94 W140
The other morning shortly after I left may gararge the Radiator warning light lit up on the dash for about a minute and then went out. The temp was normal and it came on again for a few seconds and I proceeded onto the highway the car drove fine normal temp and the light didn't come on again. At work I check and the resevoir was full. I checked the next morning and it was ok. There are no leaks and my car runs fine.
What could be causing this?

air in the system perhaps? Have you had the cooling system open recently? Or it could be just a bad sensor.

This happened to me a few weeks ago as well... I just put a bit more water in the tank.. I think the sensor must be pretty high in the tank.

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1989 300ce 129k
( facelifted front,updated tail lights, lowered suspension,bilstein sports, lorinser front spoiler, MOMO steering wheel, remus exhaust,stainless steel brake lines). (Gone)

1997 s320 154k (what a ride). Sold with 179k miles. Replaced with Hyundai Equus

1994 e320 Cabriolet 108k



1972 280se 4.5 153k Owned for 12 yrs, sorry I sold it


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