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Old 05-05-2012, 02:04 PM   #1
Join Date: Sep 2010
Posts: 33
How to change air filter on 2006 Discovery

Went to my local Freightliner dealer and purchased an air filter for our 2006 Discovery. Never been changed before, but it only has 19,000 mi on it.
So go out and loosen hose clamp on the flexible hose which leads from the canister to the intake air box. Can't begin to loosen the hose from the canister. I am assuming that I need to do this to slide the canister from the base where the hose goes to the engine turbo? I have a feeling I'll have a problem getting that loose also.
Anyone have ideas or experience with this?

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Old 05-05-2012, 06:18 PM   #2
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The connections are very tight. After the clamp is loosened you have to slide a hacksaw blade or 90 degree bent screwdriver in between the hoses and canister to break the seal. Also, on mine the bolts that hold the clamps in place had to be removed to get the canister out. Good luck, what seemed a really simple job turned out to be a bit of a bear.

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Old 05-05-2012, 06:36 PM   #3
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Location: Georgia
Posts: 4,072
My hose clamp was even stuck on the hose. I took a large flat screw driver broke the hose clamp then the hose from the filter very careful not to tear it then it can right off. I took a rag and sprayed it good with silicone and wiped the inside a couple of times and it slid right back on.
2007 Fleetwood Revolution LE 40V
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Old 05-06-2012, 10:38 AM   #4
Join Date: Sep 2010
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Air filter removal

Thanks for the tips. The bent hacksaw blade was the answer. Still don't have it completely loosened yet. Working on the backside now. Will get back to it tomorrow. Glad I tackled this when I had plenty of time.
I agree it does look like I will need to remove the bolts holding the clamps around the canister. This shouldn't be that hard.

One of these days I have to tackle changing out the transmission filters and fluid. F/L wants $500 + to do the job.

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