Oile lamp

Hello I am the happy owner of a MB W124 300TD turbo 1990 with 300.000 km (18750 miles) on the clock.
Today when running full speed 190 km/h (115 MPH) the oil level lamp was
flashing 3-4 times, but only for a sec.
I have just checked the oil level, and it was at the max. mark.
What can be wrong ??
Regards
Heine Holten Denmark
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No doubt quite alarming when driving at that speed. It could be that at such a high engine speed the oil apparent to the sensor level is a bit low, perhaps due to the amount of oil being pumped up to the cam etc. . Oil needs a moment to drain back down to the sump.
Be sure the oil is not overfilled - above the top mark - for overfilling raises the level to the point when the spinning crankshaft hits the oil and that causes it to foam and be aerated with small bubbles.
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Ok an thanks. Can the outsidetemp has anything to say, the temp. was - 5 deg. and I use 10W40 oil ?
Regards
Heine Holten
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Not if the engine's 80 degree C. thermostat is working correctly.
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ok, just checked the olilevel, and it is aobut 1,5 cm over topmark. I think there is 0,75 L to much oil in the energine, can that really cause the trouble ?
I will take 1 L oil out later today.
Regards
Heine Holten

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I have the same model at almost the same mileage and drive it often at that speed too :)
However, usually after draining the oil for oil-change I refill the engine with 7.0 L oil instead of the 7.5 L suggested by the manual. This brings the oil level between the MIN and MAX marks, which IMHO is better than to fill it to the MAX. I use a synthetic 0W40.

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