Any first impressions? I suppose you'll notice it most on a hot sunny day.

The metallised foil does interfere all electromagnetic signals. For this reason for example E39 touring was never offered with comfort klima windshield because the GPS receiver is under the front dash.

I did change the oil level sensor a couple years ago because it was throwing a fault code.

Maybe you have a bad oil temp sensor. NewTis shows it as a separate sensor located on the base of the oil filter housing.

Temp on m54 is as mentioned

I am not familiar with the term "impact maintenance".

:rofl::rofl::rofl:

Maintenance reduces sludge. No sludge = no excess heat build up on gaskets. A well cooled and lubricated engine will last thousands of miles. As for other stuff; wear and tear.

Are you yanking our chain? Those who actually aren’t familiar with the phrase that means “hit it with a hammer "

I removed the clutch fan and installed an electric puller fan many years ago. It runs after the engine is shut off to prevent heat soak which is also helpful.