w213e350

My car’s dashboard shows the engine oil temperature is near 110 degrees Celsius. I’m curious if other W213 E350 23y owners experience the same

aks_19_ak

My usual ambient driving temps are usually between 18-25’C. Driving at max 100km/h. Oil temp never exceeds 98’C. On a 40’C day once last summer it went up to 105’C.

However one time I did a 700km drive (one way) at ambient 36’C. It’s a gentle gradient downhill most of the way and I was opening up the throttle and driving at 130km/h often. I noticed then that my oil temp was up at a sustained 106’C then, sometimes hitting 107’C.

If my oil temp is at 105’C regularly then I’d switch to 5000km oil change intervals. Also I read somewhere that the oil temp sensor is at the oil pan at the bottom of the engine, so actual oil temps if they’re coming from the turbocharger, or at the cylinder heads, and cams may be much higher. Assuming your sensor is fine and calibrated, your oil is going to wear out quicker at higher temps, so frequent oil changes are a good idea.

Which begs the question, why is your engine running hot? Sustained heat is never a good thing.

JettaRed

iTrader: (1)

Mine normally the same at 98°C, but will occasionally hit 100°C. But I have different engines.