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540 V8 View Drop Down
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    Posted: 08-February-2008 at 21:50
Originally posted by chazzer chazzer wrote:

Originally posted by 540 V8 540 V8 wrote:

if you think you have a fuel consumption problem but the engine seems to run ok, perhaps you have a heavy right foot! lol

this seems to be my problem ...

Likewise mate!  Mine has a healthy appetite for V-power

Mike

Current:E34 540i Touring 6 speed manual(Mpower bodykit & suspension)& Chrysler Voyager 3.3 V6 auto
Previous:E34 530iSE AC Schnitzer suspension.
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Points: 383 		Post Options Post Options   Thanks (0) Thanks(0)   Quote chazzer Quote  Post ReplyReply Direct Link To This Post Posted: 08-February-2008 at 13:46
Originally posted by 540 V8 540 V8 wrote:

if you think you have a fuel consumption problem but the engine seems to run ok, perhaps you have a heavy right foot! lol

this seems to be my problem ...

Current : 1995 BMW E34 540I Auto 98K Fully Loaded, Leather, Sat Nav & Dvd. Previous: 1991 BMW E34 520I Manual(non-vanos) 185K with full leather. 1990 BMW E34 525I Auto 113k in sterling silver
& 1993 BMW E34 520I SE in dimond black
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Points: 2280 		Post Options Post Options   Thanks (0) Thanks(0)   Quote 540 V8 Quote  Post ReplyReply Direct Link To This Post Posted: 06-February-2008 at 19:37

if you think you have a fuel consumption problem but the engine seems to run ok, perhaps you have a heavy right foot! lol

Maybe the idle control valve is on it's way out or you possibly have a vacuum leak somewhere though usually that manifests itself by the engine running lumpy. Do the revs pick up fine and quickly if you rev it hard? if not then it could be one of those mentioned or your air flow meter needs a clean.

Mike

Current:E34 540i Touring 6 speed manual(Mpower bodykit & suspension)& Chrysler Voyager 3.3 V6 auto
Previous:E34 530iSE AC Schnitzer suspension.
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Points: 6579 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Andrew Rolland Quote  Post ReplyReply Direct Link To This Post Posted: 06-February-2008 at 07:50

My E60 V8 idled at 500 rpm when warm, up to 1000 rpm I think when first starting.

The Diesel 520d I've got just now idles about 650 when clutch is in and about 750 when clutch is out.  Go figure that one?

Andrew
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Points: 85 		Post Options Post Options   Thanks (0) Thanks(0)   Quote stheaney2007 Quote  Post ReplyReply Direct Link To This Post Posted: 06-February-2008 at 00:13

Thanks mate

na mine stays 400 always, the fuel consumption is very bad actually....why do i have to worry

cheers
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Points: 2280 		Post Options Post Options   Thanks (0) Thanks(0)   Quote 540 V8 Quote  Post ReplyReply Direct Link To This Post Posted: 05-February-2008 at 21:42

Mine idles at 500 rpm when hot but about 700 when cold. I thought 500 was low but like yours, mine sounds fine. If you are sure it's running ok and goes fine then I'd not worry, unless your fuel consumption is sky high, then worry!

Mike

Current:E34 540i Touring 6 speed manual(Mpower bodykit & suspension)& Chrysler Voyager 3.3 V6 auto
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Points: 85 		Post Options Post Options   Thanks (0) Thanks(0)   Quote stheaney2007 Quote  Post ReplyReply Direct Link To This Post Posted: 05-February-2008 at 18:34

Hi

Was wandering my e34 540i idles at 400 (touch below half). it sounds ok tho! its not struggling or nothing.does anyone know what the proper idle for this model is? It idles 400 both hot and cold. when i rev it there is no delay or missing. Car was serviced not long ago. its always revved at 400!

cheers
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