Was driving down the road today and noticed the "low oil" light was on. I immediately let off the accelerator and looked at the oil pressure gauge. OP gauge showed 3 bar. Looked back at the light and it flickered and went out. I have never seen this before (in about 10K mi. of ownership). Stopped and checked the oil, it was halfway between full and add. Is the sending unit going or just a loose wire somewhere?

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Muleears
'07 E320 Bluetec 133K my DD
'04 Jaguar XJ8 VDP, 34K
'10 Hyundai Accent 60K Grocery Getter
'02 VW Golf soon to be on the road again
'97 E300 Diesel Son's DD
'61 VERY tolerant wife

Hampton Roads, VA USA

Gone but not forgotten:
'67 250S 95K
'86 300SDL
'87 300D Turbo, 364K! R.I.P.
'98 E300 Turbodiesel, 213K
'02 S420, 164K
'01 Prius 138K

Join the club.

My '86 has a constant light as soon as the engine warms up.

It might go out on a curve or a grade.

It also sits between the marks.

I believe a new sending unit will fix the issue, but, haven't done it as yet.

A new sending unit "might" fix it, but more than likely the circuit board in the cluster has a capacitor that's gone bad. This is a common failure mode for the older vehicles with the low oil level indicator. I fixed mine by soldering in a later model circuit board. This gentleman can fix them and other ailing MB electronic devices. I know and trust him.