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Old 11-12-2003, 07:53 AM
y2kimmel y2kimmel is offline
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Join Date: May 2003
Location: DC Metro Area
Posts: 365
Check thermostat

I'd check (replace actually) your thermostat first. At 124k miles - it wouldn't hurt to change it. It could not be opening fully - causing your woes. This shouldn't be that expensive.

If this has no effect - Thoroughly clean the cooling fins of your radiator.

If this has no effect - you may want to have your cooling system drained, flushed with a citrus "decalcifying" solution (MB makes such a product, I believe) and fill with proper coolant (the red MB stuff - NOT the green stuff).

Your coolant temp sensor sounds like it's working fine - as it is activating the fans when they are supposed to come on.

Let us know how you do.

1995 E420 72k
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