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General E46 Forum
This is the place to get answers, opinions and everything you need related to your E46 (sedan, coupe, convertible and wagon) BMW!

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Old 08-28-2011, 10:00 PM   #21
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i put money on the fuel pump
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Old 08-28-2011, 10:06 PM   #22
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Quote:
Originally Posted by southpaw View Post
Fuel pump. Starter. Battery. Or best of all, EWS.
Care to explain about EWS? I did have a EWS code that I didn't really pay attention to. The car was running fine with that code on...

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I really like those rims do you know what style they are?
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why does the fuel pump fail so often on these cars... last year during the chicago blizzard died in the middle of the freeway driving back after a 30hr surgical call with no sleep
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Cereally sucks OP..But if you paid more attention to minor details, this wouldn't have happened.

Even if the fuel pump in e46 is 'electric' type fuel pump, it does show symptoms of failure. I've been doing part-time mobile mechanic job in summer break, seen two cars strangely won't start occasionally.

First car, luckily, I noticed that there was no hissing noise on accessory position. Tried again, fuel pump made hissing noise, then started. This guy was high school student and low on budget, he decided to buy parts only and fix it later. After two months he called me and said, car wouldn't start and pump won't make hissing noise at all. I went there and replaced fuel pump, car came back to life. Second car had similar symptom, I checked everything and recommended her to replace fuel pump. I never heard back from her again..Hope that fixed the problem lol

It's not easy to pay attention to every small detail everytime, you'll have to be lucky to catch one. But next time when something abnormal happens, do suspect and do check.

I can hear the fuel pump whrr and make the noise it normally makes.
The mechanic said the spark plugs arn't firing so he will check out the crankshaft sensor...He went to NAPA to get a replacement but they sold him a broken one, so he will be going back tomorrow.
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Old 08-28-2011, 10:08 PM   #23
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How long are fuel pumps expected to last?
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Old 08-28-2011, 10:19 PM   #24
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why does the fuel pump fail so often on these cars...
Because they're old?

(Having mine replaced currently)
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Old 08-28-2011, 10:53 PM   #25
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Because overheat
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Old 08-28-2011, 11:15 PM   #26
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It begins...

EWS fvcked me in my ass.
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Old 08-28-2011, 11:19 PM   #27
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I always hate these threads because usually 2-3 weeks from reading this, my car somehow finds out and then decides to follow suit.

good luck op
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Old 08-28-2011, 11:24 PM   #28
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I had to replace the fuel pump/filer and spark plugs on mine. Hopefully its spark plugs or something even cheaper
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Old 08-28-2011, 11:46 PM   #29
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It begins...

EWS fvcked me in my ass.
More info please?

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Old 08-29-2011, 12:39 AM   #30
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EWS is BMW's Drive away protection.

It literally makes it impossible for someone to hotwire your car.

When my M3 had those issues, I pretty much memorized this whole thing.

http://www.computersolutions*****blog...02/BMW_EWS.pdf
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Old 08-29-2011, 01:19 AM   #31
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Care to explain about EWS? I did have a EWS code that I didn't really pay attention to. The car was running fine with that code on...



v710 by VMR






I can hear the fuel pump whrr and make the noise it normally makes.
The mechanic said the spark plugs arn't firing so he will check out the crankshaft sensor...He went to NAPA to get a replacement but they sold him a broken one, so he will be going back tomorrow.
my money is on the crank sensor or one of the 2 cam sensors. If you hook the car up to a GT1 it will have an error logged for it. I had the same issue and replaced the crank sensor and never missed a beat. You can see a hair line crack on the old sensor. So can be visually confirmed too most of the time.
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Old 08-29-2011, 05:33 AM   #32
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More info please?

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My no start was intermittent and due to a reversed wire in the EWS module. You have a code however, I didn't. So with a new module it still would not start. On top of that, the DME had wiring issues as well. Yours is probably not as extent, but the code being there is helpful when whoever is looking at your car does scan it.
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Old 08-29-2011, 11:17 AM   #33
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Because they're old?

(Having mine replaced currently)
No. This happened on my 2005 325i wih 71000mi. Fuel filters changed at regular intervals and always filled with premium. There's no reason why the the fp should crap out under those sort of conditions.
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Old 08-29-2011, 05:25 PM   #34
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So I heard back and it turns out that it still won't start after new crank sensor...fuel pressure is normal and such...

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Old 08-29-2011, 06:03 PM   #35
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So I heard back and it turns out that it still won't start after new crank sensor...fuel pressure is normal and such...

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Normal fuel pressure means your fuel pump is fine. How about the cam sensors?
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Old 08-29-2011, 06:05 PM   #36
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Normal fuel pressure means your fuel pump is fine. How about the cam sensors?
They've been replaced already. Intake probably about 30k miles ago and Exhaust like 10k miles ago.
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Old 08-29-2011, 07:13 PM   #37
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No. This happened on my 2005 325i wih 71000mi. Fuel filters changed at regular intervals and always filled with premium. There's no reason why the the fp should crap out under those sort of conditions.
OK, how about because they are POS E46s?

My E46 is far and away the most fragile car I've ever owned. My last 3 cars I put 400k miles on collectively and they were on the flatbed 1/4 the amount of my E46 and probably required less than 1/4 the amount of repairs.

Still....

When everything is right, it's the best car I've ever owned. Go figure. A love/hate relationship.
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Old 08-31-2011, 03:22 PM   #38
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Fixed!!!

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Old 08-31-2011, 03:26 PM   #39
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how?
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Old 08-31-2011, 03:51 PM   #40
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Dealer re-aligned EWS module with DDE/DME and the car fired up.
It ran like shitt though. It would take 5 seconds to start up and then LOTS of hesitation in the engine. The tach would bounce, and revs were really jerky.
I returned the car and told them to fix it.
They replaced the shitty crank sensor from NAPA Auto parts with a genuine bmw part and the car runs like a champ now...

On a side note, if you guys ever need a tow and don't have AAA, call BMW Roadside Assistance.
Every towing place I called they wanted ~$100 for a flatbed truck and then ~$4-$7 per loaded mile.
BMW Roadside was $119.95 for the flatbed truck for up to 20 miles, and then over is what ever the towing company charges which turned out to be $3.50/mile in my case.

Cheers.
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