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DISCO3.CO.UK > Maintenance & Mods (D4)

Engine Bay Exhaust Leak

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stevebez

Member Since: 18 Apr 2011
Location: Kent
Posts: 87

2012 Discovery 4 3.0 SDV6 HSE Auto Ipanema Sand

Engine Bay Exhaust Leak

So I have fumes (visible but not excessive) leaking into the engine bay (floating is more like it). It seems to be coming from the primary turbo side but I cannot hear any exhaust leak which is baffling me a bit. I just fixed a copper injector seal blowing and that's now sorted but still have this other leak it seems.

This was on cold start fwiw.

Any thoughts on culprit and best way to diagnose?

Thanks.

13th Jan 2023 1:18 pm

Lrstaylor

Member Since: 03 Oct 2018
Location: Kent
Posts: 619

2005 Discovery 3 TDV6 HSE Auto Adriatic Blue

Cracked inlet manifold ?

13th Jan 2023 1:39 pm

stevebez

Member Since: 18 Apr 2011
Location: Kent
Posts: 87

[Possibly ... but I would have expected a ticking sound on this (dunno I am a petrol engine guy so mbe not as audible on Diesel?).]

Seems like Ill need to be digging into the nether regions to find this..

Sorry - I thought you typed exhaust Manifold... nope not the intake - this had cracked a while back and was recently replaced. Also smoke emanates from the bottom right rear of engine as you face it. Could be a simple gasket seal further downstream. So its either from the turbo gubbins, xover ex pipe or other connections / holes

13th Jan 2023 1:51 pm

Lrstaylor

Member Since: 03 Oct 2018
Location: Kent
Posts: 619

Smoke test it, it's a common fault.
Have a look on the tube best video are from

LRTime

13th Jan 2023 2:52 pm

Forlorn Hope

Member Since: 02 Apr 2018
Location: Consett
Posts: 18

2011 Discovery 4 3.0 SDV6 HSE Auto Barolo Black

Sounds a bit like the issue I have, which is a cracked cross over pipe. The real issue is finding a reputable dealer to do the work at a reasonable cost. SDV6 HSE
Rock and tree sliders
Goodridge hoses and M Tec disks

24th Jan 2023 3:35 am

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