r/Arteon

I keep it in comfort mode, but it seem to keep resetting to normal despite saying it’s still in comfort. When I get back in, it feels rougher than when I left it and softens up when I re-select comfort.

I just got a 2020 Arteon 2.0T with pretty low miles.

I dont drive aggressive but despite that im only avaraging 16mpg. Is this ballpark what everyone else is getting?

Got chatting with a coworker in the parking lot yesterday about my 2020 Arteon R-Line (2.0 TSI) and he was shocked I’m still running it stock. Now I can’t stop thinking about getting a bit more punch without nuking reliability or MPG.

I’ve been reading up on piggyback/chip modules instead of a full flash tune, mainly because I like the idea of being able to unplug it before dealer visits and keep factory stuff “safe”. I landed on a few sites, www.gantuning.com popped up while I was doomscrolling at like 1am, plus a couple of other similar ones that claim more power and slightly better fuel use, app control, etc.

I might be missing something here, but it almost sounds too good to be true compared to a proper ECU tune.

Anyone here actually running a plug-and-play tuning box on their Arteon long term? How’s the throttle response, any weirdness with DSG, check engine lights, warranty drama, or real-world MPG changes? And if you tried one and went back to stock or a flash tune, why?

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!!

Not really interested in black. But machined like stock is fine. What sizes did you go with for more sidewall protection?

Yellow SOS call warning light on dashboard after changing the battery. It won't go off now... Has anyone experienced this? Thanks

FYI the Arteon and apparently all newer Volkswagens have soy based insulation that rodents love

One day I got in my car, turned it on, and the dashboard lit up like a Christmas tree - the power steering was out along with everything else. Had it towed to Volkswagen and they shrugged it off like I should have known it was rodent damage..

I had never heard of the issue before, and everyone I talk to either knows all about it or has never heard of it, but if you google it you can get all the details. Apparently a bunch of the wiring comes from Chinese companies that use cheap subsidized American soy to make the insulation, and rodents love the taste. There are class action lawsuits against some automakers but I don't think they're going to go anywhere.

Had to put in a comprehensive claim, almost 8K of repairs so far and I still don't have the car back yet...

Anyways, check under your hood, consider getting some peppermint or pepper spray, there are a bunch of home remedies, not sure what works and what doesn't, but again just read about it, it can happen quick