Diesel Guys: 436d Error Code Help

socale39 · 07-29-2018, 11:35 PM

Over the weekend I got an error code that seems to not want to go away. According to my search it sounds like 436d is related to the SCR metering valve. Looking at buying a replacement Bosch unit however I wanted to post this up to see if anyone has had experience with this same code.

Thanks in advance.

socale39 · 08-03-2018, 11:16 PM

Anyone?

sunny_j · 08-04-2018, 05:16 AM

I'm what I can tell, 436d leads me to believe it's the metering valve. I have a used one that I'll sell and it has 65k on it. It was working perfectly before i deleted my x5d

socale39 · 08-04-2018, 09:12 PM

New one is only $130 however I’m thinking of trying to wash it of crystals first.

I’m curious, how do like the delete?

socale39 · 08-05-2018, 11:34 AM

Well it looks like mine is just straight faulty. Pulled it out expecting to see DEF crystallization but instead it’s actually pretty clean. Here’s a pic

The more I think about it even after clearing the codes it immediately popped back up several times so going to replace with a new unit and keep the fingers crossed this resolves the code.

sunny_j · 08-05-2018, 05:47 PM

Quote:

Originally Posted by socale39

New one is only $130 however I’m thinking of trying to wash it of crystals first.

I’m curious, how do like the delete?

The power is intoxicating and you can really hear the turbos. According to JR the stage 2.8 tune puts out 594ftlb. The engine seems to breathe easier, stopped CBU and fuel economy has improved slightly

socale39 · 08-06-2018, 10:52 PM

New valve set for delivery on Wednesday.

socale39 · 08-09-2018, 08:27 PM

Well, no dice so far. Swapped the valve and error remains unfortunately. Going to drive it around to see if it clears on it’s own.

If anyone has thoughts, please post

socale39 · 08-31-2018, 11:12 PM

So quick update. Took the X5 to a bmw shop and had them do the trans fluid and while at it asked them to reset all adaptations. Error code has cleared itself and the tech agreed that it was likely the metering valve but sometimes the emissions systems need a reset. Did that and all if well again.

07-29-2018, 11:35 PM	#1
socale39 Major 209 Rep 1,044 Posts Drives: 04 545i SMG Join Date: Jan 2011 Location: California iTrader: (0)	Diesel Guys: 436d Error Code Help Over the weekend I got an error code that seems to not want to go away. According to my search it sounds like 436d is related to the SCR metering valve. Looking at buying a replacement Bosch unit however I wanted to post this up to see if anyone has had experience with this same code. Thanks in advance.
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08-03-2018, 11:16 PM	#2
socale39 Major 209 Rep 1,044 Posts Drives: 04 545i SMG Join Date: Jan 2011 Location: California iTrader: (0)	Anyone?
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08-04-2018, 05:16 AM	#3
sunny_j Lieutenant 211 Rep 433 Posts Drives: 2012 X5d Join Date: May 2012 Location: Vancouver, British Columbia iTrader: (0)	I'm what I can tell, 436d leads me to believe it's the metering valve. I have a used one that I'll sell and it has 65k on it. It was working perfectly before i deleted my x5d
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08-04-2018, 09:12 PM	#4
socale39 Major 209 Rep 1,044 Posts Drives: 04 545i SMG Join Date: Jan 2011 Location: California iTrader: (0)	New one is only $130 however I’m thinking of trying to wash it of crystals first. I’m curious, how do like the delete?
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08-05-2018, 11:34 AM	#5
socale39 Major 209 Rep 1,044 Posts Drives: 04 545i SMG Join Date: Jan 2011 Location: California iTrader: (0)	Well it looks like mine is just straight faulty. Pulled it out expecting to see DEF crystallization but instead it’s actually pretty clean. Here’s a pic The more I think about it even after clearing the codes it immediately popped back up several times so going to replace with a new unit and keep the fingers crossed this resolves the code.
	Appreciate 0 Quote

08-06-2018, 10:52 PM	#7
socale39 Major 209 Rep 1,044 Posts Drives: 04 545i SMG Join Date: Jan 2011 Location: California iTrader: (0)	New valve set for delivery on Wednesday.
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08-09-2018, 08:27 PM	#8
socale39 Major 209 Rep 1,044 Posts Drives: 04 545i SMG Join Date: Jan 2011 Location: California iTrader: (0)	Well, no dice so far. Swapped the valve and error remains unfortunately. Going to drive it around to see if it clears on it’s own. If anyone has thoughts, please post
	Appreciate 0 Quote

08-31-2018, 11:12 PM	#9
socale39 Major 209 Rep 1,044 Posts Drives: 04 545i SMG Join Date: Jan 2011 Location: California iTrader: (0)	So quick update. Took the X5 to a bmw shop and had them do the trans fluid and while at it asked them to reset all adaptations. Error code has cleared itself and the tech agreed that it was likely the metering valve but sometimes the emissions systems need a reset. Did that and all if well again.
	Appreciate 0 Quote