[sirch]

My local dealer stated my ambient temp sensor had to be replaced for around $300. I elected to try to teach my son how to replace the sensor, but the dealership removed the sensor, sensor wire, and, headlight access panel from the wheel well. I’m have tried to find the location to put in the new sensor wire with no success. I have tried to look it up in the location in part catalog and use the dealership parts counter with no success. The dealship states it’s behind the headlight? Does anyone have any idea where sensor wire harness is located under the hood before I have to remove the bumper and headlight.

[Billfitz]

https://www.newtis.info/tisv2/a/en/f...puter/Gxhv8dwo

Key instruction: Partially remove front wheel arch cover

[MONSTAR]

That picture is hard to get an idea from.

If you lay on your back at the front of the car, it will be in the plastic cover in front of your wheel. You can access it through that wheel arch access port or you can remove the bottom trim piece that it is actually screwed into.

[sirch]

Originally Posted by Billfitz

https://www.newtis.info/tisv2/a/en/f...puter/Gxhv8dwo

Key instruction: Partially remove front wheel arch cover

Thanks for the picture, however, the wire and sensor are both missing and I can’t tell where the wire for the sensor plugs into the car. I have tried realoem for finding the location with no luck as well.

[Billfitz]

My Bentley manual only says that the temperature sensor is hard wired to the instrument cluster.

[Donaldo]

Which side this is at - driver or passenger side in 2015 320i?

Also the wheel arch access port - thats the small plastic piece on top of the wheel? how do you take that out ?

Thanks in advance