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E46 (1999 - 2006)
The fourth generation 3 Series (E46 chassis) was introduced in 1999 and set the standard for engineering and performance during it's years of production including being named to Car & Driver's 10 best list every one of those years! ! -- View the E46 Wiki

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  #1  
Old Today, 09:16 AM
krystal808 krystal808 is offline
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Location: hawaii
 
Join Date: May 2017
Posts: 3
Mein Auto: 325i E46 2003 m56
PLEASE all and any input needed im just a small island girl with big car problems

Ok so I've read hundreds of threads thousands of responses and ive come to the conclusion i need to ask for help....so here's my problem and im gonna make a long story as short as possible I have a 2003 325i m56 (sulev) after getting my car back from the mechanics for the third time(coolant expansion tank replacement)... it was driving nicely didn't over heat felt smooth untill i got to an incline, as soon as i started heading uphill my car started losing power untill almost completely dying then after a good 5 seconds of giving a good amount of pressure ro the gas pedal just to try to make it the rest of the way up the hill it finally kicked in i got to the flat and my car drove fine only a small hiccup (drop of rpm) at about 45mph...anyways im really confused I've changed all 6 spark plugs all 6 ignition coils new mass air flow sensor a new vacume hosee small one was cracked new vanos oil line and a few other things the mechanic did but at this point i dont know if he even did fix anything i have noticed a crackle noise i cant 100%distinguish where it's coming from but it sounds like somewhere on the front passenger side of the motor sounds almost like a marble rolling around :/ idk how to explain it and also just started making a weird noise almost like electrical or like a noise before a loud explosion maybe a humming noise? Coming from maybe sound like behind the passenger maybe like the trunk area Idk if this even sounds relevant!....anyways after taking care of the obvious issues I ran the codes on my bmw obd2 scanner and this is what came up

28AE fuel quantity control valve, activation

2761 secondary air system

OK i know it tells me what the problem its but what I need help figuring out with the symptoms im having does it sound like anything specific im just really hoping it's not my fuel pump I've got way to much invested in this car and it will be parted out if that's the case please help me find a solution
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  #2  
Old Today, 10:07 AM
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Fast Bob Fast Bob is offline
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Mein Auto: 2004 330Ci ZHP 3 pedals
Do a search for "VANOS stutter", as well as "VANOS rattle", and determine if that applies to your situation.
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  #3  
Old Today, 11:33 AM
projectguy projectguy is offline
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Join Date: Jul 2016
Posts: 5
Mein Auto:
Quote:
Originally Posted by krystal808 View Post
Ok so I've read hundreds of threads thousands of responses and ive come to the conclusion i need to ask for help....so here's my problem and im gonna make a long story as short as possible I have a 2003 325i m56 (sulev) after getting my car back from the mechanics for the third time(coolant expansion tank replacement)... it was driving nicely didn't over heat felt smooth untill i got to an incline, as soon as i started heading uphill my car started losing power untill almost completely dying then after a good 5 seconds of giving a good amount of pressure ro the gas pedal just to try to make it the rest of the way up the hill it finally kicked in i got to the flat and my car drove fine only a small hiccup (drop of rpm) at about 45mph...anyways im really confused I've changed all 6 spark plugs all 6 ignition coils new mass air flow sensor a new vacume hosee small one was cracked new vanos oil line and a few other things the mechanic did but at this point i dont know if he even did fix anything i have noticed a crackle noise i cant 100%distinguish where it's coming from but it sounds like somewhere on the front passenger side of the motor sounds almost like a marble rolling around :/ idk how to explain it and also just started making a weird noise almost like electrical or like a noise before a loud explosion maybe a humming noise? Coming from maybe sound like behind the passenger maybe like the trunk area Idk if this even sounds relevant!....anyways after taking care of the obvious issues I ran the codes on my bmw obd2 scanner and this is what came up



28AE fuel quantity control valve, activation



2761 secondary air system



OK i know it tells me what the problem its but what I need help figuring out with the symptoms im having does it sound like anything specific im just really hoping it's not my fuel pump I've got way to much invested in this car and it will be parted out if that's the case please help me find a solution


Also, change the main timing chain tensioner on the side of the block. The spring fatigues and physically shortens over time. The main timing chain can stretch which prevents the timing from advancing. The car will have no power under 3k rpm when the condition gets bad enough.
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  #4  
Old Today, 12:44 PM
u.nanimous u.nanimous is offline
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Location: SE Michigan
 
Join Date: Oct 2014
Posts: 2,860
Mein Auto: 1999 740iS, 2008 335xi
Is the fuel pump beyond warranty? I thought the SULEV had some awesome super extended warranty on the fuel system.

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2003 325i, 2761, 28ae, check engine light, m56, sulev


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