[W126 Coupe] Air temperature

[Nils-Helge Boge]

Thanks Dick
I will try your fault finding advice. A  ohm chart will be must helpful if 
anyone have.
Nils-Helge



>From: Dick Spellman <spell.yy at verizon.net>

>Reply-To: Mercedes Coupes Mailing Lists <mbcoupes at mbcoupes.com>

>To: Mercedes Coupes Mailing Lists <mbcoupes at mbcoupes.com>

>Subject: Re: [W126 Coupe] Air temperature

>Date: Mon, 19 Mar 2007 19:15:37 -0400

>

>Nils-Helge Boge wrote:

>>Hi

>>Temperature reading in the instrument panel on my 560sec 87mod shows 

>>approxemently 37degC at 0degCel . Is the reason for the problem the 

>>sensor?

>>

>>Reagard

>>Nils-Helge

>>

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>>

>>

>Hi Nils-Helge:

>

>I'm going to suggest you unplug the bumper sensor from the display where it 

>connects under the fusebox.  Then take a resistance reading to see if the 

>sensor has gone bad.  While under the fuse holder tray, check for any burnt 

>wires on that probe circuit just in case in came into contact with a hot 

>fuse base and melted a bit.  Not likely but, check anyway.  Problem is I do 

>not know the equivalent values in the cd manual that relate ohms to actual 

>ambient air temp to confirm that probe is good or no good.  Anyone got the 

>chart handy to post here?

>

>Dick

>

>The MB Coupes Website!

>W126 SEC Mailing List

>Postings remain property of MB Coupes, L.L.C.


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