2008 ML320 CDI limped home - Mercedes-Benz Forum
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#1 (permalink) Old 05-20-2012, 10:08 AM
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2008 ML320 CDI limped home

Last week We just merged onto the Trans Canada highway outside Canmore and the engine light came on as the engine wouldn't accelerate. I could reach highway speed after a kilometre and lost speed drastically uphill. We limped home and booked an appointment with my dealer.

Diagnosis was both intake manifold electric motors had seized and the complete intake manifold needed replacement. A pricey repair bill and one week in the shop.

I have 155,000 km.

Is this an isolated case? Comments?
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#2 (permalink) Old 05-20-2012, 01:14 PM
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I am at 100k and my inlet port motor failed.
I did the job myself. Removed turbocharger + removed both intake manifolds, cleaned allllll the gunk outta them, and then reassembled with a new inlet port shutoff motor. Took a freaking long time but saved me the couple thousand dollars that the dealer had quoted.

This is a very common issue with these CDI's.

Did they say specifically that the flaps in the intake manifold had seized? From what I understand it is generally dealership "procedure" to change the motor AND the manifolds while they have it opened up.
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#3 (permalink) Old 05-21-2012, 10:03 PM
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i'll look you up in a few km's.
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#4 (permalink) Old 05-30-2012, 01:20 PM
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Where is the turbocharger and intake manifolds? I have a 2008 ML 320 cdi and it's doing the same thing. The codes I get are 0245, 0100, 0111. It doesn't have any power at take off but does after awhile.
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#5 (permalink) Old 05-30-2012, 08:44 PM
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^^^
If you have to ask, it's not the job for you...
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#6 (permalink) Old 06-01-2012, 12:16 PM
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Originally Posted by dgiturbo View Post
^^^
If you have to ask, it's not the job for you...
Under hood

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#7 (permalink) Old 06-01-2012, 01:51 PM
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Thanks for your help...you're really smart.
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#8 (permalink) Old 06-01-2012, 04:43 PM
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Pop the hood, pull the engine cover. In the center on top of the engine, right against the firewall is the turbo.

There are quite a few pics in this write up on replacing the swirl motor, including the turbo: http://www.chirpz.com/swirl/Swirl%20Project.pdf
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#9 (permalink) Old 06-01-2012, 08:57 PM
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Originally Posted by camino70 View Post
Pop the hood, pull the engine cover. In the center on top of the engine, right against the firewall is the turbo.

There are quite a few pics in this write up on replacing the swirl motor, including the turbo: http://www.chirpz.com/swirl/Swirl%20Project.pdf
here is a full write up for the CDI with pictures
V6 CDI Inlet Port Shut Off Motor Replacement - Mercedes-Benz Owners' Forums
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#10 (permalink) Old 06-04-2012, 09:34 AM
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Thanks but the turbo works. I found the problem which was a dry rotted lever around the intake manifold that wasn't letting air in.
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