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BenzWorld W126 & W201 Host
1988 420SE, 2002 C180 Kompressor, 200 ML320
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1,159 Posts
Discussion Starter · #1 ·
Hi guys

Servicing a friends 2006 E280 CDI next week and the diesel filter needs replacing.
Done it many times on older W124 models but not this engine,
Does the fuel system self bleed by turning the engine over as on the W124's or does it have to be bled manually and if so is there a manual pump built in or do you have insert one for the job and removed after bleeding?

Many thanks
 

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2006 Merc E320 cdi
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983 Posts
My assumption is the fuel filter is similar or even the same as the e320 cdi filter. If it is similar, all you have to do is remove the water separator in the center and the sensor and lastly the hoses, mount and it's a piece of cake. No special tools required but it does take some time.
 

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Current 2008 320ML CDI. Previous 1998 E320, 2007 E320 Bluetec
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2,533 Posts
spanners,
On my 2008 CDI I follow this sequence:
The bleeding is done by placing key in pos 2 (before Start).
Fuel pump will run until system is pressurized.
Advance key to start.

I've read that sometimes you need to hold the key in Start position until smooth idle, but that hasn't been my experience.

Skippy
 

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BenzWorld W126 & W201 Host
1988 420SE, 2002 C180 Kompressor, 200 ML320
Joined
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1,159 Posts
Discussion Starter · #5 ·
Serviced the car today, changed oil & oil filter, cabin filter, both air filters and the diesel filter. Advice was priceless, I never would have thought the diesel filter would prime so easily.
Gotta love the forums.
Thanks again guys.
 
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