What is at issue with the oil light on our 2011 Passat CC which is is blinking?

SOURCE: 1992 VW Polo 1.3L Coupe: warning light mystery

Polo Coupe 1043,1992, Will not start, can be bumped started, sometimes!!, theres a strange clicking noise from under the air box, when the ignition is on and sometimes the oil pressure light comes on when the car gets upto temperature, then I lose all power and then the engine cuts out. I've recently changed the dizzy cap, rotor arm and battery, all the leads are new ish along with the spark plugs. The previous owner has changed the head and done all that, leaving much of the engine loom unlagged and bare. Could this cause a problem on some of the electrical systems?

SOURCE: Oil Light comes on VW passat

It sound as it your oil pressure senser or the oil pump needs replacing.

SOURCE: i need to know where is the dip stick to check the

There is no automatic transmission dip stick on your car. There is a long procedure to check and fill and you will need special fluid from VW. Better left to the dealer. If you want the procedure let me know.

Dave

SOURCE: Oil Indicator light on Volkswagen Passat 1.8L Turbo

Hi. there are many issues that can cause this type of situation. the oil pressure sending unit may be malfunctioning. there could be a faulty module or the wires and connectors could also be lose or faulty as well. you could also have a clogged oil filter but, that usually isn't the main issue here. the most common problem here would be a bad oil screen in the pan or a faulty oil pump. you will find the problem in these areas above.

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SOURCE: 2003 VW Passat "Oil Press, Turn Off Engine" and "STOP" Light

I would check the oil pressure sensor and the oil pump itself. You can take the sensor out and use a mechanical gauge to check the oil pressure. If the oil pressure is within specs, you need a new sensor, if not, you need a new pump.