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Polo 9N3 knocking sound from the back

Chat about your facelift 9n3 Polo - Including the 9N3 Polo GTI!
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samin999
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Posts: 1
Joined: Mon Jun 01, 2015 3:37 pm
Drives: Polo 9N3

Polo 9N3 knocking sound from the back

Post by samin999 » Mon Jun 01, 2015 3:52 pm

Hi there,

Wondering whether anyone else has come across this problem.

After my car warms up or if I go on long drives a dull knocking sound starts to appear at the back of the car. At first I thought it was something just left in the boot of the car but I cleared the boot and found it has a very odd pattern of making sounds. The sound comes about a lot quicker when its sunny or warm. It can knock over the smallest of bumps and the longer I drive the louder the knocking becomes. However if I drive the car the day after the sound is not there while the car is cold.

Any suggestions or has anyone had this problem before

Thanks

Ninjago
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Posts: 6
Joined: Tue Apr 05, 2016 5:59 pm
Drives: 9n3
Location: Malaysia

Re: Polo 9N3 knocking sound from the back

Post by Ninjago » Tue Apr 05, 2016 6:05 pm

Check antenna - broken rubber shield cause antenna keep knocking roof top when driving at high speed

J6ELA
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Posts: 2
Joined: Wed Apr 13, 2016 6:33 pm
Drives: Polo 9n3
Location: UK

Re: Polo 9N3 knocking sound from the back

Post by J6ELA » Wed Apr 13, 2016 6:56 pm

I have the exact same problem in the mornings! Then after 3-4 mins the car warms up and its away. seems to be coming from the back aswell.

PeterJJ21
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Posts: 3
Joined: Sun Apr 01, 2018 12:42 pm
Drives: 1.2 Petrol
Location: coventry

Re: Polo 9N3 knocking sound from the back

Post by PeterJJ21 » Sun Apr 01, 2018 1:54 pm

Check the rear shocks the rubber mounting at bottom could be failing with metal on metal as the rubber heats up. I had this on mine replaced both rear shocks, not more knocking form the rear.

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