AudiA4 - Low Oil Pressure Warning Light. Hello everyone! 2012 Audi A4 2.0T with 68K miles. Ran into this light 2 times over two years but it happened after a 3+ hour trip and in idle after trip ended. Never thought anything of it and figured it was due to the high usage. I had an oil change just now. 1 mile away the light turned on and would Atthe opposite end of the spectrum, low oil/add oil message is common to nearly all Audi owners. It is not a crisis type of warning. You could also have a failed oil Wednesday4th January 2012. Hi Guys. Just got this car in,2005 audi a4 2.0tdi ,Customer was driving down motorway when red warning light oil pressure low came on,he stopped,checked it for oil and

AsGareth mentioned earlier on the post are these sensors programming-in parts ? The oil pressure was tested with a gauge & computer tool and was confirmed OK. Could this be a mechanical fault like engine wear due to running with low oil pressure, oil pump or / and the oil pressure control valve N428 ?

Perhapsyou actually have a low oil pressure problem : worn oil pump, or worn crank, connecting rod, or camshaft bearings. Put a mechanical oil pressure gauge onto the switch port, and see what you Second just a bad oil pressure switch (aka pressure sensor, aka pressure sender). DO NOT ASSUME a sensor issue. The overwhelmingly common problem with the 1.8T is a clogged pickup screen. The correct response to this problem is to get the oil pressure checked (as in with a gauge) and compared against specification and known Removethe sender from the block with a socket. Attach the oil pressure gauge. Check the oil level and top it off if needed. Run the engine at idle for five minutes, allowing it to reach normal operating 7TcRD.
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    • audi a4 oil pressure sensor problems