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850 / S70 & V70 '96-'99 / C70 '97-'05 General Forum for the 850 and P80-platform 70-series models |
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Air box questionViews : 337 Replies : 4Users Viewing This Thread : |
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Jun 12th, 2018, 17:52 | #1 |
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Last Online: Jan 19th, 2019 10:10
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Location: Farnham
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Air box question
Can anyone tell me what the hose coming from the front of the air box is and where it goes to? Mine just has a rubber bung over where the hose would go. Thanks
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Jun 12th, 2018, 18:22 | #2 |
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Last Online: Yesterday 17:43
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Hi Andz,
Do you have the hose at all, or just a bung ? Some of my V70s and C70s have a bung and no hose, and some have a hose and no bung! I haven't worked out what models have what or what it does. Are you worried that you are missing something? Steve
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V70 2.5 Turbo AWD Man. 1999 Red V70 2.5 10V Auto 1998 Green C70 T 20V Auto Conv. 2001 Blue, C70 T5 Auto Conv. 2000 Blue V70 2.5 Turbo AWD Auto 1998 Green, V70 2.5 10V Auto BiFuel 1999 Red (scrapped) V70 20v Auto 1999 Green (scrapped) |
Jun 13th, 2018, 11:13 | #3 |
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Mine doesn't have the hose,just the bung.I guess it's some sort of option,I'm just interested to know what it's for.
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Jun 13th, 2018, 12:19 | #4 |
Retrofit master
Last Online: Mar 28th, 2022 10:14
Join Date: Mar 2010
Location: Berlin
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That hose is for the SAS (secondary air system) and it provides filtered air to the air pump below the battery. The pump is active on cold starts and blows air into the exhaust gases in order to heat them up and to bring the catalitic converter faster to its working temperature.
Some cars had this, was more common on natural aspirated engines. |
Jun 13th, 2018, 13:31 | #5 |
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Thanks for the reply
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