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mind you it shares a similar HP fuel plumbing and injection design..

In at least the US market, the N54 engine has been characterized by a very large number of High Pressure Fuel Pump (HPFP) failures, leading to many BMW NA vehicle Lemon Law "buy backs" and reduced customer goodwill. On some engines the HPFP was replaced four times within the first few years of service.[citation needed] BMW has instituted a 10-year, 120,000-mile (190,000 km) warranty on the part, but only for 2007, 2008 and 2009 model year vehicles with the N54 engine. Other model years, to include 2009 models, continue to report HPFP failures.[10] As of late 2009, the low pressure fuel sensor has become suspected of causing some premature failures of the HPFP by engine tuners such as AMS and CP-E.

BMW tried to engineer a newer HPFP solution to eliminate HPFP issues users were having. The first 335/135s came out with 1351 7 537 320 HPFP followed shortly by 1351 7 585 655 HPFP and 2009 model had 1351 7 592 881 HPFP followed by 1351 7 596 123 HPFP. These pumps were updated and replaced again due to the high rate of failure with 1351 7 594 943 HPFP. But these also started to fail and got updated and replaced in May 2010 with a brand new re-manufactured pump 1351 7 613 933 HPFP [17]. On the 26th of October, 2010, immediately following an ABC News story about HPFP failures,[18] BMW announced a recall of vehicles with the pump in question from manufacturing years 2007-2010[19]. A class action suit has been filed against BMW regarding these problems

exactly why in the future i won't be buying any of the over complicated BMW crap they seem to be pumping out these days..

efficient dynamics? ya can shove that right up where the sun don't shine BMW!!
 

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Don't the yanks have some shockingly crap fuel, when mi bro bought one I found some simlar info. Could never find the same probs in the uk, but that was back in 2009
 

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Don't the yanks have some shockingly crap fuel, when mi bro bought one I found some simlar info. Could never find the same probs in the uk, but that was back in 2009
must be real bad its like the feckin "andromeda strain" its eating the fuel pumps before their eyes..

still piss poor tho don't see other US or import car makers avin this problem..
 

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must be real bad its like the feckin "andromeda strain" its eating the fuel pumps before their eyes..

still piss poor tho don't see other US or import car makers avin this problem..
One good thing though is there under a 10yr warranty, not very convenient but and should address the fact there a pants pump.
 

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Bmw dont make the pumps, only made to bmw spec. If they don't last the distance it's the make of the pump who fits the bill. Same years ago with bremi ign coils in n42 engines, breaking down all the time. Audi also used them and had same problem, brimi foot he bill and soon went bust and taked over by power train.
 

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Not just in the USA Doggy, many people over here have had the same problems. :thumbsup

I saw the Technical Bulletin several months ago. :hihi
 

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You think BMW diesels are bad, you try ford or vauxhall diesels.

It's the diesel particulate filters I'd worry about, makes replacing a high presure fuel pump look like pocket change. Some (across all makes that use them) are getting recalls from as little as 300 miles from new. Had customer (who bought an e46 325 off us) who's 57 plate Mazda 6 needed a new filter at £5700 and had caused all4 injectors to go bad (£700 each), presumably due to the excessive fueling when they try and regenerate thefilters...

Needless to say the car is effectively scrap Due to the cost of repair and all so it is 1 whole tax bracket lower....
 

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You think BMW diesels are bad, you try ford or vauxhall diesels.

It's the diesel particulate filters I'd worry about, makes replacing a high presure fuel pump look like pocket change. Some (across all makes that use them) are getting recalls from as little as 300 miles from new. Had customer (who bought an e46 325 off us) who's 57 plate Mazda 6 needed a new filter at £5700 and had caused all4 injectors to go bad (£700 each), presumably due to the excessive fueling when they try and regenerate thefilters...

Needless to say the car is effectively scrap Due to the cost of repair and all so it is 1 whole tax bracket lower....

where is all this eco stuff gonna leave a naturally dirty diesel engine sooner or later?

fitting expensive lumps of wizardry may help the manufacturer meet its commitments, but the owner is buying into a potential world of mundo expensive hurt and pain..
 
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