if you do the swap.
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Calypso Red 1992 525i with 200K miles

1991 735i - Sold
1992 525i - Sold
1995 325is - Sold
2000 528i - Sold

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  #3  
Old 12-05-2009, 07:59 PM
yaofeng yaofeng is offline
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Location: East Brunwsick, New Jersey
 
Join Date: Mar 2008
Posts: 295
Mein Auto: 525/540it/540it/325/mini
The only problem I have left after doing the 6 speed conversion is the ASC+T light being on all the time. It remained so when my daughter wrecked it in March. Now I moved the 6 speed drive train to a 530it it is still on. I am also trying to find a resolution to it.
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'95 525i 5 speed, built 5/94, with a 93 m50tu engine
'94 540it built 3/93, converted to 6 speed with a 93 e32 m60 engine
'01 540it, built 6/01
'03 325i 5 speed, built 9/02
'10 mini 6 speed
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  #4  
Old 12-07-2009, 10:32 AM
jimoreno jimoreno is offline
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Location: Parsippany, NJ
 
Join Date: Jul 2006
Posts: 487
Mein Auto: 2006 X3
Just swap the engine itself and keep the intake from the car and you shouldn't have any problem. IIRC, this is part of the ABS computer that's already in the car. There's nothing in the motor itself specific to the ASC besides the additional butterfly in the intake.
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