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BMW 3-Series (E90 E92) Forum
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X5D SCR delete questions
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05-22-2016, 01:14 PM | #1 |
My X5d tows my spec miata to the track.
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X5D SCR delete questions
So I have a persistent CEL: 004804 DDE Reducing agent pressure buildup, plausibility.
Found this but no resolution. http://www.bimmerfest.com/forums/sho...d.php?t=655644 I've already replaced a DEF tank and am tired of spending money to fix a system that is unnecessary, problematic, and costly to repair. I have read a bunch of threads about tuning and deleting the SCR and EGR systems and looking for information on a fully sorted setup. I'm prepared to by the downpipe and tune, and I'm looking for the complete package that will allow the OBDII diesel emissions check pass. Thanks in advance. |
05-22-2016, 01:25 PM | #2 |
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Link is no longer any good.
I'm wondering if pressure buildup means that the metering valve (that's the urea injector) is clogged and needs cleaning with distilled water. |
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05-22-2016, 04:54 PM | #3 |
My X5d tows my spec miata to the track.
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Yeah, I forgot that bimmerpost deletes the information from competing forums. Pretty crappy policy if you're trying to share information... Anyway, I first thought it was the injector but that link says the pump can't develop pressure so it may be the pump. It's $500-600 and a bunch of labor which is why I'm considering deleting the system. I might try adding some hydrochloric acid to see if I can get the the crystallized stuff to dissolve if that's the issue.
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05-22-2016, 06:20 PM | #4 | |
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Drives: 2010 BMW 335d
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Quote:
I used BPC on my X5 35d- bimmerperformancecenter.com in NC. They are great to deal with. Advisor is Randall Tuner is Bob. Bob posts here frequently I used JR Auto Performance and Bohl for my 335d. Great option as well I believe AA Rodriguez is a US option for the JR Auto Tune and supplies DP's. He posts here frequently also. All have threads on this board If you want to pass emissions, better keep all your hardware for recurring tests. If checking OBDII readiness only, they can tune around that I believe. There are others on here that have much more knowledge than I. |
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05-24-2016, 06:24 AM | #5 |
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Drives: 2012 X5 35d
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Location: Washington Island, Wisconsin thru Death's Door
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05-25-2016, 06:12 PM | #8 |
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Drives: 2010 BMW 335d
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Garage List 1984 Dodge Ramcharg ... [0.00]
1988 Ford Bronco 351 [0.00] 2002 BMW e39 540i S ... [0.00] 2010 BMW 335d [0.00] 1997 Husaberg FC600 [0.00] 2010 X5 35d [0.00] 2015 Can-Am Outland ... [0.00] 2004 Ford F350 Supe ... [0.00] 2014 Ford Edge (Com ... [0.00] 2014 John Deere D130 [0.00] 2010 John Deere JS46 [0.00] |
+2 dissolves easily on contact with water. Be sure to use distilled water only and be very meticulous to prevent contamination of the system
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