Don't know the spec right off hand (it's in the manuals), but is it
usually in the hunderds of ohms range at room temperature and should
change in response to temperature changes. The interior sensors on
the W124 are negative temp coeffident -- the lower the temp, the
higher the resistance, but I don't know about the the W126.
A thermistor that "swtiches" rather than continuously changing or has
a bad connection will do the same thing.
So will bad connections at the pushbutton unit, though.
Peter
On May 1, 2009, at 7:22 PM, Luther wrote:
Do you know what the resistance should be? Would I be checking
this in the dome light assembly?
Luther
Peter Frederick wrote:
Check the resistance of the thermistor - -they have been known to
go bad.
Peter
--
Luther KB5QHU Alma, Ark
'87 300SDL (281,xxx mi)
'85 Ford F250 6.9 diesel (x59,xxx mi) BioBeast
'82 300CD (183 kmi)
'82 300D (74 kmi) getting donor engine-sold
'85 300D (280,176) parts car sans engine "The Accordion"
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