1993 E34 540i idle at 400
Printed From: Bavarian-Board.co.uk - BMW Owners Discussion Forum
Category: Technical & Model Specific Forums
Forum Name: BMW 5 Series
Forum Discription: This forum will deal with any issues on the BMW 5 Series (E12, E28, E34, E39, E60 & E61)
URL: http://www.bavarian-board.co.uk/forum_posts.asp?TID=40207
Printed Date: 16-June-2024 at 17:58
Topic: 1993 E34 540i idle at 400
Posted By: stheaney2007
Subject: 1993 E34 540i idle at 400
Date Posted: 05-February-2008 at 18:34
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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 |
Replies:
Posted By: 540 V8
Date Posted: 05-February-2008 at 21:42
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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 Previous:E34 530iSE AC Schnitzer suspension. E28 525e auto-Standard |
Posted By: stheaney2007
Date Posted: 06-February-2008 at 00:13
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Thanks mate na mine stays 400 always, the fuel consumption is very bad actually....why do i have to worry cheers |
Posted By: Andrew Rolland
Date Posted: 06-February-2008 at 07:50
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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 ------------- Be exclusive and drive a Petrol 5 Series! Current '13 62 F10 535i MSport Auto Previous '04 04 E60 545i SE Auto '03 53 E60 545i SE Auto (Stolen) '98 S E39 523i SE Auto |
Posted By: 540 V8
Date Posted: 06-February-2008 at 19:37
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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. E28 525e auto-Standard |
Posted By: chazzer
Date Posted: 08-February-2008 at 13:46
 ------------- 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 |
540 V8 wrote:Posted By: 540 V8
Date Posted: 08-February-2008 at 21:50
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. E28 525e auto-Standard |
