E-Class (W211) 2003-2009

2009 E550 4Matic P2784

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Old 03-30-2023, 06:00 PM
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2007 cls 550
2009 E550 4Matic P2784

What can this code mean do I need new transmission solenoids I just did a conductor plate and new connector replacement
Old 03-31-2023, 11:39 AM
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OBD p2784 = speed sensors. Sensors are incorporated into conductor plate odd replacement is causing this code. Possible defective CP, current part # is 1402701161 (need VIN to confirm).

Old 03-31-2023, 11:46 AM
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Originally Posted by konigstiger
OBD p2784 = speed sensors. Sensors are incorporated into conductor plate odd replacement is causing this code. Possible defective CP, current part # is 1402701161 (need VIN to confirm).

WDBUF90X69B438846


Old 03-31-2023, 11:58 AM
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Originally Posted by konigstiger
OBD p2784 = speed sensors. Sensors are incorporated into conductor plate odd replacement is causing this code. Possible defective CP, current part # is 1402701161 (need VIN to confirm).


I wud need these right
Old 03-31-2023, 12:23 PM
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'71 Pinto
If steadfast on replacing solenoids rather than revisiting conductor plate itself where problem resides.
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Old 03-31-2023, 12:52 PM
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Originally Posted by konigstiger
If steadfast on replacing solenoids rather than revisiting conductor plate itself where problem resides.
so I shud look at the conductor plate instead of replacing the solenoids is wat u saying
Old 03-31-2023, 01:19 PM
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Have you read post 2?
Old 03-31-2023, 01:22 PM
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Originally Posted by konigstiger
Have you read post 2?
yes speed sensors might be a defective conductor plate
Old 03-31-2023, 01:24 PM
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And...
Old 03-31-2023, 01:52 PM
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[QUOTE=konigstiger;8750769]And...[/QUOTE

help me out and what lol 😂
Old 03-31-2023, 02:09 PM
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'71 Pinto
OBD code 2784 = speed sensors. Speed sensors are built into conductor plate (CP) and not replaceable separately. You said you replaced conductor plate, unless I misunderstood, so two choices. CP needs to be replaced again possibly being defective or pull codes using Xentry (MB diagnostics).
Old 03-31-2023, 02:53 PM
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Originally Posted by konigstiger
OBD code 2784 = speed sensors. Speed sensors are built into conductor plate (CP) and not replaceable separately. You said you replaced conductor plate, unless I misunderstood, so two choices. CP needs to be replaced again possibly being defective or pull codes using Xentry (MB diagnostics).
Ok I understand now and yes it have been replaced I got it off eBay but this time ima get one from the dealership instead
Old 03-31-2023, 11:26 PM
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2008 E350 4Matic, 2011 E350 4matic
Originally Posted by Johnnyb46
Ok I understand now and yes it have been replaced I got it off eBay but this time ima get one from the dealership instead
You bought a used conductor plate on eBay? Or was it new? Lots of fake parts out there too.
Old 04-01-2023, 12:13 AM
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Originally Posted by cetialpha5
You bought a used conductor plate on eBay? Or was it new? Lots of fake parts out there too.
no new this the part


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