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

How to put ML320CDI in DPF Regen?

Old Dec 9, 2024 | 01:47 PM
  #1  
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From: Pike Road, AL
2008 ML320 CDI
How to put ML320CDI in DPF Regen?

Hey guys. I got a DPF code and an EGR Flow code. I took the DPF to a local big rig shop, and they baked it out but I'm told I'll have to have the vehicle do a DPF Regen before the codes disappear. The EGR code also concerns me, though. The vehicle starts rough but will run and drive fine after the initial, rough start.

What's the easiest way to get my ML into DPF regen? All I currently have is an entry-level OBD-2 scanner.
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Old Dec 10, 2024 | 07:08 AM
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Originally Posted by 5hundo
Hey guys. I got a DPF code and an EGR Flow code. I took the DPF to a local big rig shop, and they baked it out but I'm told I'll have to have the vehicle do a DPF Regen before the codes disappear. The EGR code also concerns me, though. The vehicle starts rough but will run and drive fine after the initial, rough start.

What's the easiest way to get my ML into DPF regen? All I currently have is an entry-level OBD-2 scanner.
The DPF code was more likely just a calculated virtual one. Maybe the guy from cleaning service already suggested as your DPF was already clean....

The EGR fault code need to be solved, as without proper EGR function the regeneration can't be started, forced or natural.

On old M642 the silver pipe from EGR cooler to the mixing chamber is usually clogged, not the EGR itself.

Post the Fault codes,

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Old Dec 12, 2024 | 03:43 PM
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From: Pike Road, AL
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Originally Posted by trigital
The DPF code was more likely just a calculated virtual one. Maybe the guy from cleaning service already suggested as your DPF was already clean....

The EGR fault code need to be solved, as without proper EGR function the regeneration can't be started, forced or natural.

On old M642 the silver pipe from EGR cooler to the mixing chamber is usually clogged, not the EGR itself.

Post the Fault codes,
Its a generic code reader but I got P0401 "EGR Flow Insufficient" and P2002 "DPF Bank 1 Trap efficiency..."

Whats a decent code reader/programmer that.I can upgrade to for a home mechanic? I need something a little more useful.
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Old Dec 12, 2024 | 05:01 PM
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Originally Posted by 5hundo
Its a generic code reader but I got P0401 "EGR Flow Insufficient" and P2002 "DPF Bank 1 Trap efficiency..."

Whats a decent code reader/programmer that.I can upgrade to for a home mechanic? I need something a little more useful.
Till you decide, try a mechanic to check the mentioned pipe
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Old Dec 17, 2024 | 01:07 PM
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Originally Posted by trigital
Till you decide, try a mechanic to check the mentioned pipe
I cleaned out the pipe and it wasn't really that dirty at all. Its still doing the same thing and giving the fault codes. Does that mean the EGR valve is bad?
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Old Dec 17, 2024 | 01:23 PM
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Originally Posted by 5hundo
I cleaned out the pipe and it wasn't really that dirty at all. Its still doing the same thing and giving the fault codes. Does that mean the EGR valve is bad?

This one?

Your engine is 320CDI, the first generation one?
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Old Dec 17, 2024 | 02:25 PM
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From: Pike Road, AL
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Originally Posted by trigital

This one?

Your engine is 320CDI, the first generation one?
yes, that’s the one.
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Old Dec 17, 2024 | 02:27 PM
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Sorry, now I would find a decent MB scanner.
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Old Dec 17, 2024 | 11:09 PM
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From: Pike Road, AL
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Originally Posted by trigital
Sorry, now I would find a decent MB scanner.
any recommendations?
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Old Dec 20, 2024 | 12:00 AM
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Originally Posted by 5hundo
any recommendations?
This one was recommended in a different thread
https://a.co/d/8Lq5DTK
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Old Dec 20, 2024 | 04:44 PM
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From: Pike Road, AL
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Originally Posted by SiriusMB
This one was recommended in a different thread
https://a.co/d/8Lq5DTK
Thank you!!!
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