[hun77777]

if you didn't experience any of the symptoms, i would not temper with it. BMW still covers for 10 years 120,000 miles so unless your mileage is getting close to that figure or you are having an issue, i would just keep the original parts.

from my own experience, after getting this newer pump, all the issues i had were gone but i still see people complaining about lag and few other stuff after ecu program update. just go say no you don't want any recall and you should be good.

be sure to check transmission fluids pan which are known to leak and also tail light circuit board which also known to fail your bulbs quite a lot. gl

[AR335]

Thanks hun77777 for your reply. I really appreciate it.

Forgot to mention I have 55K miles on my 335i. If that even matters. MY SA said that although I haven't experienced any problems, the potential for any problems in the future is still there. I did read in another HPFP thread that a 335i owner didn't experience any problems until he hit 62K miles. Still up in the air about it.

Thanks again for your feedback.

AR335

[Raman335i]

I've heard stories about the dealers reflashing the ECU, resulting in a much slower acceleration/throttle response and just an overall more laggy drive. Has anyone else experienced this? I'm afraid of going in to get my HPFP replaced, I haven't had any problems with it whatsoever.

If it ain't broke, don't fix it?

[98005xi]

Originally Posted by hun77777

if you didn't experience any of the symptoms, i would not temper with it. BMW still covers for 10 years 120,000 miles so unless your mileage is getting close to that figure or you are having an issue, i would just keep the original parts.

from my own experience, after getting this newer pump, all the issues i had were gone but i still see people complaining about lag and few other stuff after ecu program update. just go say no you don't want any recall and you should be good.

be sure to check transmission fluids pan which are known to leak and also tail light circuit board which also known to fail your bulbs quite a lot. gl

Hey bro. The lag I get when starting from a stop on the gas peddle is definitely noticeable. Even my wife notices it - it's there. Also when stomping on it to get to passing speed, there's a "barely there" wait for the turbo to spool up now.

I don't have hard #s, but this is just my impression after having driven the car now for 1 month since my appointment. I'm not frustrated about it, but it's something to consider when driving nowadays.

I'm anal about being smooth when I'm driving, especially on acceleration and braking. But it's very hard to start smoothly now because that slight lag makes me anticipate the gas peddle differently.

[hun77777]

Originally Posted by AR335

Thanks hun77777 for your reply. I really appreciate it.

Forgot to mention I have 55K miles on my 335i. If that even matters. MY SA said that although I haven't experienced any problems, the potential for any problems in the future is still there. I did read in another HPFP thread that a 335i owner didn't experience any problems until he hit 62K miles. Still up in the air about it.

Thanks again for your feedback.

AR335

Originally Posted by Raman335i

I've heard stories about the dealers reflashing the ECU, resulting in a much slower acceleration/throttle response and just an overall more laggy drive. Has anyone else experienced this? I'm afraid of going in to get my HPFP replaced, I haven't had any problems with it whatsoever.

If it ain't broke, don't fix it?

SA do what they have to do on their computer screen but when extended warranty covers all the way up to 10 years, 120,000 miles, why bother with perfectly working parts? i would just leave it alone. hpfp failure is not something that's fatal like brake pedal failure from toyota. once it starts to give it up, you will notice it right away, especially from cold start.

as far as ecu flash goes, although you have no issue with hpfp or any power train related issue, to fix some other area, dealer might have to perform the ecu flash, such as navigation or i-drive related, etc. in my personal experience, some of the past ecu flash did cause some lagginess (word?) and changed the way car drives for my liking (not particularly good or bad in my case, it's just different) so if you don't want any changes at all, tell them NOT TO update your ecu.

Originally Posted by 98005xi

Hey bro. The lag I get when starting from a stop on the gas peddle is definitely noticeable. Even my wife notices it - it's there. Also when stomping on it to get to passing speed, there's a "barely there" wait for the turbo to spool up now.

I don't have hard #s, but this is just my impression after having driven the car now for 1 month since my appointment. I'm not frustrated about it, but it's something to consider when driving nowadays.

I'm anal about being smooth when I'm driving, especially on acceleration and braking. But it's very hard to start smoothly now because that slight lag makes me anticipate the gas peddle differently.

car definitely does react differently although in my case, change was minimal maybe due to my procede which able to control few of those variables.

[thwgw24]

Originally Posted by hun77777

car definitely does react differently although in my case, change was minimal maybe due to my procede which able to control few of those variables.

I was gonna say, with the tune, I didn't really feel any changes.

[AR335]

Thanks again.

There is a point in what Raman335i said: If it ain't broke, don't fix it?
Don't know why this is hounding me. I'm scheduled to take my car in tomorrow morning. I'll let you guys know one way or another what I decided on.

If I decide to go with the replacement, I'm wondering which HPFP I will get. Found these part numbers. Both parts numbers incorporate the same level of HDP quality improvements:
(P/N 13 51 7 613 933)
(P/N 13 51 7 616 446)

-446 pumps are the new design
-933 models are remanufactured with the upgrades, came out in May 2010

AR335

[hun77777]

the one i got from the bmw seattle couple months back was 446 pump which was considerably the latest design that "supposedly" fixed all the previous hpfp issue which bmw announced it to be for million and second times in the past.... so far so good but only time will tell...

[gsmurf]

I just got the 446 as well.

[Raman335i]

does your car feel the same as before?

[hun77777]

power delivery is same. just annoying cold start issue is gone as it should...

[AR335]

Well, I caved-in and took my 335i for the HPFP replacement after all. I received the 446 model, which is the new design. Didn't receive any software (ECU) updates/reflash since, according to my SA, I was already up-to-date. Around eight months ago, I had the wastegate rattle problem and so they fixed it. Fixing it included running a software update. So I guess when they hooked-up my 335i for the update after replacing the HPFP, it noted that I was already up-to-date. I currently have the E89x-10-03-502 version.

