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2009 Audi A4 oil pressure light and check engine light comes on after driving car for about ten minutes

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Check the oil now before it is too late and have the engine serviced.

Posted on Apr 18, 2017

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THE TEAPOT SIGN KEPTS ON COMING ON THE PICTURE LOOKS LIKE ITS DRIPPING. WE HAVE AUDI A42002


that is the low oil pressure light. Do not drive the vehicle with this light on. Have you checked the oil level? What engine do you have?

Aug 05, 2011 | 2006 Audi A4

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My Audi A4 2009 makes a rattling noise on cold starts which resolves in less than 30 seconds. Dealer says its an air pump. This doesn't seem correct. The noise comes from the front of the care. Does not...


READ THIS (happy ending so far...):
audi a4 2L turbo quattro, manual transmission with 98,000 KM. Perfect conditions, no oil leaks whatsoever.

Left the car off for two weeks in very cold weather (-10C down to -25C). When I restarted, it started immediately but with heavy rattling noise due to camshaft adjuster not getting enough oil pressure. After 3 minutes of warming up (outside temp.: -12C) at very low rpm (below 2,000rpm), I start moving the car. Still hearing heavy rattle noise. As soon as I pass 2,000 rpm, I get a scary red warning, low oil pressure. Turn off the engine immediately. In 1 minute, I re-start the car and the engine lights check ok, so I drive in first gear super slow (1,200rpm) hearing the same rattling noise. After another minute, finally the noise all the sudden disappears and the car starts running just fine.

Called Audi dealer and they told me that in extreme weather conditions, I should warm the engine for 10-15 minutes if necessary before start moving.
Take away: luckily, I didn't screw up the engine since I was using it at extremely low rpm (easy to do with clutch and manual transmission) until the oil reached full pressure. I am pretty sure now that the problem was leaving the car off for such a long time in freezing weather. All the oil flows back to the bottom, and when I restarted it, the cold oil with high viscosity took a long time to reach all the parts of the engine, specially the camshaft adjusters that are actuated by using oil pressure. Next day, the car started at -9C perfectly without making any noise (as usual). Basically, the longer you leave your audi in cold weather, the longer you might hear the rattling noise until the oil reach full pressure inside the engine. My car took 6 minutes to fix it after couple of weeks in cold weather. This makes sense to me; in fact, in the past I only heard the rattling noise after leaving the car off for a couple of days in the winter.
So far, this has had an happy ending....

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Dec 19, 2010 | 2009 Audi A4

2 Answers

Oil pressure light went on on my 2000 audi a4 1,8t. What should i do?


could be sender or pump. do not run the engine until you're sure you have a good pump. Does it blink on and off--coming on mainly at idle? This would be normal for an old engine. If it stays on and the pump is bad, you will ruin your engine. You can try replacing the sending uniot, as that is cheap compared to the pump, but don't run it long to check new sender. If new sender stays red, shut down and replace pump.

Sep 03, 2010 | 2000 Audi A4

1 Answer

2000 Audi A4 quattro with abrupt gear shifting & low oil pressure


I hope that you had the proper weight oil installed, at your oil change. If your oil is up to the proper level, and it's rattling ,this is VERY bad. White smoke usually means steam in the exhaust, and that means a blown head gasket. Check your coolant level. I wouldn't drive it anymore......until someone knowledgeable can diagnose it!!!!!

May 30, 2009 | 2000 Audi A4

3 Answers

"oil" displayed on start up


most cars have a self diagnosis proceedure during and just after startup. this is not a fault unless it appears while going round corners or just generally driving around. you have had the sense to check your levels and pressures then i wouldnt worry too much about it unless it stays on or is as i say on while driving.

Feb 26, 2009 | 1996 Audi A4

4 Answers

2002 audi a4 oil light issue


There are potentially two different problems here.
1. A fault with the actual oil pressure.
2. An electrical fault with the switching circuit.

If you are confident the problem is not with the oil pressure, disconnect the wiring from the switch for a period of time. If the light still comes on periodically the fault must be with the wiring circuit shorting to earth. There will be no fire hazard to this approach as the voltage will drop over dash lamp.

However if the problem is with the oil supply system, the danger with this approach is you are potentially unaware of a serious problem

Such as the oil filter collapsed or the oil pressure release spring could be jammed open/closed which would cause the engine to not have the correct operating pressure.

Feb 22, 2009 | 2002 Audi A4

2 Answers

2002 audi a4 oil pressure light issue


THOSE NUMBERS ARE VERY GOOD, THE PROBLEM MOST LIKELY IS A DEFECTIVE OIL PRESSURE SENDING UNIT, HAVE REPLACED 100'S OVER THE YEARS FOR THIS SAME ISSUE, GREAT THAT U CHECKED THE PRESSURE THOUGH, IF THE LIGHT WAS INDICATING ACTUAL LOW PRESS U COULD HAVE WASTED THE BEARINGS IN THE ENGINE.

Feb 14, 2009 | 2002 Audi A4

1 Answer

2000 audi a4 2.8 quattro/ oil lamp light on center of dash


have the oil pressure checked as soon as you can... also have them check the wiring for the oil sending unit

Robert

Please rate this solution thanks

Jan 26, 2009 | 2000 Audi A4

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