HPFP Replacement at Home

BrianMN · 11-13-2010, 01:25 PM

Hi Guys, The purpose of this post is to convey the simplicity and benefit of replacing one's own HPFP at home rather than bringing into the dealer for, those who are heavily modded and don't feel like putting in the work to go back to stock.

So my HPFP gave out on Thursday. I absolutely did not want to take the many hours putting my car back to stock to bring it into the dealership (plus I've found dealer techs are the biggest hacks and strip bolts/scratch a lot too)...so I figured I'd just bite the $220 cost of the new HPFP and do it myself. It was a very simple job... but really cuts your hands up. Eric@AMS put together a very nice And detailed DIY. I veered from the diy in taking the intake manifold off completely and document the carbon on the valves...which was A LOT.

A couple notes:

The majority of this job is just taking many parts off to get at the HPFP. Further, taking the intake manifold completely off opens up a lot of room. The difficult part is getting at and taking off three T25 torx screws underneath the manifold that holds on a few sensor connectors. It was a complete bitch...but the right amount of swearing and arthritis will get the job done. In hindsight, it probably would've been easier to disconnect the 8 or so connectors, but those are also tricky.

Valves and ports were covered with carbon.. not to the point where I'm too worried, but just enough to be bothersome. I wasn't able to get a clean picture. ** I had Seafoam'd it 3x 7,000 miles ago, 3x 3,000 miles ago.

As far as I know, there is no coding needed. I simply put it on, and it work as new. No resets to any adaptations, however that would never hurt.

All in all I spent roughly 2.5 hours on this, taking tons of time cleaning the engine bay, polishing the charge pipe, putting band-aids on my fingers, etc. If I were to do it again it would probably be around an hour.

I was expecting the first crank to take a while to build pressure, but no, it fired almost instantly! Having gotten used to longer cranks, it is almost strange how fast it starts now, haha.

So for those of you guys that are modded and don't want to bring it into the dealer, don't hesitate to do this job yourself. In reality it's only a $220 part, and can be done in an afternoon...totally worth it to avoid the dealership.

Happy motoring!

Edit: Here is the link to Eric@AMS' DIY http://www.amsperformance.com/instru.../BMWHPFDIY.pdf

chazzz · 11-13-2010, 01:39 PM

Wouldn't it be much easier to bring it back to stock and have the dealer to do a lot of work in replacing HPFP for you (under the warranty)?

Anyway, congrats for doing your own work and got it up and running!!

blisstik · 11-13-2010, 01:40 PM

Time for an oil catch can?

Tiago@VRSF · 11-13-2010, 02:01 PM

Believe it or not it's 100x easier to just remove the harness box from the metal bracket and remove the intake manifold together with the bracket. I just did this a couple days ago to repair a manifold that had a broken vacuum nipple

BrianMN · 11-13-2010, 02:16 PM

Quote:

Originally Posted by chazzz

Wouldn't it be much easier to bring it back to stock and have the dealer to do a lot of work in replacing HPFP for you (under the warranty)?

Anyway, congrats for doing your own work and got it up and running!!

That's what I'm addressing with this post...it is NOT easier to bring it back to stock. I figure it will take me apx. 12-15 hours to put the car back to stock, and the same 12-15 hours to put everything back on. Plus, it would take a pretty incompetent tech to not find any evidence of being modded.

Quote:

Originally Posted by blisstik

Time for an oil catch can?

Haha I did have one on for 10,000 miles but never had a drop of oil in it so I took it out.

Quote:

Originally Posted by tvieira24

Believe it or not it's 100x easier to just remove the harness box from the metal bracket and remove the intake manifold together with the bracket. I just did this a couple days ago to repair a manifold that had a broken vacuum nipple

Yep, realized that after having it off.

Slidewayz · 11-13-2010, 02:45 PM

This is great, thank you.

JBiddy · 11-13-2010, 04:49 PM

Dont you have to do programing for the hpfp?

Iwantm3 · 11-13-2010, 05:13 PM

new hpfp is only $220 ?

PeteW84 · 11-13-2010, 05:34 PM

Quote:

Originally Posted by JBiddy

Dont you have to do programing for the hpfp?

Good question...

BrianMN · 11-13-2010, 05:42 PM

No programming needed...at least I didn't do any programming and it's working perfectly.

Ilma · 11-13-2010, 06:59 PM

Quote:

Originally Posted by BrianMN

No programming needed...at least I didn't do any programming and it's working perfectly.

How about your adaptations re air/fuel etc?

Did you try resetting any of them.

robbie211 · 11-13-2010, 07:11 PM

this will be helpful for those who are modified.

BrianMN · 11-13-2010, 07:28 PM

Quote:

Originally Posted by Ilma

How about your adaptations re air/fuel etc?

Did you try resetting any of them.

No, Didn't reset anything. It just works.

BrianMN · 11-13-2010, 09:04 PM

Quote:

Originally Posted by Iwantm3

new hpfp is only $220 ?

Yeah I was kinda surprised too. It was like $276 with a $50 core charge.

