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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Whats the percentage of fuel pumps failures on 335?



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      07-23-2007, 02:32 PM   #1
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Whats the percentage of fuel pumps failures on 335?

I was wondering what the percentage of fuel pump failures on the 335

is it 1 out of 10 or is it more than that. Im closing in on 4500 miles and Im anticipating my fuel pump to blow since my car has been giving me alot of problems already.
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      07-23-2007, 02:36 PM   #2
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1% - 3%, based on fuel pump parts orders / sales of 335s. It will go higher as more 335s accumulate mileage, although it does seem to be a problem that emerges fairly early. Not many failures on cars with more than 10k miles, although the N is still small.
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      07-23-2007, 02:36 PM   #3
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Seems to be about 85%...


At least that's the perception here if you read one horror story after another, not realizing that e90 is a tiny little portion of total e9Xs on the road.

Then Figure in all the fuel pumps that Proceed, exceed, Blah Blah Blah have killed...

Pretty much I think the total for the real world is something like 4-5% or so, someone worked up the number here on the forums and that is about what you are looking at I think. Makes sense, and explains why there is no recall as of yet.

Far more concerning to me is the power steering pump pulley issue...
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      07-23-2007, 02:37 PM   #4
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      07-23-2007, 02:39 PM   #5
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Thanks is there a certain reason why some are failing and others arent ???
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      07-23-2007, 02:40 PM   #6
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Quote:
Originally Posted by wombatpower View Post
Thanks is there a certain reason why some are failing and others arent ???
No.

My guess would be time/miles and way of driving
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      07-23-2007, 02:43 PM   #7
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Yup

Quote:
Originally Posted by wombatpower View Post
Thanks is there a certain reason why some are failing and others arent ???

Poor engineering?
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      07-23-2007, 03:01 PM   #8
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Its in the single digit percentage in the USA
Its almost non-existant outside North America


Only sensible link seems to be North American fuel
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      07-23-2007, 03:06 PM   #9
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Quote:
Originally Posted by E90Fleet View Post
Its in the single digit percentage in the USA
Its almost non-existant outside North America


Only sensible link seems to be North American fuel
North America is BMW's main market and the fuel quality here should not be an afterthought.
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      07-23-2007, 03:10 PM   #10
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Maybe its because those cheap gas stations are putting additives in there gas
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      07-23-2007, 03:14 PM   #11
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Quote:
Originally Posted by audiphile View Post
North America is BMW's main market and the fuel quality here should not be an afterthought.
I have a sneaking suspicion we're going to find out that some fuel distributors have been putting more than 10% ethanol into the fuel....and thats destroying the seals in the HPFP.... it would also explain why their testing didnt reveal this, no way for them to test run the cars with all the various fuels supplied across the country.

This would also show up as more failures in states that follow CARB air standards, Cali, the northeast, etc. AFAIK, only those states require oxygenate in the gas.
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      07-23-2007, 03:16 PM   #12
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Quote:
Originally Posted by E90Fleet View Post
Its in the single digit percentage in the USA
Its almost non-existant outside North America


Only sensible link seems to be North American fuel
BAH, it's the North American Drivers!!!

The tweekers kill it with rookie software, the rest kill it by driving slow and using cheap fuel?

I dunno, I romp the shit outta my car and it's healthy as can be... (Knocking on wood)
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      07-23-2007, 03:17 PM   #13
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Quote:
Originally Posted by audiphile View Post
North America is BMW's main market and the fuel quality here should not be an afterthought.
No

USA is a big market, but not the main one
Its the biggest single market for things like the 7 Series, but not the 3, and if you add european countries together they blow the US out the water.
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      07-23-2007, 03:27 PM   #14
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Also remember its Siemens problem
They are footing the bill for their pump problems
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      07-23-2007, 03:30 PM   #15
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I wonder what's the current price on Siemens stock!?
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      07-23-2007, 03:39 PM   #16
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does anyone know the resale on a 335i is ?
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      07-23-2007, 03:47 PM   #17
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Just under MSRP, check autotrader, they are everywhere with 4-12k miles typically.
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      07-23-2007, 03:48 PM   #18
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only one has broken to date.
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      07-23-2007, 04:01 PM   #19
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BMW doesn't have a handle on this issue. Check this thread out. Even one person got the issue on 535. I am thinking of delaying buying 335 Coupe now seriously.

http://www.bimmerfest.com/forums/sho...81#post2524781
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