Need Confirmation - Is N55 free of HPFP Issue?

So anyone know that the 2011 and Up models, particularly the 135i and 335i, are free of HPFP (High Pressure Fuel Pump) issue? We know the N54 is designed to have HPFP problems but what about N55? Problem gone?

And is the car overall reliable?

Thanks,

Originally Posted by mazdaspeed3KING

We know the N54 is designed to have HPFP problems

Would you care to provide a reference for that assertion?

Tom

Originally Posted by Tom K.

Would you care to provide a reference for that assertion?

Tom

Well, at least that is my assumption. Since just about all N54 135i/335i's are getting HPFP failures the manufacturer would have to design it to make it fail.. If not, then this problem should be non-existent, well except for due to wear after 100k miles.

Sorry if my assumption was a bit offending. You guys are way cooler than the Nissan and Honda forums. They are absolute crap...

So N55 version no longer has HPFP issue, right?

thanks!

There have been reports of N55 HPFP failures - check both the 1 and 3 series forums. But since (unfortunately) there are no available statistics on either N54 or N55 fuel pump problems, no one outside of BMW has any idea how many units are affected.

So I don't understand how you can assume it was designed as a faulty part.

Tom

I'd say it's LIKELY the problem has gone away, but not definitively. There have been reports of HPFP failures, that's true... but generally I would say the amount of posts I see on that subject are about in-line with the number of failures you'd typically expect from any manufactured product. It happens.

However, the N55 is new. That means there just aren't that many out there relatively speaking and so stats aren't really terribly easy to come by. I mean, how long after the N54 did we start hearing serious rumblings? 18 months to 2 years judging by my admittedly rather faulty memory. There may have been a few before then that we could attribute to HPFP failure in hindsight, but again; nothing definitive.

Me, I'm getting my 135i in a month and just not worrying about it. If it fails, BMW will fix it. Plain and simple... and to be honest that's about as good as you can get with ANY car.

Originally Posted by Tom K.

So I don't understand how you can assume it was designed as a faulty part.

Tom

I take back what I said. It was my sarcasm.... I admit.

Originally Posted by thumper_330

I'd say it's LIKELY the problem has gone away, but not definitively. There have been reports of HPFP failures, that's true... but generally I would say the amount of posts I see on that subject are about in-line with the number of failures you'd typically expect from any manufactured product. It happens.

However, the N55 is new. That means there just aren't that many out there relatively speaking and so stats aren't really terribly easy to come by. I mean, how long after the N54 did we start hearing serious rumblings? 18 months to 2 years judging by my admittedly rather faulty memory. There may have been a few before then that we could attribute to HPFP failure in hindsight, but again; nothing definitive.

Me, I'm getting my 135i in a month and just not worrying about it. If it fails, BMW will fix it. Plain and simple... and to be honest that's about as good as you can get with ANY car.

Thanks for the insight!

Originally Posted by mazdaspeed3KING

I take back what I said. It was my sarcasm.... I admit.

Thanks. As a BMW owner for over 15 years, I hate to see resale values slip because folks read that BMW's are unreliable - especially by design.

While I prefer the driving characteristics of BMW's normally aspirated I6 to the turbo, I wouldn't eliminate the 135i or 335i from consideration because of the HPFP, as BMW has certainly stepped up to the plate with extended warranties and recalls.

I hope you find the Bimmer you want - you'll enjoy it.

Tom

Originally Posted by mazdaspeed3KING

So anyone know that the 2011 and Up models, particularly the 135i and 335i, are free of HPFP (High Pressure Fuel Pump) issue? We know the N54 is designed to have HPFP problems but what about N55? Problem gone?

And is the car overall reliable?

Thanks,

Designed to have HPFP failures?????

I think the issue has been mostly solved. Not to say that any component of a car might not fail. I will tell you, as a former 335i owner that experienced a HPFP failure, it wasn't as significant of an issue as the forum makes it out to be. My car had symptoms, I took it in the next day and had it back that evening. Don't let all the drama deter you.