Enicinitas · 11-13-2010, 10:14 PM

Thanks for posting this BrianMN, good stuff!

scrufy · 11-13-2010, 11:42 PM

Quote:

Originally Posted by chazzz

Wouldn't it be much easier to bring it back to stock and have the dealer to do a lot of work in replacing HPFP for you (under the warranty)?

Anyway, congrats for doing your own work and got it up and running!!

WOW...
do you actually read the post?
OP:
Brian, hey nice post!
I didn't know it was that quick...
Might just do it myself next time.
thanks!

BrianMN · 11-13-2010, 11:58 PM

Thanks for the kind words guys!

Scrufy- It really is that quick and easy. Like I said above, the second time doing it would go super fast. Just take everything off and put it back on! I'll probably try to make a record next time, haha (hopefully there isn't a next time).

Chefcg1 · 11-14-2010, 07:32 AM

good write up, I was considering this myself, but where did you get the HPFP that cheap?

Juiced46 · 11-14-2010, 09:53 AM

There is absolutely no reason to remove the intake manifold. Remove the air box, charge pipe and throttle body and thats it. The sensor box you can just bend it up by hand and this will give you plenty of room to get the 3 5mm hex bolts that hold the pump on. A long 5mm ball-hex 1/4 socket will do the trick to reach in there. You can see the back bolt if you look straight down through the intake manifold.

vasillalov · 11-14-2010, 10:00 AM

Good stuff! It is indeed not that hard at all.

One thing I did notice: the HPFP is mounted via aluminum bolts. Those must be replaced each time they are removed.

scottp999 · 11-14-2010, 10:12 AM

Very good information. Thank you!

zeenon53 · 11-14-2010, 10:23 AM

Thanks for the post. Seeing this is making me more comfortable in modding my car. I thought a HPFP would be over 1K being a BMW. Now that I know it is under 300 I might have to buy a tune

