Driving my TD4 yesterday I noiced that there was a slight vibration at idle which went when I turned the temperature control down to the coldest setting. The air con was off so I am at a loss as to why this should happen.
I have noticed that when I do switch the aircon on the light comes on on the switch but engine revs do not change and I dont here any 'click' to suggest anything has switched on (although not familiar with this car so not sure what to listen for).
Its too cold to get an idea of whether or not the ac is working but I am wondering if someone has wired it permanently on or wether this is a common fault??
I have noticed that when I do switch the aircon on the light comes on on the switch but engine revs do not change and I dont here any 'click' to suggest anything has switched on (although not familiar with this car so not sure what to listen for).
Its too cold to get an idea of whether or not the ac is working but I am wondering if someone has wired it permanently on or wether this is a common fault??