So far, so good. Only noticeable difference is the steady idle at 6K RPMs when my car is at a stand still. Before I noticed, but not always, it would idle erratically between 6K - 8K RPMs. Didn't think it was a big deal, but now it's an even, steady 6K RPMs.

Interesting tidbit, while riding in the courtesy shuttle bus, another guy had brought has 535i for the HPFP replacement. His bad experience involved while driving to Las Vegas when it was 120 degrees. His car stalled and kicked-in into limp (safe) mode. So I guess the true test is to drive to Vegas when it's scorching hot and see if the HPFP fails.

It's only been a couple days so I'll keep you guys posted as time goes on.

Keep it under 100 MPH !!

AR335

[hun77777]

Originally Posted by AR335

Well, I caved-in and took my 335i for the HPFP replacement after all. I received the 446 model, which is the new design. Didn't receive any software (ECU) updates/reflash since, according to my SA, I was already up-to-date. Around eight months ago, I had the wastegate rattle problem and so they fixed it. Fixing it included running a software update. So I guess when they hooked-up my 335i for the update after replacing the HPFP, it noted that I was already up-to-date. I currently have the E89x-10-03-502 version.

So far, so good. Only noticeable difference is the steady idle at 6K RPMs when my car is at a stand still. Before I noticed, but not always, it would idle erratically between 6K - 8K RPMs. Didn't think it was a big deal, but now it's an even, steady 6K RPMs.

Interesting tidbit, while riding in the courtesy shuttle bus, another guy had brought has 535i for the HPFP replacement. His bad experience involved while driving to Las Vegas when it was 120 degrees. His car stalled and kicked-in into limp (safe) mode. So I guess the true test is to drive to Vegas when it's scorching hot and see if the HPFP fails.

It's only been a couple days so I'll keep you guys posted as time goes on.

Keep it under 100 MPH !!

AR335

you must meant 600 rpm @ idle. 6k is almost WOT. lol

i've been over 150 mph after pump replacement on "somehwere in mexico" and it worked just fine...

[AR335]

My bad. Yes, 600 RPMs.

150 MPH ?!? Holy crap ! The fastest I've gone on my 335i is 80 MPH. My friends make fun of me, saying I drive my car like a grandmother. When I picked-up my car after getting the HPFP replaced, I was talking to one of the sales guys. I told him about my situation and hesitation. He said the reason why I haven't experienced any problems is because I don't drive my car hard. He said the fuel pump is divided into two pumps. The higher pump is for fast and hard acceleration and speeds over 70 MPH. The lower pump is for normal, smooth driving under 70 MPH. He said because my 335i hardly ever uses the higher pump, I will more than likely never experience any problems.

AR335

[goowatchi]

Originally Posted by AR335

My bad. Yes, 600 RPMs.

150 MPH ?!? Holy crap ! The fastest I've gone on my 335i is 80 MPH. My friends make fun of me, saying I drive my car like a grandmother. When I picked-up my car after getting the HPFP replaced, I was talking to one of the sales guys. I told him about my situation and hesitation. He said the reason why I haven't experienced any problems is because I don't drive my car hard. He said the fuel pump is divided into two pumps. The higher pump is for fast and hard acceleration and speeds over 70 MPH. The lower pump is for normal, smooth driving under 70 MPH. He said because my 335i hardly ever uses the higher pump, I will more than likely never experience any problems.

AR335

Can anyone verify what the "sales guy" said?

[hun77777]

that salesman doesn't know crap. hpfp for higher speed? hahaha i knwo sales people will bs about anything to make it sounds good to their potential customers but often times they don't even know about what they are selling.

[goowatchi]

Originally Posted by hun77777

that salesman doesn't know crap. hpfp for higher speed? hahaha i knwo sales people will bs about anything to make it sounds good to their potential customers but often times they don't even know about what they are selling.

Can anyone confirm what hun7777 said about the "sales guy"?

j/k. I had a feeling that was a bogus statement.

[troye]

HPFP replaced last week, no noticeable change from before.
2009 335 E93

[space227]

I have 07 335I ... Went in for brake service and they said there was a HPFP recall. I mentioned that i was getting off/on half engine light when getting passing speed etc. He said the HPFP might be the cause, well since having it replaced i am getting it more often, 2 times just this weekend. Going back in for service, anyone else have issue since replacement or have any suggestions of what else it might be?

[AR335]

Since getting the HPFP replaced last week I got gonged with the check engine light. I wasn't speeding as I was cruising in a residential street when it happened. Prior to getting the HPFP replaced I got gonged three times so there's something go on, or gone wrong that may have nothing to do with the HPFP. May need to get on another thread involving check engine light displaying.

AR335

[335togo]

Yes ...just had it done Wed at BMW Northwest...my second pump...got the letter from Corp in the mail and made the appointment...went smooth and car seems better...starts instantly in the morning which it didn't prior...they claimed its a new design at least they changed the part number

[gsmurf]

Originally Posted by AR335

Since getting the HPFP replaced last week I got gonged with the check engine light. I wasn't speeding as I was cruising in a residential street when it happened. Prior to getting the HPFP replaced I got gonged three times so there's something go on, or gone wrong that may have nothing to do with the HPFP. May need to get on another thread involving check engine light displaying.

AR335

I have not seen any CEL on my car yet (fingers crossed), but my car iddles at around 650 RPM before and after HPFP recall and software update. There was only one time I saw it settle on 600 rpm after I was driving the car really hard testing for lag. I also notice the engine a lot smoother at 600 RPM, it went back to 650 RPM the next day. I'm not sure if it has anything to do with my car being 6spd manual.