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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 7 Series / 8 Series > 7 Series - E38 (1995 - 2001)

7 Series - E38 (1995 - 2001)

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  #1  
Old 01-28-2013, 07:14 PM
jitsjaf2009 jitsjaf2009 is offline
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Location: Hemet, Ca
 
Join Date: Aug 2012
Posts: 451
Mein Auto: 1995 325i Convertible
"New" 1995 740i

Just bought a 95 740i to introduce my Wife to BMW. Got it real 'cheap' since the check engine light and the battery light are on and have been for about a year. PO is running Mobil 1 and has since he owned it (abour eight years). It is immaculate inside and out. The battery reads 12.4 volts with engine off and about 13.7 with it running and no change when swithing the headlights on. POs mechanic said he thinks that it is low output from alternator causing the battery light to stay on????? He also said the check engine light is probably same issue. He decided to sell it since it was his wife's and she has decided to get a new one and he couldn't get it smogged due to the check engine light. If she is getting a new one anyway, he would not put any money into it and sell 'as is'.
The driver side seat doesn't adjust (though the lumbar adjust works fine. The power steering column quit working at the same time (about three months ago). Once again his mechanic said it is probably a common problem as they are both tied to the memory???
I am still excited about the acquisition but hope for a little guidance from someone who knows these. (I have learned a lot from my 1995 325i covertible and 1995 325i four door,
but his is a different critter. Thanks for baring with my long-winded thread.
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  #2  
Old 01-28-2013, 09:44 PM
BMWFatherFigure's Avatar
BMWFatherFigure BMWFatherFigure is offline
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Location: Perth, Western Australia
 
Join Date: Aug 2012
Posts: 2,289
Mein Auto: E23;E30;E38;E32;E34 +
New alternator. maybe battery will come good - don't hold your breath. Chean all battery terminals, cables and earth points. Check all other earth points and plugs for clean and tight. That should make most of your problems go away. Hope you both enjoy your E38 as much as I enjoy mine.
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Good - Fast - Cheap: Pick any two.
Current:
E23 735i; E32 735iL (X 2 - 1 Alpine White and 1 Glacier Blue); E34 535i; E38 735iL; R50 Cooper; R55 Cooper Clubman.
Previous:
E21 318i; E30 318i; E32 735iL; E34 535i; E38 730iL; E53 4.4i
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  #3  
Old 01-28-2013, 11:10 PM
JasonSC540ia JasonSC540ia is offline
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Location: Alamogetto NM
 
Join Date: Aug 2009
Posts: 672
Mein Auto: 1999 740i
BMWfatherfigure is right. You need a alternator asap. Its going to leave you stranded on the side of the road one day. Eng light and battery light are not related. You need to pull the codes so you can see why the eng light is on.
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  #4  
Old 01-29-2013, 08:17 AM
jitsjaf2009 jitsjaf2009 is offline
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Location: Hemet, Ca
 
Join Date: Aug 2012
Posts: 451
Mein Auto: 1995 325i Convertible
Thanks to both of you for sharing your knowledge. I am going to go through all the items BMWFatherFigure suggested this weekend. Didn't have the opportunity w/e past. I am kind of anal on those types of things and like to "get to know" my car(s).
I do have a rebuilt alternator for an e36 passed on to me by a friend. Somehow I doubt it would be the same. I will get codes pulled this week. Will let you know. Any thoughts on the driver's seat and steering power adjustment??
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  #5  
Old 01-29-2013, 04:33 PM
BMWFatherFigure's Avatar
BMWFatherFigure BMWFatherFigure is offline
Old School
Location: Perth, Western Australia
 
Join Date: Aug 2012
Posts: 2,289
Mein Auto: E23;E30;E38;E32;E34 +
That should all come good as you work through the terminations, plugs and earths. Switch / contact cleaner, Loctite 767 with a critical eye and patience.
__________________
Good - Fast - Cheap: Pick any two.
Current:
E23 735i; E32 735iL (X 2 - 1 Alpine White and 1 Glacier Blue); E34 535i; E38 735iL; R50 Cooper; R55 Cooper Clubman.
Previous:
E21 318i; E30 318i; E32 735iL; E34 535i; E38 730iL; E53 4.4i
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  #6  
Old 02-05-2013, 05:59 PM
jitsjaf2009 jitsjaf2009 is offline
Officially Welcomed to the 'Fest
Location: Hemet, Ca
 
Join Date: Aug 2012
Posts: 451
Mein Auto: 1995 325i Convertible
Got the CEL taken care of...it was intake duct leak and gaskets on the intake manifold. Working on the battery light now. It isn't draining, and the battery and alternator check good. There sure are a lot of grounds and connectors on these!
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  #7  
Old 02-06-2013, 05:58 AM
BMWFatherFigure's Avatar
BMWFatherFigure BMWFatherFigure is offline
Old School
Location: Perth, Western Australia
 
Join Date: Aug 2012
Posts: 2,289
Mein Auto: E23;E30;E38;E32;E34 +
More of everything than in your worst nightmare!! Once you get everything clean and tight I think/hope that all your problems will go away. E38's are VERY volts sensitive so a couple of bad joints or a dirty earth will really throw spanners in the works! Beware that code readers can be mislead by bad connections so make sure the simple stuff is good B 4 you spend bulk $'s on faults that don't exist.
__________________
Good - Fast - Cheap: Pick any two.
Current:
E23 735i; E32 735iL (X 2 - 1 Alpine White and 1 Glacier Blue); E34 535i; E38 735iL; R50 Cooper; R55 Cooper Clubman.
Previous:
E21 318i; E30 318i; E32 735iL; E34 535i; E38 730iL; E53 4.4i
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