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#1
03-30-2021, 10:38 AM
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How do you know the DPF needs replacing/cleaning?
My X5 has 140k miles on the clock so it is about time but I'd like to know for sure... so the question is what measures or signs tell you that it is end of life?
__________________
Early 2010 E70 3.5D XDrive Msport 
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#2
03-30-2021, 11:06 AM
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Soot at your tail pipes is a good indicator from what I've read. Ours is at 166000 and is still doing it's job. I have the DPF off right now doing a trans swap (what a PITA to get it out), haven't looked into having it cleaned. Any info on who offers this service? I doubt it's a DIY type of service.
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2005 X5 4.4i Build 04/05 Maintenance/Build Log Nav, Pano, Sport (Purchased 06/14 w/ 109,000 miles) (Sold 8/15 w/121,000 miles) 2006 X5 4.8is Build 11/05 Maintenance/Build Log Nav, DSP, Pano, Running Boards, OEM Tow Hitch, Cold Weather Pckg (Purchased 08/15 w/ 90,500 miles) 2010 X5 35d Build 02/10 Nav, HiFi, 6 DVD, Sports Pckg, Cold Weather Pckg, HUD, CAS, Running Boards, Leather Dash, PDC, Pano (Purchased 03/17 w/ 136,120 miles)
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#3
03-30-2021, 04:38 PM
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The car apparently has a flag that sets around 130,000 miles but the true measure would be the differential pressure across the DPF which the car has a sensor for and can be monitored with INPA or ISTA (possible other readers as well).
__________________
2003 4.4i black ext./black int./black headliner (kid's runabout) 2014 535d X-drive, M package, silver/black interior Sold but not forgotten: 2009 E70 35d, black ext./black int./black headliner (sold 2021) 2006 4.8iS Le Mans blue/cream int./black headliner, SOLD in 2012 sadly... Other hardware: 2015 Cayenne S (wife's new DD and definitely wroooommmmm) 2016 Tundra 1794 edition crew cab, luxo hauler 2005 Tundra crew cab, weekend hauler. Sold after 150k very happy miles.
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#4
03-31-2021, 02:30 AM
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My differential pressure is erratic - about 90% of the time it is high and regens happen every 30 miles or so. I suspected the DPF pressure sensor and changed it but it could just be the DPF is clogged. Just a bit concerned why sometimes the readings are ok...
__________________
Early 2010 E70 3.5D XDrive Msport
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