Anyone had a new back box on their D5 exhaust?

40t · Nov 12th, 2019, 19:02

I'm looking to change mine in the hope that it'll cure the (worsening) resonance at some speeds on my low mileage 2008 V70 D5 auto. At £280, the dealer parts store volunteered that going to an exhaust centre (around £160 fitted) would be a better bet. I'd imagine that there may be some difference in longevity, but that's not really a major concern.

That said, the existing (original) box is in very good condition externally, as far as can be seen, so this is just to ask, before going ahead, whether anyone's experienced any drawbacks or knows of any?

Many thanks.

Model flyer · Nov 13th, 2019, 09:55

Are you sure its the back box thats causing the noise ? There are heat shields in that area and the mountings have a habit of corroding causing annnoying rattle at cirtain speeds. Both my V70 had in excess of 150 k and back boxes were fine , but both had to have the heat shields repaired.

40t · Nov 13th, 2019, 18:15

Thank you - I'm not sure it's the back box and will look into that before deciding. It's more of a boominess than a rattle, but I imagine a high frequency rattle could sound like that.

apersson850 · Nov 27th, 2019, 16:48

Mine are still working. The car is a 2012, with 300000 km on the dial.

BarryK · Nov 27th, 2019, 18:10

Mine is still good, 2008 V70 Summum D5 Manual with 200,000km. Just returned from Puglia after its second trip this year.

Nov 12th, 2019, 19:02	#1
40t Member Last Online: Yesterday 18:44 Join Date: Jun 2017 Location: Glos	Anyone had a new back box on their D5 exhaust? I'm looking to change mine in the hope that it'll cure the (worsening) resonance at some speeds on my low mileage 2008 V70 D5 auto. At £280, the dealer parts store volunteered that going to an exhaust centre (around £160 fitted) would be a better bet. I'd imagine that there may be some difference in longevity, but that's not really a major concern. That said, the existing (original) box is in very good condition externally, as far as can be seen, so this is just to ask, before going ahead, whether anyone's experienced any drawbacks or knows of any? Many thanks.

Nov 13th, 2019, 09:55	#2
Model flyer Master Member Last Online: Dec 15th, 2023 18:46 Join Date: Jan 2006 Location: Kent,pothole capital of UK.	Are you sure its the back box thats causing the noise ? There are heat shields in that area and the mountings have a habit of corroding causing annnoying rattle at cirtain speeds. Both my V70 had in excess of 150 k and back boxes were fine , but both had to have the heat shields repaired. __________________ The secret of flight is to aim at the ground and miss ! Previous Volvos 740 GLE . V40 CD ,V70 2.4 SE LPT.V70 D5 P2. V70 D5 Se Lux P3. Current Jaguar XF Sportbrake but still like Volvos

Nov 13th, 2019, 18:15	#3
40t Member Last Online: Yesterday 18:44 Join Date: Jun 2017 Location: Glos	Thank you - I'm not sure it's the back box and will look into that before deciding. It's more of a boominess than a rattle, but I imagine a high frequency rattle could sound like that.

Nov 27th, 2019, 16:48	#4
apersson850 Premier Member Last Online: Apr 22nd, 2024 14:08 Join Date: Jul 2011 Location: Traryd View Photos By: apersson850	Mine are still working. The car is a 2012, with 300000 km on the dial.

Nov 27th, 2019, 18:10	#5
BarryK 40 years with Volvo Last Online: Mar 14th, 2024 18:49 Join Date: Feb 2008 Location: Cruden Bay	Mine is still good, 2008 V70 Summum D5 Manual with 200,000km. Just returned from Puglia after its second trip this year.

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