Please Help !!
I have a 2002 (December) A4 1.8t. The problem I am having is that the 'oil sensor' warning on the display refuses to disapear despite replacing the oil level sensor. (This is the oil can symbol with words sensor next to it and is yellow not red)
The sensor is the type that bolts to the bottom of the sump. Yesterday I replaced the sensor and then had my local garage clear the fault code, this lasted about 20 seconds when the car was idling and the warning message came on again.
In an effort to rule out a faulty new sensor I have fitted another new sensor today but still the message appears.
I will only get chance to run another diagnostic check tomorrow to clear the message, but shouldn't it revert to 'OK' as soon as the faulty component is replaced or am I correct to assume that it will need the code clearing anyway?
If the fault appears again (which I suspect it will)I am at a loss. Any suggestions would be appreciated.
(I have obviously checked the oil level and looked very closely at the wiring for any signs of damage and checked the relevany fuse).
I am not clear on the frequency of oil changes but the history I have got indicates every 10K.
However, there is no indication of a build up around the sensor. I do know that the vehicle has always used fully synthetic oil.
I would also think that the oil message that would appear if their was a problemn with the oil returning to the pan would be 'Oil Min'?
I agree with your theory. I believe a sludge problem would produce a pressure warning, or possibly a low oil level warning.
I have checked the wiring and shroud and there are no visible signs of damage.
Just a quick update.
Ran another diagnostic check that raised a fault with the coolant gauge circuit.
Replaced temp sensor today and oil sensor warning disappeared. Fantastic!!
Was this the engine coolant temp sensor that was replaced? i have the same exact problem and replaced the oil sensor that was mentioned previously in this same thread and i still get that damn yellow oil sensor light. this is the only thread that ive seen so far that has actually resolved this problem. gonna take a look at it today and see if i could get rid of this damn light!!
im not sure if you posted in the right thread. Still looking for the answer to my question. Yellow "oil can" sensor still on. changed oil, filter, sensor, and even saw that the wires were a little damaged, but that was fixed too and still senor light on. i reset the light and after driving for about 20 seconds i got the light right back. i saw that someone had replaced a sensor in the car but didnt specify which one it was. Anyone have any ideas?
So after a month of troubleshooting this Yellow "oil can" sensor indicator. i change the sensor (150 bucks), wiring (10 bucks), coolant temp sensor (25 bucks), a couple vacuum lines (3 bucks),.... knowing that after all that troubleshooting it was a burnt 10amp fuse in the fuse box that i found myself, thinking that a dealership would know better... priceless.
And take note that its been to two Audi dealerships…
Lesson learned, always check the small things before you start getting your hands dirty. Props to this site!!!
Pull the cover off and look at the diagram on the back of the cover. Cover is located on the left side of the dash accessible only with the door open.
I did. I checked all fuses that are 10a. They were all good. I think my sensor could be done. When I did my oil change last weekend I did notice that the wire on the sensor was a bit beat. I touched it to see if it was good and I ripped off. I taped it back together though. Could this possibly be the issue?