Taffyo0

Got a3 ,1.5 diesel,on startup it idles perfect,after around 1 min,it starts idling rough,if I put foot on clutch it idles perfect again,only happens when cold

Thx for u reply, I found out if I use heater on rev go height for around 20 min of driving, if I not use heater it stay on750 rev, so I guess heater the issue, looked on internet could be battery, heat sensor, it still under warranty, and it booked in for service next week

Hi, I’m new here, got Audi A3 1.6 tdi 2015, when I start it goes to 10000 rev, after about 20 min drive it goes down to 750 rev, any idea what this could be. Thx