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PN14 · 31st May 2013, 10:31

As title says my zt cdti will idle normally if the aircon is off however if the car is left idle and aircon is on the idle is rough with revs increase slightly and then drop off. Turn off the aircon and it will idle prefectly smooth again. I presume the aircon is loading the engine somewhat. Is this normal? Its rather annoying if your stuck in traffic around town.

31st May 2013, 10:31	#1
PN14 Newbie MG ZT Cdti Join Date: Mar 2011 Location: Limerick Posts: 17 Thanks: 5 Thanked 1 Time in 1 Post	Rough Idle when Air Con is On As title says my zt cdti will idle normally if the aircon is off however if the car is left idle and aircon is on the idle is rough with revs increase slightly and then drop off. Turn off the aircon and it will idle prefectly smooth again. I presume the aircon is loading the engine somewhat. Is this normal? Its rather annoying if your stuck in traffic around town.