What made it a minor issue for me, like almost any issue, is that I took it to the dealer right away and had it addressed. I didn't drive the car around for a week hoping it would go away. I'm always amazed when some x35 owner talked about symptoms appearing and then four+ days later they were trying to decide if they should take it to the dealer. Some things you can wait to address, this is not one of them.....

N54 engine owners should have received the following letter from BMW.

extended HPFP warranty 10 years or 120,000 miles, whichever comes first.

http://www.bimmerfest.com/forums/sho...d.php?t=395333

Thanks to (ilhambirkan) for posting this letter. My son received the letter for his 2009 135i convertable.

I would think that if the N55 engine has HPFP failures down the line BMW would also extend the warranty just like on they did on N54 engine.

Originally Posted by Tom K.

Would you care to provide a reference for that assertion?

Tom

The HPPF was recalled.

Originally Posted by Tom K.

Thanks. As a BMW owner for over 15 years, I hate to see resale values slip because folks read that BMW's are unreliable - especially by design.

While I prefer the driving characteristics of BMW's normally aspirated I6 to the turbo, I wouldn't eliminate the 135i or 335i from consideration because of the HPFP, as BMW has certainly stepped up to the plate with extended warranties and recalls.

I hope you find the Bimmer you want - you'll enjoy it.

Tom

You care about resale BMW does not or they would not unleash this N54 HPFP on the public. Unfortunately the love affair is one sided. There's nothing wrong with that!!!

Troll.

Originally Posted by jammat

The HPPF was recalled.

And that proves it was designed to fail?

Please provide your source, not your non-existent logic.

Tom

Originally Posted by Tom K.

And that proves it was designed to fail?

Please provide your source, not your non-existent logic.

Tom

Open your mind, wether it was by design or failure of design does not matter, it failed and they could not adjust the design to prevent a recall, so it was by design. My source is the fact that they could not fix a faulty design that needed a recall. The most important source though are the hundreds of people who almost got killed when this thing failed on the highway.

Originally Posted by jammat

Open your mind, wether it was by design or failure of design does not matter, it failed and they could not adjust the design to prevent a recall, so it was by design. My source is the fact that they could not fix a faulty design that needed a recall. The most important source though are the hundreds of people who almost got killed when this thing failed on the highway.

A design failure by accident is a different matter than a design failure by intent. If it were the latter, you would see class action suits being successfully prosecuted against BMW which has not been the case.

Also, was this BMW's design or that of a supplier such as Bosch?

And your source for the "hundreds of people who almost got killed"? Every report I've read has the car going into limp mode with reduced power - certainly an annoyance but hardly life endangering. Exactly how many HPFP related fatalities have there been?

Tom

Originally Posted by mazdaspeed3KING

So anyone know that the 2011 and Up models, particularly the 135i and 335i, are free of HPFP (High Pressure Fuel Pump) issue? We know the N54 is designed to have HPFP problems but what about N55? Problem gone?

And is the car overall reliable?

Thanks,

The latest revised HPFP for the N54 and N55 are the same part number: http://www.realoem.com/bmw/partxref....ur=&series=E82
So any N54 with a warranty replaced pump #13517616170 will have the same HPFP failure rate as the N55 cars with the same pump from the factory.

Originally Posted by jammat

Open your mind, wether it was by design or failure of design does not matter, it failed and they could not adjust the design to prevent a recall, so it was by design. My source is the fact that they could not fix a faulty design that needed a recall. The most important source though are the hundreds of people who almost got killed when this thing failed on the highway.

Point one, check your use of logic. You are not making a valid argument. Just for your reference, the definition of "by design" is with intention. You might want to consider that before you continue your position.

Point two, "hundreds of people that almost got killed?" Do you have any specific source for this or is this just speculation? If you take this as fact, then why are you interested in the car?

Is the HPFP failure a pita, yes. Has it been fixed to the extent that it won't die any more often than any other part? It appears so to me. IMHO it was overblown in terms of the numbers. Of course BMW does not help by not releasing the numbers, but to read forums and the media you would think it had a 50% fail rate. I don't know the failure rate is but my guess is less than 5% on the old HPFP and a lot less than that on the new model. N4S