Question about 2008 BMW 528i Sedan

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Where is adjustment for idle located in 528

Idle speed is high for me, expensive on petrol

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Idle speed is not adjustable, it is controlled by the fuel injection computer, even if you tried to adjust it the computer would over ride any adjustment made by you. I assure you idle speed has negligible affect on fuel consumption

Posted on Sep 08, 2008

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1 Answer

1997. Idle seems a bit high. How can I adjust it? I'm getting awesomely high mileage both city and highway but i think it could improve still more and the idling speed feels too high.


The idle speed is controlled by the engine computer through the idle air control valve , there are no provisions for adjusting idle . If idle is to high or you just think it's high , you need to test ,don't guess . Watch this video that shows what happens when you adjust thing's that you should not . Ford IAC valve test how to adjust minimum idle speed How to do it correctly !

Jan 16, 2016 | Mercury Sable Cars & Trucks

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Why does idle remain high on 1999 mercury villager


A stuck idle speed control motor ! Tap it with a wrench or something similar , You'll find it located on the throttle body ! Ford IAC valve test how to adjust minimum idle speed

Apr 07, 2015 | 1999 Mercury Villager

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How to adjust the idle speed on 1992 Dodge Ramcharger?


Its not really adjustable.
The computer controls idle speed via the idle air control valve.
You probably have a vac leak.

Mar 12, 2015 | 1992 Dodge Ramcharger

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When starting car idol to high.how do i adjust it?


Depending on the type of system you have, carburettor - there is a idle srew near the carb linkages, that you can turn up with the engine running that will adjust the idle. Also if its idling too high sometimes the autochoke could be stuck. If its injection - the idle solenoid could be gunked up. Remove and clean with carb cleaner or petrol then refit. And it will idle high at start then will settle Once engine reaches operating temp. Hope it helps

Feb 06, 2015 | 1999 Ford Explorer

1 Answer

The idle is so high about 1500rpm i already clean the trolley how can i adjust the idle please help


Hi Loret,
The idle control is electronically controlled. If the idle speed is too high, its likely that the cold start unit which is fitted to the throttle body is defective and should be replaced....
One thing I've noticed living in a hot climate....Many of our mechanics remove the thermostat believing it serves no function in a hot climate. The thermostat in fact is a critical component in all climates and must be fitted, particularly with fuel petrol injected vehicles. If removed the the result will be incorrect temperature signals being sent to the management system, which in turn could result in the fast idle you are describing. The computer will be told that the coolant is cold and therefore increase the idle speed as if the engine is still cold!
Regards Johngee10

Feb 06, 2011 | 2002 Toyota Corolla

3 Answers

Honda civic 2000- idle speed is high even in park or neutral


Check your coolant level. The Idle air control valve works with coolant in the system and will produce high idle it there is very little coolant. Also check to see if there are any vacuum lines disconnected. They can also cause the high idle.

Jun 06, 2009 | 2000 Honda Civic

1 Answer

Carburator tune up of charadade 1992 sedan. The engine is running too fast while idle at 1200 r.p.m.


Before you start check the status of your choke. One that is stuck on will cause a high idle. If the choke checks out, proceed to the following:


You should have what's called a 2 needle carburetor. A larger screw adjustment for idle, and a smaller for high speed.

Start by adjusting your low speed (idle) needle until you reach the desired idle. I prefer about 850rpms. Do this with the engine running and adequately warmed so that your adjustments are not thrown off by the automatic choke.

Next slowly open up the high speed needle. As you open it your idle speed will gradually increase. Adust it in 1/8 turn increments, pausing after each adjustment to allow the changes to take affect. Keep opening it until you stop increasing your rpms, then take it back 1/8 of a turn.

Next readjust your idle mixture screw so that your idle is back down to 850rpms.

Apr 29, 2009 | 1992 Daihatsu Charade

1 Answer

Engine high rev at stop and slowly goes to idle speed.


I've got Hyundai Lantra 1.6 year 2000. It's take time to start when it's hot. When I start my car it revs at about 2k-3k rpm. It also does it when I come to a stop. When I come to a stop it will stay at a higher rpm than that of idle speed. It drives ok when on freeway but uses more petrol. I have changed the water & petrol pump but no luck

Oct 26, 2008 | 2000 Hyundai Elantra

1 Answer

Idling speed vw golf petrol 1.4 2001


That sounds about right, the idle speed may not even be manually settable due to emissions regulations.
I know for sure you can't adjust the idle mixture anymore; that is determined by sensors and the on-board computer.
There may still be adjustments on some cars but they are often sealed with lead to avoid tinkering.

Aug 07, 2008 | 2001 Volkswagen Golf

2 Answers

Carberator


there is no idle speed adjustment its computer controlled if its ideling to fast there will be a vacume leak somewhere causing the engine to idle high.

May 24, 2008 | 2001 Ford Escape

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