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Car Forum / Mercedes-Benz Cars / March 2005

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Oil Light?

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Ben - 09 Mar 2005 17:25 GMT
Lately the oil light has been coming on intermittently in my 91 300CE.  Oil
levels are full.  I got an oil change the other day and immediately
afterward the light came on again.  Pressure is normal, oil levels normal,
everything normal.  The only issue I know of is an oil leak that has been
there since I got the car a year ago.  The leak is not new, but the oil
light coming on all the time is.  Any ideas?
pool man - 09 Mar 2005 17:23 GMT
replace sending unit

the case, minus a few cans!
Martin Joseph - 10 Mar 2005 08:07 GMT
> Lately the oil light has been coming on intermittently in my 91 300CE.  
> Oil levels are full.  I got an oil change the other day and immediately
> afterward the light came on again.  Pressure is normal, oil levels
> normal, everything normal.  The only issue I know of is an oil leak
> that has been there since I got the car a year ago.  The leak is not
> new, but the oil light coming on all the time is.  Any ideas?

If the pressure and volume are both good (ie it has the proper amount
of oil and adequate pressure) then it has to be the sender or a short
in the light itself.

Annoying,  but at least not a major problem.

Marty
jav - 13 Mar 2005 20:42 GMT
The sending unit may be defective.

> Lately the oil light has been coming on intermittently in my 91 300CE.
> Oil levels are full.  I got an oil change the other day and immediately
> afterward the light came on again.  Pressure is normal, oil levels normal,
> everything normal.  The only issue I know of is an oil leak that has been
> there since I got the car a year ago.  The leak is not new, but the oil
> light coming on all the time is.  Any ideas?
Richard Sexton - 14 Mar 2005 01:22 GMT
More likely the wire to the sender. It work hardens then
breaks strand by stand making only intermittent contact
when all the strands have broken.

I fixed bith my temp and press gauge last year this way:

http://electric.articles.mbz.org/126connectors/

>The sending unit may be defective.
>
[quoted text clipped - 4 lines]
>> there since I got the car a year ago.  The leak is not new, but the oil
>> light coming on all the time is.  Any ideas?

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            Need Mercedes parts ? - http://parts.mbz.org
http://www.mbz.org   | Mercedes Mailing lists: http://lists.mbz.org
633CSi 250SE/C 300SD | Killies, killi.net, Crypts, aquaria.net
1970 280SE, 72 280SE | Old wristwatches http://watches.list.mbz.org

Martin Joseph - 14 Mar 2005 09:09 GMT
> More likely the wire to the sender. It work hardens then
> breaks strand by stand making only intermittent contact
[quoted text clipped - 3 lines]
>
> http://electric.articles.mbz.org/126connectors/

Very cool, but you have a typo where you say

"The only trouble I've ever had with one of these connectors wasn't
really the connector it was the wite."
Richard Sexton - 14 Mar 2005 17:53 GMT
>> More likely the wire to the sender. It work hardens then
>> breaks strand by stand making only intermittent contact
[quoted text clipped - 8 lines]
>"The only trouble I've ever had with one of these connectors wasn't
>really the connector it was the wite."

A typo? That's so unlike me. Fixed. (I fixed the other 7 typos too).

Signature

            Need Mercedes parts ? - http://parts.mbz.org
http://www.mbz.org   | Mercedes Mailing lists: http://lists.mbz.org
633CSi 250SE/C 300SD | Killies, killi.net, Crypts, aquaria.net
1970 280SE, 72 280SE | Old wristwatches http://watches.list.mbz.org

 
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