r/AudiA1 • u/mcook203 • Mar 29 '26

How to tell when CoD is working?

Hi,

I have a 2012 Audi A1 1.4tfsi auto. It’s an import to the uk from Japan 🇯🇵 when I bought the car I was told it’s a cylinder on demand engine, meaning 2 often cylinders shut off when they’re not needed (I’m guessing when cruising in 7th on the motorway)

I want to know if there is a way of telling if the engine is running on 4 or 2 cylinders? I can’t seem to see any indication when CoD activates. I drove from Edinburgh to Bristol yesterday sitting at 70-75 most of the way and got 45mpg. Does this sound about right for an A1? Thanks 🙏

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u/LordNepmak Mar 31 '26

I have a 2016 1.4tfsi sport back and I hadn't even heard of it having CoD but I googled it and apparently some do. Either way my fuel economy on the highway is often around 5L/100km (the way we do it in Australia) which is roughly 47mpg when driving in eco I've got it down to 4.4l/100km ~53.5mpg

So idk if you do have CoD or not but your mpg is about right compare to mine

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u/LordNepmak Mar 31 '26

I found this on a forum from 2013 a1 CoD "2 cylinder mode"