[PhillyBama]

Are there two sensors or just one giving two readings. Conflicting stories with service guy. 2004 645 Cic bought new with 139,000 miles.

 

[MANDD]

Are there two sensors or just one giving two readings. Conflicting stories with service guy. 2004 645 Cic bought new with 139,000 miles.

1 for oil pressure on the right front cylinder head.

1 combined sensor for oil level and temperature, this is in the oil pan.

 

[HerbP]

The temp is read off the sensor on the bottom of the oil pan. These sensors don't fail often, but a bad rebuilt alternator will make the sensor look bad. Has an alternator been installed since this started?

 

[Dover]

Dodgy alternator did this for me as HerbP said above.

 

[PhillyBama]

The temp is read off the sensor on the bottom of the oil pan. These sensors don't fail often, but a bad rebuilt alternator will make the sensor look bad. Has an alternator been installed since this started?

Yes. The alternator was replaced and the oil temp gauge in my tachometer cluster stopped working. The mechanic ordered part from Germany. Will that work? Thank you.

 

[HerbP]

If the alternator is not a new Valeo, I would start looking at the alternator. Rebuilt alternators will cause this problem. I would not install the sensor until you confirm the alternator is not rebuilt, or new. Usually rebuilt alternators will not install the proper voltage regulator, & this happens.

 

[WHOOSH22]

Herb is right, I had a refurbished alternator fitted and had the same issue along with IBS error code need to ensure alternator fitted has the correct regulator fitted.