We just purchased a 2005 with only 17K miles. The low oil lamp came on, so I got an oil change but the light still comes on. I called the dealer and they told me how to re-set the service light Thanks to the information on this site, I realize that if I recheck the oil and it's fine, it could be a faulty sensor. Any advise on how or where to replace that?

 

First off, Welcome Swince, hope the re-set works for you sometimes you'll get an oil light if it's a little too low or too high ( overfill ) here's some info on the oil sensor that JerryG posted just in case you need it.

I've seen several posts where owners have had bad oil level sensors, but I don't think anyone has posted their experience with changing it themselves.
To start, my oil light came on. I checked the oil level and it registered "OK". I never checked the dealer price to replace the oil level sensor, but the part price was $223. I opted to go with Autozone for $158. I down loaded the service manual and it had a nice picture of how the sensor is located inside the lower oil pan. The whole process of replacing this sensor was not hard.
1. Jack up car and remove bottom cover.
2. Drain oil. I let the car sit overnight to make sure that it was drained.
3. Remove the harness from the sensor. The service manual shows a picture, but I couldn't find it until I had removed the oil pan and saw where the sensor was located. The harness is located on the passenger side just above the oil pan. I used a small pair of pliers to remove the harness.
4. Remove the bolts from the two coolant lines connected to the oil pan, then remove all of the oil pan bolts. These are star headed bolts and you will need a #10 star socket.
5. Remove the oil pan. This was the hardest part for me. The pan is held together with a sealant. There are two flanges located on the drivers side where the pan can be pried loose.
6. Once the pan was off, I used a plastic scraper to remove the old sealant. I sprayed the pan with brake cleaner to clean and it also helped in removing the old sealant. Spraying a rag with the cleaner also worked on cleaning the upper pan.
7. The sensor is two parts connected by hose. There are two bolts for each part. These bolts were also a star bolt needing the same size socket as the pan.
8. After removing these two bolts the part that connects to the harness had to be pried out with a screwdriver as it has an o ring.
9. When replacing the new sensor, rub a little oil on the o ring. I went ahead and replaced the harness at this point. Be carefull of how the harness is inserted. There are three pins inside the sensor that the harness must be aligned with.
10. For the sealant on the oil pan, I used Permatex black gasket maker and followed the instructions on the package. I laid out a little over a 1/8" bead all aroung the pan. Once I had the pan back in place, I just snugged the bolts until the sealant started to squeeze out and let dry for an hour. After an hour, I tighted about another half turn. I let this dry overnight and then tightened to 10 ft. lbs.
11. Replaced oil and no more light.

As I said, not a really hard job and I saved a few bucks. Best part is I didn't have to leave the car with the dealer.

 

Check the dipstick. Who knows if the place you had your oil change at actually checked the dipstick, let alone realizes that the car needs 8 quarts. Most XF folks change their own oil and do their own repairs. I don't recall anyone sharing a positive experience with a dealer.

 

Thank you. I will check it.

 

Congrats on your recent purchase & welcome to our Forum.

 

Good advice. Many of the typical "quickie" oil change shops won't know that the Crossfire takes 8 quarts (or 8 liters). Let us know what you found when you checked the dipstick.

 

The oil is past the top arrow on the dipstick. The sensor does not always stay on, it goes on and off. If it continues, we will have it replaced.

 

Before you replace the sensor, you might want to try sucking about 1/2 quart of oil out.
The sensor measures both low and high levels.

 

Congrats for your purchase. The false oil level light can be common, always trust your dipstick

 

Hello and welcome

 

We have an 05 coupe ,just did an oil change although it calls for 8.5. I went a little bit over
and a “HI” light appeared .. drained out a little bit all set now. Error light stays off 👍

 

Always add 8 and then do a little at a time, checking the dip stick.

 

Most of us in the USA add only 8 quarts during an oil change. Like you, the 1st oil change I performed I added as close to 8 liters (8.45 quarts) as I could measure. I then took the car to a Fontana ToD weekend event. All weekend, driving those twisties, the HI Level indicator kept coming on. When I got home, I siphoned out about a 1/2 quart & no more Hi Level warnings. Since then, I only add 8 quarts during an oil change.