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Honda Jazz Forums => Honda Jazz Mk3 2015 - 2020 => Topic started by: Geordielad on February 15, 2023, 04:40:26 PM

Title: Aircon Noise
Post by: Geordielad on February 15, 2023, 04:40:26 PM

My Mk3 Jazz makes a very audible noise when the aircon kicks in, especially noticeable when the bonnet is open.
Is this normal or should I be worried?
I can only describe the noise as a sort of ‘tinny’ clang. There is no noise when it’s running, only on start up.

Title: Re: Aircon Noise
Post by: Lord Voltermore on February 15, 2023, 05:10:55 PM

There is normally some noise,because the aircon compressor is powered by the fan belt pulley.  (unless the mk3 is different to most other cars)   When the compressor is  off the fan belt pulley freewheels.  When the aircon is switched on  an electric clutch locks the pulley solid so the compressor is turned.  This makes a noise  but I cant say if your noise is normal or excessive. Probably normal.
Sometimes the pulley clutch can rattle a bit when the aircon is off.
 

Title: Re: Aircon Noise
Post by: jazzaro on February 15, 2023, 05:18:13 PM

Quote from: Geordielad on February 15, 2023, 04:40:26 PM

My Mk3 Jazz makes a very audible noise when the aircon kicks in, especially noticeable when the bonnet is open.
Is this normal or should I be worried?
I can only describe the noise as a sort of ‘tinny’ clang. There is no noise when it’s running, only on start up.

the noise you hear is the air con clutch engaging, it's normal