Sharan chirping noise on full lock

[Grant2012]

Hey team, got a problem with the wifes 06 Sharan. On full lock only and either side its making a squeely chirping noise which is reasonably loud. I thought it would be the old seized alternator pulley but I changed the whole thing and it didn't make any difference. What else should I be looking at??

[marcushamblin1976]

Tensioner or belt , feel the belt does it feel a little loose? To be honest i would of changed the belt and tensioner and alternator pulley as they are very common. 

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[KingyMAK]

Sounds really stupid, but;

Turn off any fans/hvac inside the car and see if it still full locks then.

My fan chirps if I put the car under a bit load like full lock.

[daddyfixit]

poss the aux belt tensioner ? mine was making stupid noises also...

[gregers]

turn off aircon,to see if the noise disappears?had some strange noises on mine,turned out to be the aircon clutch plate parting company with the compressor.

[bouncypete]

I'd make sure power steering fluid level reservoir is full, not just ok.

[Audiman]

Seized alternator pulley would cause the aux. belt to slip.
I replaced the alternator pulley when I had the same issue. Quite an easy job to do

[regw]

Mine did the same esp on low rev parking/reversing.
Changed belt and tensioner to no avail and it was only after I
changed the alternator pulley it stopped.

have a look at the tensioner at tick over, it shouldn't move much
if it is, the pulleys knackered

vid
https://vimeo.com/277821051

[regw]

Aww shoot!
you already did, sorry, missed that bit.

[johnnyroper]

I bet after the failed overrunning pulley the tensioner is now knackered,I had the seized alt pulley which I replaced but tensioner still bounced around and was noisy when in full lock parking etc.