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      06-17-2010, 09:31 PM   #1
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Another HPFP failure - with BMW tech notes

Hey Folks,

I've got an '08 135i; build date May 2008; 28K miles.

So I read with trepidation all the HPFP failures. I love the car but was worried about this problem and sure enough, soon after I started to read about these failures I started to encounter symptoms. First, I got a few long cranks and start failures. This went on for several weeks and at my next service I told the adviser of the problem. They reprogrammed my car and I didn't see any problems, though it was intermittent in the first place, but I knew it would occur again. I did kind of notice somewhat slower engine speed increase but the next step occurred before I could convince myself one way or the other.

Sure enough, less than three weeks later I got some mis-fires while driving and the check-engine light came on. This would occur whenever I revved the engine above about 5K. Engine power would die and I could barely make it up even the smallest grade unless I had a pretty good head of steam going already. Sometimes the power would be worse than others.

So, I brought the car in Tuesday morning and got the car back this afternoon (Thursday). My receipt from the dealer has this text:

Customer states engine light is on please check and advise

Faulty HDP
Performed short test. Found faults 29CF, 29D0, 29DC, 29F2, 2B2C, 30FF stored in the DME. Followed N54 diag tree.
Ran test plan for low fuel pressure sensor. Test plan advised to replace HDP. Ran test plan for rail pressure sensor. Test plan advised to replace HDP. Submitted PUMA case #32292528. PUMA advised to replace HDP. Removed intake vents and intake manifold. Removed and replaced HDP.
Updated vehicle SW level.
Cleared adaptation values and performed test drive to readapt DME.
Vehicle running normal at this time.

Parts replaced are:
13-51-7-613-933 RMFD High pressure
13-53-7-582-770 ASA bolt
11-61-7-547-242 Set of profile gaskets

We'll see if it's fixed.

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      06-20-2010, 12:01 AM   #2
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Good luck. Mine started failing again too. Guess I'll be driving a new 328i loaner again this week.

-2012 VW MKVI GTI Autobahn w/ DSG (SOLD)
-2008 E82 N54 135i Coup 6MT
-2001 E46 M3 Coup 6MT (Retired)
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      06-20-2010, 09:44 AM   #3

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Originally Posted by lisnter View Post
Parts replaced are:
13-51-7-613-933 RMFD High pressure
13-53-7-582-770 ASA bolt
11-61-7-547-242 Set of profile gaskets

We'll see if it's fixed.

13-51-7-613-933 RMFD High pressure = Remanufactured??
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      06-20-2010, 10:42 AM   #4

Drives: Sedonna Red 09 135i SOLD
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Yes^^^^ #933 pump is old #880 pump rebuilt..

Maybe a better thread is one for 135i's that have not had HPFP issues..LOL..
Same old story... i just HOPE the new software with all the hardware cures this least for a year...4 months and counting on mine and all still great!!
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      06-20-2010, 10:57 AM   #5
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My recently replaced HPFP part number is #943 not #933, so what is #933?
7/08 135 Coupe, Crimson Red, 6 SP, Sport, Taupe Lette/Aluminum. Performance Mods: JB4 on Map 5, BMS DP Fix V3, Injen polished intake, AR Catless DP, Maddad resonated mid-pipes, aFe exhaust polished tips, ST Suspension Coil Over and Hotchkis front sway bar. Others: BMS OCC, BT Scanner, Mud Flap. Next Mods: AA Front Strut Brace.
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hpfp replace dealer notes

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