Print Page - Question with air con systems (156)

Title: Question with air con systems (156)
Post by: avim on March 31, 2009, 11:31:56 AM

I was looking at a 156 manual TS on the weekend and noticed that the revs would rise and lower very slightly as soon as the air conditioning was turned on whilst the car was at idle.
Is this normal or a cause for concern?

Title: Re: Question with air con systems (156)
Post by: John Hanslow on March 31, 2009, 01:01:03 PM

That's normal, happens with my car. happens more with older cars of any description. As soon as the aircon is engaged, the belt powering the compressor takes a small amount of power from the motor which drives it.

Good luck with your future purchase. Be mindful of other 156 purchase threads in rthis forum, and get the car checked out by an Alfa Specialits.

Cheers.

Title: Re: Question with air con systems (156)
Post by: avim on March 31, 2009, 02:44:40 PM

Thanks for the reply John.
The guy said that it was an emissions control thing and I wanted to clarify this point.

Title: Re: Question with air con systems (156)
Post by: meizhak on March 31, 2009, 06:47:37 PM

will have a idle control motor or solenoid that compensates for loads on the engine

Alfa Romeo Owners Club of Australia Forum

Technical => 932 Series (156, GTV, Spider, 147, GT, and 166) => Topic started by: avim on March 31, 2009, 11:31:56 AM