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S-Class (W140) 1991-1999: 300 SD, S 350TD, 300 SE 2.8, S280, 300 SE 3.2, 300 SEL 3.2, S320, S320L, 400 SE, S420, 400 SEL, S420L, 500 SE, S500, 500 SEL, S500L, 600 SE, S600, 600 SEL, S600L, 500 SEC, 600 SEC

engine temperature

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Old Sep 8, 2014 | 03:40 PM
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PJmak
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05 c55 silver, 98 Imperial Red C43
engine temperature
Whats up everyone.

My brother has a 1995 s500 and its low mileage.....around 53k but lately his engine temperature has been climbing up to 110 degrees. It seems its only when the ac is on. Is this normal or should he be concerned?

Thanks in advance
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Old Sep 9, 2014 | 08:28 AM
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From: tennessee
s320
Not good,maybe fan clutch,and electric fans not working.
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Old Sep 9, 2014 | 11:54 AM
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05 c55 silver, 98 Imperial Red C43
These are big and old engines and id imagine they run a little hotter then lets say a newer engine like a m113 or m112 no?

Ill have him check those btw...thanks
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Old Sep 9, 2014 | 12:32 PM
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s320
I got a special thermostat to keep mine at 78C
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