Nooil dipstick under the hood. After many attempts of trying to fix the problem, I eventually realized the hood latch was bad. The car only measures the oil level when the hood is opened. Since it didn't know the hood was ever opening, it never re-checked the oil level sensor and kept on with the low oil warning. Oilis at the max level on display, and with a dipstick. My check engine light came on around the same time. Codes are P2279 intake air sys leak and P2187 sys too lean at idle bank 1. Its a 2010 A5 Cab Quattro with 88,000 miles. engine was rebuilt at 50,000 miles due to oil consumption. Hasn't lost a drop of oil since. 18 Location. Hampshire. Jan 13, 2014. #6. If you have VCDS scroll through the engine measuring blocks until you find the one for oil px. Take it for a drive if you're happy to and log that measuring block. It will show if there is actual loss of oil pressure. It does sound as though something is blocked though. When496 is 0, high oil pressure is commanded and 497 should show 3 (both switches active). When 496 is 1, low oil pressure is commanded and 497 should show 1 (just the low pressure switch active). The low pressure switch toggle point is .7 bar +-.15 bar, and the high pressure switch toggle point is 2.55 bar +- .4 bar. Tocheck for a bad sensor the first thing to do is run block 032 on the VAG com. If the sensors are bad, the readings will both be 0%, replace the Front O2 sensor. If the sensor is bad, it will also respond slowly, or reach a peak. Logging block 031 will show the lambda reading from the O2 sensor as well as the requested lambda from the ECU. AudiA4 2013 2.0 TDI 177HP, Low oil pressure. This problem seems to be quite common for this engine. The most common case is after the oil temperature reaches above 105 C 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 2009Audi A4 2.0 T (non-Quattro) Low Oil pressure light. this would be hilarious if you just didnt cap it. kinda like flipping your house inside out for your keys and its been in your pocket all along. I replaced the 2 oil pressure sensors/switches to EngineOil Level Sensor. Audi A4. Genuine Audi Part - 1J0907660F (1J0-907-660-F, 1J0907660C) Fits A4 (2003 - 2006) Engine Oil Level Sensor - Repair or Replace If your engine oil level sensor has failed, it will usually provide a "false positive," meaning it will incorrectly report that your engine oil is low even if it isn’t. This can 3yIdi.

audi a4 oil pressure sensor problems