engine temp vs. ACC sensor

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engine temp vs. ACC sensor

10-01-2009, 01:46 AM

JimF

'94 S500: only 793 sold!

Join Date: Mar 2001

Location: San Diego, CA

Posts: 1,933

Is the A/C on? If so, then it's normal since a burst of high pressure causes the second part of the ckt electronics (pressure switch on the rcvr-dryer) to turn the aux fan on to cool the evaporator even though engine temp is normal.

My 190E did that alot!

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