I noticed that the fuel consumption in my 08 3.0R 5EAT was a bit high over the last week, but traffic has been bad so chalked out up to lots of stop/start. After filling up the fuel tank and resetting the trip metre did I see it happening, while sitting at idle the average fuel consumption was rising fast, about 0.2l/100km every 30 seconds.
I haven't noticed a loss in power, but it was idling a bit tough after starting after sitting for a few minutes, and normal driving seems uneffected and lowers the average fuel consumption.
Does anyone have an idea on where to start looking? There's no check engine light and don't have an OBD2 reader, so I was going to check fuel injectors and spark plugs first