11-13-2010, 01:25 PM	#1
BrianMN Banned 116 Rep 2,428 Posts Drives: 4 Door Family Sedan Join Date: Sep 2009 Location: Minneapolis iTrader: (7)	HPFP Replacement at Home Hi Guys, The purpose of this post is to convey the simplicity and benefit of replacing one's own HPFP at home rather than bringing into the dealer for, those who are heavily modded and don't feel like putting in the work to go back to stock. So my HPFP gave out on Thursday. I absolutely did not want to take the many hours putting my car back to stock to bring it into the dealership (plus I've found dealer techs are the biggest hacks and strip bolts/scratch a lot too)...so I figured I'd just bite the $220 cost of the new HPFP and do it myself. It was a very simple job... but really cuts your hands up. Eric@AMS put together a very nice And detailed DIY. I veered from the diy in taking the intake manifold off completely and document the carbon on the valves...which was A LOT. A couple notes: The majority of this job is just taking many parts off to get at the HPFP. Further, taking the intake manifold completely off opens up a lot of room. The difficult part is getting at and taking off three T25 torx screws underneath the manifold that holds on a few sensor connectors. It was a complete bitch...but the right amount of swearing and arthritis will get the job done. In hindsight, it probably would've been easier to disconnect the 8 or so connectors, but those are also tricky. Valves and ports were covered with carbon.. not to the point where I'm too worried, but just enough to be bothersome. I wasn't able to get a clean picture. ** I had Seafoam'd it 3x 7,000 miles ago, 3x 3,000 miles ago. As far as I know, there is no coding needed. I simply put it on, and it work as new. No resets to any adaptations, however that would never hurt. All in all I spent roughly 2.5 hours on this, taking tons of time cleaning the engine bay, polishing the charge pipe, putting band-aids on my fingers, etc. If I were to do it again it would probably be around an hour. I was expecting the first crank to take a while to build pressure, but no, it fired almost instantly! Having gotten used to longer cranks, it is almost strange how fast it starts now, haha. So for those of you guys that are modded and don't want to bring it into the dealer, don't hesitate to do this job yourself. In reality it's only a $220 part, and can be done in an afternoon...totally worth it to avoid the dealership. Happy motoring! Edit: Here is the link to Eric@AMS' DIY http://www.amsperformance.com/instru.../BMWHPFDIY.pdf Attached Images Last edited by BrianMN; 11-19-2010 at 03:02 PM..
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11-13-2010, 01:39 PM	#2
chazzz Captain 121 Rep 712 Posts Drives: 2018 Chrysler 300S Join Date: Sep 2007 Location: Southern California iTrader: (4)	Wouldn't it be much easier to bring it back to stock and have the dealer to do a lot of work in replacing HPFP for you (under the warranty)? Anyway, congrats for doing your own work and got it up and running!! __________________ SOLD - 2007 BMW 335i Sedan, Montego Blue with Lemon seats, AluFelgen CS7 rims & Continental DW tires CURRENT - 2018 Chrysler 300S, Crystal Granite Metallic.
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11-13-2010, 01:40 PM	#3
blisstik Lieutenant Colonel 158 Rep 1,677 Posts Drives: E92 Join Date: Jul 2009 Location: California iTrader: (14)	Time for an oil catch can?
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11-13-2010, 02:01 PM	#4
Tiago@VRSF 2108 Rep 43,350 Posts Drives: F90 M5 Join Date: Dec 2007 Location: Doral, FL iTrader: (99) Garage List 2014 F30 328xi [0.00] 2015 F82 BMW M4 [0.00] 2013 Ducati 1199 Pa ... [0.00] 2008 BMW 335i [0.00]	Believe it or not it's 100x easier to just remove the harness box from the metal bracket and remove the intake manifold together with the bracket. I just did this a couple days ago to repair a manifold that had a broken vacuum nipple
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11-13-2010, 02:45 PM	#6
Slidewayz Major 37 Rep 1,177 Posts Drives: 2007 335i Join Date: Jan 2009 Location: Oakland, CA iTrader: (5)	This is great, thank you.
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11-13-2010, 04:49 PM	#7
JBiddy Brigadier General 201 Rep 3,840 Posts Drives: F82 ///M Join Date: Apr 2008 Location: Northern/N.J iTrader: (9)	Dont you have to do programing for the hpfp? __________________ ///M
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11-13-2010, 05:13 PM	#8
Iwantm3 Banned 38 Rep 1,284 Posts Drives: 335i M sport Join Date: Mar 2009 Location: US AND A I likeeeee iTrader: (1)	new hpfp is only $220 ?
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11-13-2010, 05:42 PM	#10
BrianMN Banned 116 Rep 2,428 Posts Drives: 4 Door Family Sedan Join Date: Sep 2009 Location: Minneapolis iTrader: (7)	No programming needed...at least I didn't do any programming and it's working perfectly.
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11-13-2010, 07:11 PM	#12
robbie211 Captain 43 Rep 819 Posts Drives: E90 335i, E36 M3 Join Date: Mar 2006 Location: OC iTrader: (16) Garage List 2007 335i [6.76]	this will be helpful for those who are modified.
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11-13-2010, 10:14 PM	#15
Enicinitas First Lieutenant 13 Rep 322 Posts Drives: Gray Coupe Join Date: Feb 2010 Location: Left Coast iTrader: (8)	Thanks for posting this BrianMN, good stuff!
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11-13-2010, 11:58 PM	#17
BrianMN Banned 116 Rep 2,428 Posts Drives: 4 Door Family Sedan Join Date: Sep 2009 Location: Minneapolis iTrader: (7)	Thanks for the kind words guys! Scrufy- It really is that quick and easy. Like I said above, the second time doing it would go super fast. Just take everything off and put it back on! I'll probably try to make a record next time, haha (hopefully there isn't a next time).
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11-14-2010, 07:32 AM	#18
Chefcg1 Major 72 Rep 1,137 Posts Drives: 2008 BMW 335i Join Date: Apr 2009 Location: Mount Airy, NC iTrader: (6)	good write up, I was considering this myself, but where did you get the HPFP that cheap? __________________ 2008 335i coupe AW 6AT, RB Turbos, PROcede 2.5 V5, Alpina Flash, Injen Intake, VK MW DP . Helix IC, Vishnu PnP Meth(M10 nozzel), M3 sides, OEM Aero Lip, VMR V710 Midnight Blue, LUX H8, HID Fogs, M3 front bits, D2 Coilovers, Whiteline Rear Bushing inserts, Custom M3 Steering Wheel, Cyba scoops, M2 Performance Exhaust
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11-14-2010, 09:53 AM	#19
Juiced46 Major 79 Rep 1,035 Posts Drives: 03 Turbo Cobra, 2011 335xi Join Date: Jun 2010 Location: Wallingford CT iTrader: (3)	There is absolutely no reason to remove the intake manifold. Remove the air box, charge pipe and throttle body and thats it. The sensor box you can just bend it up by hand and this will give you plenty of room to get the 3 5mm hex bolts that hold the pump on. A long 5mm ball-hex 1/4 socket will do the trick to reach in there. You can see the back bolt if you look straight down through the intake manifold.
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11-14-2010, 10:00 AM	#20
vasillalov Mad Linux Guru On The Loose 1195 Rep 5,455 Posts Drives: 2008 335i Sedan, 2023 M3 Join Date: Aug 2009 Location: Chicago, IL iTrader: (5) Garage List 2023 BMW M3 [0.00] 2008 335i E90 [8.00]	Good stuff! It is indeed not that hard at all. One thing I did notice: the HPFP is mounted via aluminum bolts. Those must be replaced each time they are removed. __________________
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11-14-2010, 10:12 AM	#21
scottp999 Brigadier General 136 Rep 4,764 Posts Drives: 4runner SR5 Join Date: Mar 2007 Location: MD iTrader: (2) Garage List 2007 BMW 335 [9.00]	Very good information. Thank you!
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11-14-2010, 10:23 AM	#22
zeenon53 Major 44 Rep 1,155 Posts Drives: BMW Join Date: Apr 2010 Location: obx iTrader: (3)	Thanks for the post. Seeing this is making me more comfortable in modding my car. I thought a HPFP would be over 1K being a BMW. Now that I know it is under 300 I might have to buy a tune
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