Hello,

Yes this car is a 1989 300E...

I just want to know if the indicator should read between the min and max marks...

I check it after I go for a drive...
the engine temp reads 80C
the car is parked on level ground
the engine running in park

I am reluctant to buy an infra red device just to use one time....

Help me please!!! How do you all check it without the temp reading devices?

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2006 BMW M5 "Heidi" @ 109,000 miles
2005 MBZ C55 AMG "Lorelai" @ 165,000 miles
1991 MBZ 300E "Benzachino II" @ 165,000 miles
1990 MBZ 500SL "Shoshanna" @ 118,000 miles

(On the hunt for a good used M103 engine as of 6/10/23, PM me if you have one to sell!)