Check your fuses for the light problem. fuse #12 is for the stop lamp, turn sig lamp, instrument cluster, cruise control. the fuse may look good, but the aluminum gets corroded and won`t make a good electrical contact. replace it with a new one, and ther is some that are copper.

Do you have pressure when the eng speed is increased? each bar on the gauge is 15lbs.
The idle speed should be around 700rpm, maybe too low and with a worn engine or oil pump, it just doesn`t keep the pressure up. even if you have one bar on the gauge you are good. you must have some pressure at idle or there will be bad noises from under the hood. I think there is a pressure relieve valve in the oil filter housing, and it could be stuck open.

someone with more knowledge will chime in.

The leak at the Oil Cooler is most likely a hose. does it leak at the crimp? you might have to clean the area off with a pressure washer and check it. If the hose is leaking, replace it soon, if it blows, the oil will pump out is short order.
There is no replacement seal where the metal end screws onto the Cooler.

Charlie

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there were three HP ratings on the OM616...

1) Not much power
2) Even less power
3) Not nearly enough power!! 240D w/auto

Anyone that thinks a 240D is slow drives too fast.

80 240D Naturally Exasperated, 4-Spd 388k DD 150mph spedo 3:58 Diff

We are advised to NOT judge ALL Muslims by the actions of a few lunatics, but we are encouraged to judge ALL gun owners by the actions of a few lunatics. Funny how that works