[W126 Coupe] Re:HI IDLE

[Matt Petersen]

My idle was at about 1100/1200 until I swapped out the Idle Control
Valve. Some people have success with cleaning it but a lot don't.

When changing the valve out often the rubber mounting post that the
clamp is bolted to will separate. Additionally one of my air hoses was
cracked and the sleeve that sits inside the clamp was missing.

A VDO valve can be bought which is significantly cheaper than the
factory MB part and it is identical.

Matt.

-----Original Message-----
From: mbcoupes-admin@mbcoupes.com [mailto:mbcoupes-admin@mbcoupes.com]
On Behalf Of Sharan Bains
Sent: Saturday, 8 January 2005 2:19 a.m.
To: mbcoupes@mbcoupes.com
Subject: RE: [W126 Coupe] Re:HI IDLE


The idle speed is all controlled electronically - the mixture screw will
not 
impact the idle speed.

Have you checked the bypass valve on the idle air valve - small plastic
pipe 
connecting the two main hoses ?

If that's leaky or come loose, idle will jump.

talbir



>From: "Dan Gardner" <cruftsk9@tpg.com.au>
>Reply-To: mbcoupes@mbcoupes.com
>To: <mbcoupes@mbcoupes.com>
>Subject: [W126 Coupe] Re:HI IDLE
>Date: Fri, 7 Jan 2005 20:24:10 +0800
>
>As this is my first post for the year"Happy New Year To Everyone"
>
>Since I have got my car running again I have noticed the idle speed has
>increase from 750rpm to 1200rpm,I have cleaned the idle air valve with
carb 
>cleaner and removed a lot of black carbon,having viewed the archives It

>would appear to have developed a vacuum leak or the  idle air valve has

>changed since cleaning.
>
>    I might use hose clamps on the push-on hoses just to make sure,the
>question is is it OK to adjust the idle screw or does that only change 
>mixture,the cd-rom does'nt really specify.
>
>
>

>  Kind Regards  Dan Gardner    1986 560 SEC euro 220kw(300HP)
>
>
>
>
>--
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>
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