2019 Arteon R-Line - start stop error / P0118 code
Hi all,
So, back in November of 2025 I picked up a used 2019 VW Arteon R-Line.
Love the car but I noticed that the start/stop was very sporadic in terms of working.
Fast forward to yesterday and all of a sudden it's showing Start/Stop error. Then maybe a few minutes after that, the check engine light came on and the codes read as:
P0118 - Engine coolant temperature sensor 1 circuit high.
I've been researching as best I can, and the two most common issues appear to be the battery (which I don't think is the case here) and that ETC sensor is like bad.
I decided to YOLO it and purchased the sensor from partsgeek, but after looking at a bunch of posts and videos that aren't 100% the arteon engine, I'm still not sure where to find this and how to get to it without screwing anything up.
Is this a process that someone without a ton of experience could pull off?
Does anyone have any good advice/instructions/images/ or anything they could share to assist in locating this sensor?
I'll take any advice! Google is confusing me more and more LOL
Thanks everyone!!