hello , we recently bought a 2017 freelander 2 with i6 engine, very nice car, but with very regularity the engine makes a squeaking and whistling noise, and quite extremely loud. turning aircon on and off has no effect, neither does the revs.

please help because it is really unbearable as much noise as it makes

Maybe the water pump ?

already checked it sounds like brake jamming

Alternator 'one way clutch' pulley?

https://www.freel2.com/forum/topic39052.html?highlight=alternator FL2 XS SD4 Auto 2010 2012-2017 (21k - 91k miles) (MY2011)
FL2 Metropolis SD4 Auto 2014 2017- (16k - 79k+ miles) (MY2015)
Metro in its 11th Year of (Extended) LR Warranty / Full LR Service History
(Expensive, but Trouble/Worry free - hopefully?)

thanks ,but it's nothing like that noise, it's much worse

A Video/Audio clip would be useful as it would give us a clue.

I take it that you are saying that it is still occurring when FL2 is stationary and stays the same as you vary the revs.

Also varying the heating system fan and aircon on/off makes no difference? FL2 XS SD4 Auto 2010 2012-2017 (21k - 91k miles) (MY2011)
FL2 Metropolis SD4 Auto 2014 2017- (16k - 79k+ miles) (MY2015)
Metro in its 11th Year of (Extended) LR Warranty / Full LR Service History
(Expensive, but Trouble/Worry free - hopefully?)

My money is on the PCV valve.

PCV usually could be a honking (like geese) sound. Start it and then remove the dip stick after 30 seconds.....any additional sound?

it is a sound like if a brake is running strongly, high squeak and it fails to reproduce and no partoon, can you drive without the pvc valve ? maybe that is worth trying then.
and how do you remove that valve?

You can't just remove the valve, it's integral to the valve cover. It's easy to replace though. But as was mentioned, that's a goose honking noise and easy to rule out by pulling out the dipstick to see if the honking stops.

The noise as described sounds more like something on the drive belt. Has the tensioner and idler pulley ever been replaced? Those don't last forever and if one of those pulleys is jamming intermittently it will break the belt soon.

Might try removing the belt, and trying to turn all pulleys by hand, to see if one is dragging.

hello thanks for help, i have found it

i have mountend an new catering ventilation, no more sounds!!!!!

Forgive me my ignorance, but what is a "new catering ventilation"?

I have a similar car.
Kind regards,
Redfox.

New Catering Ventilation is most likely the Positive Crankcase Ventilation value or module.

Thanks!
I'll go and clean mine asap. I am sure that the pdo didn't even think of doing this.
Cheers,
Redfox.

https://www.freel2.com/forum/topic32107.html