CDI Fuel Filter Change
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Joined: Sep 2005
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From: Houston, Texas
2005 E320 CDI
CDI Fuel Filter Change
Any other CDI owners change their own fuel filter ? If so, any recommended procedures ? I do my own oil changes and want to stay on top of the fuel filter more often than every 26K especially during the ULSD introduction. Many diesel pundits indicate ULSD will cause some older contaminates to break loose in pipelines, storage tanks, delivery systems ect.
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Joined: Apr 2006
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From: Federal Heights, CO
1982 300D VNT, 1980 240D 3.0T, 1982 300TD
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Joined: Jan 2006
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From: NJ
05 E320 CDI
At 32GPH, I put a lot more fuel through the filter on my boat that I do in the CDI. Even so, it is amazing how dirty the filters are after a year. All you need to do is get one load of bad fuel and the critters will be hanging out in your tank.
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Joined: Mar 2005
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From: So. California
2011 E350 Bluetec
I recently replaced the canister fuel filter on my 05 cdi. It's located on top of the engine, underneath the engine cover. You will need a torx socket to remove it and will need to replace the (two) fuel line clamps. The center-mounted bleed mechanism/sensor will need to be re-fitted to the new filter (which should include the two o-rings needed). After installing the new filter, bleed fuel from the bleed screw by attaching it to a hose and turning the key to its run (not start) position. It's a fairly easy job. I've heard that there's another fuel filter on the car but I'm not sure of its location. Let me know if you have any questions.
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Joined: Sep 2005
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From: Houston, Texas
2005 E320 CDI
Thanks everyone for the replies especially dpath. The procedure you outlined is very helpful. I really do enjoy doing some of my own maintenance on this vehicle. Not only do I save the bucks but am always amazed how well the car is engineered. Just hit 65,000 miles on the 2005 CDI and could not be happier with the vehicle. It still drives like new.
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Joined: Sep 2006
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From: Fort Myers Fl
2015 ML 350 4 Matic 2012 E 350 4 matic Wagon
secondary fuel filter location 06 cdi ?
I've seen & now have replaced engine compartment fuel filter & am having a "where's waldo" moment trying to locate second filter (which looks similar to otjher one-where I was expecting the typical clear in-line one as on my 96. Any ideas ? I'm about to go into the trunk since I'll replace the main battery & was wondering.....
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Senior Member
Joined: Jun 2009
Posts: 268
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From: Northern Virginia
2006 E320CDI
I've seen & now have replaced engine compartment fuel filter & am having a "where's waldo" moment trying to locate second filter (which looks similar to otjher one-where I was expecting the typical clear in-line one as on my 96. Any ideas ? I'm about to go into the trunk since I'll replace the main battery & was wondering.....
kind of hard to find something that does not exist. 05/06 E320CDI only has the one filter that needs to be serviced under the engine cover on the right as you face the car. Simple job to replace. I am using Hengst filters -- about $15-25 online -- have had no problems whatsoever.
Senior Member
Joined: Jun 2009
Posts: 268
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From: Northern Virginia
2006 E320CDI
Newbie
Joined: Sep 2010
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From: North Georgia
2009 E320 Bluetec
Anyone had done the fuel filter change on 09 Bluetec? At 40,000 miles, it's due to be replaced, though previous service interval said 20,000 miles. Any place to recommend for the filter and the clips? Thanks!
