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Q: Over heating after 30 minutes drive on 1990 Mercedes-Benz 300E

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Needle goes up to red after driving in moderate traffic for 30 minutes. Engine does not let off steam when this happens.
I top up with coolant, about two cups after 30 minutes drive on mornings and same on evenings.Seems as though it is getting worse since the warning light now comes on.
No car image 94a1663db56199c5353592009e34aaa51078a2469bed068bb8d6f0ba43accf97
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you cannot continue driving the car when it overheats; you will permanently damage the engine. strongly suggest towing the car to a local MB specialty shop and let them diagnose this problem for you.
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