Odd pump/grumbling noise from engine bay when coming to a stop

[steamship]

Originally Posted by rory_pamphilon

Where is the AC compressor located?

The attached image should help. The AC compressor is at the bottom right of the serpentine belt route.

[rory_pamphilon]

Originally Posted by steamship

The attached image should help. The AC compressor is at the bottom right of the serpentine belt route.

Thanks for this, does that make it a possible candidate then for odd noise coming from front left engine bay area?

I have tried driving around with AC on econ mode at times and its a little difficult to tell due to the noise not being too frequent but it does seem to abate when set like this however its not cut and dried, i.e. if i switch econ on when this noise is occuring it doesnt seem to kill it instantly. does the AC continue to run on perhaps for a little while when turning econ on?

[ainarssems]

On the D3 Aircon is permanently drive, not electric clutch like in older cars. It has variable valve which regulates cooling so it makes sense that it's still working for a little while after you press Econ button until the built up pressure dissipates

[rory_pamphilon]

Yeah interesting, that makes sense.

How big a job am i looking at to replace the AC pump?