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Sammyboy



Member Since: 28 Feb 2017
Location: Hampshire
Posts: 121
United Kingdom 2012 Defender 110 Puma 2.2 USW Sumatra Black
Noise from Air Intake
I have a 2012 2.2 110 USW that drives and sounds superb. With this current heatwave I've been doing a lot of miles with the drivers window down. With the window open I sometimes here a sort of 'throaty' sound coming from just in front of drivers door, presumably the air intake. The sound changes pitch now and again with an occasional minor 'cough' especially at lower revs and when changing gear or accelerating and decelerating. At full driving speed in 5th or 6th gear sound is constant and smooth. The sound cannot be heard with window closed. Is this normal?? Bow down Discovery 4 HSE
Defender 2.2 110 USW XS
Ford Kuga AWD
Discovery 3
Range Rover P38
Discovery - 300 TDI
Discovery - 200TDI
Post #721111 2nd Aug 2018 6:23pm
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UtilityTruck



Member Since: 09 Jan 2014
Location: Oxford
Posts: 463
United Kingdom 
Definitely not the viscous fan kicking in? It’s quite a loud, roaring/rushing noise. I find mine doesn’t kick in much but is most likely heard after driving at higher road speeds and then slowing down, e.g for a junction or similar.

Failing that...

When did you last change the air filter? Perhaps you’ve got some debris in there? It’s simple to take the lid off and pop out the filter to take a look 2014 Keswick Utility 2.2
Post #721116 2nd Aug 2018 6:44pm
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sloderby1



Member Since: 08 Feb 2018
Location: Derby
Posts: 20
My 2015 90 does very similar - as you say, more noticeable with the recent requirement to have windows open.
I guess you've not got aircon either then!
Post #721122 2nd Aug 2018 7:09pm
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zsd-puma



Member Since: 09 Aug 2016
Location: Kent
Posts: 2720
United Kingdom 2010 Defender 110 Puma 2.4 USW Santorini Black
Sprinters used to do that. It was the DPF regen cycle.
Post #721129 2nd Aug 2018 7:52pm
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Sammyboy



Member Since: 28 Feb 2017
Location: Hampshire
Posts: 121
United Kingdom 2012 Defender 110 Puma 2.2 USW Sumatra Black
sloderby1 wrote:
My 2015 90 does very similar - as you say, more noticeable with the recent requirement to have windows open.
I guess you've not got aircon either then!


I have air-con but like window open sometimes Thumbs Up Discovery 4 HSE
Defender 2.2 110 USW XS
Ford Kuga AWD
Discovery 3
Range Rover P38
Discovery - 300 TDI
Discovery - 200TDI
Post #721195 3rd Aug 2018 9:02am
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jst



Member Since: 14 Jan 2008
Location: Taunton
Posts: 8026
 2011 Defender 110 Puma 2.4 USW Stornoway Grey
Ferrari going past? Cheers

James
110 2012 XS Utility
130 2011 M57 bespoke Camper
90 2010 Hardtop
90 M57 1988 Hardtop
Post #721202 3rd Aug 2018 9:46am
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jst



Member Since: 14 Jan 2008
Location: Taunton
Posts: 8026
 2011 Defender 110 Puma 2.4 USW Stornoway Grey
Ferrari going past? Cheers

James
110 2012 XS Utility
130 2011 M57 bespoke Camper
90 2010 Hardtop
90 M57 1988 Hardtop
Post #721203 3rd Aug 2018 9:52am
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Sammyboy



Member Since: 28 Feb 2017
Location: Hampshire
Posts: 121
United Kingdom 2012 Defender 110 Puma 2.2 USW Sumatra Black
Their not that fast Rolling with laughter Discovery 4 HSE
Defender 2.2 110 USW XS
Ford Kuga AWD
Discovery 3
Range Rover P38
Discovery - 300 TDI
Discovery - 200TDI
Post #721204 3rd Aug 2018 9:52am
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Caterham



Member Since: 06 Nov 2008
Location: Birmingham
Posts: 6298
England 2011 Defender 110 Puma 2.4 XS CSW Stornoway Grey
it's not a simples case of the air filter lid isn't fitted properly?
easily done (or not as the case may be)>
Post #721245 3rd Aug 2018 3:17pm
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Siwynne



Member Since: 04 Nov 2016
Location: West lancs
Posts: 578
England 
Mine does this. More noticeable when I put a new filter in. It also sounds different when I use a non genuine air filter. Mine is in properly and the air box is sealed. I just put it down to Induction noise. I do know the cough you talk about though.
Post #721251 3rd Aug 2018 4:18pm
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Sammyboy



Member Since: 28 Feb 2017
Location: Hampshire
Posts: 121
United Kingdom 2012 Defender 110 Puma 2.2 USW Sumatra Black
That's exactly what it sounds like and what I thought it was. I just thought I would ask others of their opinion and experiences. Thumbs Up Discovery 4 HSE
Defender 2.2 110 USW XS
Ford Kuga AWD
Discovery 3
Range Rover P38
Discovery - 300 TDI
Discovery - 200TDI
Post #721253 3rd Aug 2018 4:21pm
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Roy5695



Member Since: 15 Feb 2014
Location: Cornwall
Posts: 1123
United Kingdom 2011 Defender 110 Puma 2.2 XS DCPU Indus Silver
Mine does this, especially when you’re between 1500 and 2000RPM. Pretty sure it’s the recirculating valve/turbo noise. 2011 Defender DCPU 2.2 - https://www.defender2.net/forum/topic30623.html

Instagram - @r22oyp

Roy
Post #721265 3rd Aug 2018 5:40pm
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andydef90



Member Since: 09 Feb 2015
Location: yorkshire
Posts: 617
United Kingdom 2014 Defender 90 Puma 2.2 HT Corris Grey
its quite normal its just air pulling in the air box you will get different noise depend at what your accelerating at and constant at a set speed Smile
Post #721636 6th Aug 2018 7:36am
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Sammyboy



Member Since: 28 Feb 2017
Location: Hampshire
Posts: 121
United Kingdom 2012 Defender 110 Puma 2.2 USW Sumatra Black
Thanks Thumbs Up Discovery 4 HSE
Defender 2.2 110 USW XS
Ford Kuga AWD
Discovery 3
Range Rover P38
Discovery - 300 TDI
Discovery - 200TDI
Post #721698 6th Aug 2018 10:56am
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Sammyboy



Member Since: 28 Feb 2017
Location: Hampshire
Posts: 121
United Kingdom 2012 Defender 110 Puma 2.2 USW Sumatra Black
All fixed. Removed air filter, cleaned air box and hoovered filter (would have bought a new one but going for a full service in two weeks) , sound gone and runs even better than she did before with no unusual noises. Thumbs Up Discovery 4 HSE
Defender 2.2 110 USW XS
Ford Kuga AWD
Discovery 3
Range Rover P38
Discovery - 300 TDI
Discovery - 200TDI
Post #722034 7th Aug 2018 6:17pm
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