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M-Class (W164) Produced 2006-2011: ML280CDI, ML320CDI, ML420CDI, ML350, ML500, ML550

Glow Plugs and Controller

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Old Jun 21, 2017 | 10:49 PM
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Kiwi Ed's Avatar
Kiwi Ed
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From: New Zealand
2009 MB ML320 CDI
Glow Plugs and Controller
Hi
I'm wondering if I should replace our glow plug controller (09). It's got a metal base and a plastic top.
First glow plug failed in say 18 months from new (replaced under warranty). Since then 4 more have failed, one replaced twice. At that stage I replaced them all (2 hadn't failed). I see another one has gone now. We've only done 90,000km. Glow plug failure warning is glow plug light stays on for a bit after starting. Replacing failed glow plug, the one with some resistance, corrects this. (NO I HAVEN'T GOT A CODE READER.)
So wondering if replacing the controller with part number 6429007701 - is this the latest version? Would the glow plugs give less trouble?
Thanks.
Last edited by Kiwi Ed; Jun 21, 2017 at 10:52 PM.
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Old Jun 22, 2017 | 09:45 AM
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Maj. Dundee's Avatar
Maj. Dundee
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2002 ML 320 & 2006 ML500
What is your model designation, 164.122 or 125?
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Old Jun 22, 2017 | 07:11 PM
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Kiwi Ed's Avatar
Kiwi Ed
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From: New Zealand
2009 MB ML320 CDI
Thanks

Using Beru Glow Plugs supplied by MB.

Its 164.122
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Old Jun 26, 2017 | 08:52 AM
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Maj. Dundee
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From: Bronx, N.Y.
2002 ML 320 & 2006 ML500
Originally Posted by Kiwi Ed
Thanks

Using Beru Glow Plugs supplied by MB.

Its 164.122

Yes that is one of the plugs suggested by M/B.
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Old Jun 26, 2017 | 09:04 AM
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Maj. Dundee's Avatar
Maj. Dundee
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From: Bronx, N.Y.
2002 ML 320 & 2006 ML500
There are two versions of the glow plugs, steel or ceramic. Post the last 8 numbers of your vin.
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Old Jun 28, 2017 | 05:07 PM
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Kiwi Ed
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From: New Zealand
2009 MB ML320 CDI
2A477782
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Old Jun 29, 2017 | 05:37 AM
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Maj. Dundee
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From: Bronx, N.Y.
2002 ML 320 & 2006 ML500
I'm sorry, please post you full vin #.
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