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Colin Crossley · 29th May 2007, 07:45

Recently I have noticed that when the a/c is on (auto), there is an increased sound when accelerating or decelerating in low gears. The noise "follows" the revs of the engine. As soon as the a/c is switched off (econ) it stops. I've checked the fan and it seems to be OK, and the a/c seems to be chilling the car and clearing the screen OK.

Anybody any thoughts on this please.

29th May 2007, 07:45	#1
Colin Crossley Newbie MG ZT Join Date: Nov 2006 Location: Frodsham Posts: 27 Thanks: 0 Thanked 0 Times in 0 Posts	"revving" noise from aircon Recently I have noticed that when the a/c is on (auto), there is an increased sound when accelerating or decelerating in low gears. The noise "follows" the revs of the engine. As soon as the a/c is switched off (econ) it stops. I've checked the fan and it seems to be OK, and the a/c seems to be chilling the car and clearing the screen OK. Anybody any thoughts on this please.