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johnsonca9



Member Since: 22 Jan 2023
Location: Sheffield
Posts: 8

United Kingdom 2006 Range Rover HSE Td6 Tonga Green
Turbo vent air filter

Hi,

Thanks to all for the information I've already gleaned from this forum.

It has ben incredibly useful so far.

Just about to do a full service on my 55 plate M57 engined RR, and I bought a full kit with Maltings 4x4.

With the kit, I got an air filter, part number PHB000450, which I have searched and found it is a turbo vent air filter, but I'm still struggling to understand what this is actually for? If anybody could advise?

The kit does include the all important crankcase breather replacement filter as well, so happy on that front.

Post #656703 15th Feb 2023 9:20am
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stuart_2006



Member Since: 17 Jul 2018
Location: Holsworthy, Devon
Posts: 123

United Kingdom 2006 Range Rover Vogue Td6 Zermatt Silver

The turbo has variable vanes - so the turbo boost can be changed dynamically - and that is operated through a vacuum system. The filter is at the vent for that vacuum system. If you drive along with the driver's window down, and release the throttle, you'll probably hear a short 'chirp', which I think (but could be wrong!) is the vacuum system moving the turbo vanes and air either being expelled or sucked in through that vent.

Post #657101 18th Feb 2023 11:07pm
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johnsonca9



Member Since: 22 Jan 2023
Location: Sheffield
Posts: 8

United Kingdom 2006 Range Rover HSE Td6 Tonga Green

Thanks dude.

I changed it so I know it's done, but I like to know what the various bits do on my cars.

Thanks for the explanation.

Post #657332 21st Feb 2023 1:51pm
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