On Thu, 10 Aug 2017 18:42:32 -0400 (EDT) Mitch Haley via Mercedes
> You unplugged the sending unit when you changed the filter?
No, this engine has an oil filter cannister like an OM617. It's at the
rear of the engine and has a lid with a central rod which lifts off.
I have moved the connector for the oil pressure sensor at the base of the
filter and wiggled the harness which, I think, contains the wire from the
sensor to the gauge. That seems to help a little, with the gauge
sometimes bouncing from zero to pegged.
So, I think, something is wrong with the wire between the sensor and the
gauge. How that went wrong and how I might fix it are then the questions.
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