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Gal Dove

Member Since: 22 Jan 2022
Location: South Wales
Posts: 87

2014 Defender 110 Puma 2.2 USW Corris Grey

Boost pipe leaking..?

Hi all.

Puma 2.2. MY 2014. 31k miles.

I've got a 'air-sucking' sound coming from the n/s when under power - nothing at idle.
I'm assuming that it's one of the boost hoses - and most likely to be the one that sits under the EGR valve and has a tight 90deg turn in it towards the front of the car. Engine Management light is now on too.

I've done a bit of searching on here to try and get some advice on fitting and whether to go with OEM or silicone, etc.

Can anyone confirm that I'm probably in the right ballpark in terms of diagnosis - and if so whether there's any advice on what hoses to replace the busted one with (OEM/silicone?) - and how difficult the job is likely to be? Pretty shocked that this has happened on a 2014 car with 31k miles! Many thanks.

18th Sep 2025 9:06pm

Andyslandytd5

Member Since: 06 Nov 2021
Location: Southampton
Posts: 84

2015 Defender 110 Puma 2.2 USW Montalcino Red

Hey, I have a n sucking noise on mine too 2.2 110 2015 60k. I always thought it was normal for the 2.2 when the window is open. But then I dont have the Engine Management light aswell.

Do you have a code reader? 2015 Puma 2.2 110 XS Utility Station Wagon - 2024 - Present
2004 TD5 90 XS Station Wagon - 2019-2024
2003 TD5 90 G4 LE - 2009-2010
1990 Ninety 6.2 V8 Station Wagon - 2006-2009

19th Sep 2025 4:34pm

Gal Dove

Member Since: 22 Jan 2022
Location: South Wales
Posts: 87

Hi Andy.
Thanks. No, I don’t have a code reader but there was a hole in the 90° boost pipe - so it’s definitely knackered.
My engine management light took a while to come on. You’d be losing power under acceleration if you’ve got a hole. She’ll only do it whilst moving and under acceleration.

19th Sep 2025 8:03pm

Crash7

Member Since: 21 Feb 2024
Location: South
Posts: 38

Did you go silicone or OEM replacement?

19th Sep 2025 9:09pm

Gal Dove

Member Since: 22 Jan 2022
Location: South Wales
Posts: 87

Good question. I was caught out by this and didn’t realise that silicone was and option. I’ve only ever seen this on fast German cars with the engine in the back

So it looks like it’ll be OEM - or worse still, aftermarket.

19th Sep 2025 9:18pm

piechipsandpeas

Member Since: 12 May 2021
Location: Albany, Western Australia
Posts: 235

2013 Defender 110 Puma 2.2 SW Indus Silver

Hi Gal
Have a look here for instructions to change the elbow https://www.defender2.net/forum/topic81674.html. It’s quite a common failure unfortunately but there are some good quality silicone replacements available which last far longer than the original LR ones.

20th Sep 2025 12:28am

Gal Dove

Member Since: 22 Jan 2022
Location: South Wales
Posts: 87

That's great, many thanks, piechipsandpeas

20th Sep 2025 5:12pm

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