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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 02-07-2017, 12:29 PM   #1
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Join Date: Feb 2017
Location: The Netherlands
Posts: 2
My Ride: 320i sedan
BMW E46 320i starts bad

Hello everyone,

I am from the Netherlands so excuse me for my bad English.

I own a BMW e46 320i from 2001, it starts very bad.
When i turn the key the starter turns and engages with the engine but won't fire up because it gets no fuel.

When i turn the key but won't start the car i don't hear the pump priming, when I do this a few times the pump primes and when I fire up the car after that the engine starts immediately en runs good.

When I "started the car" but it failed I pulled off the connector to the pump and measured around 12 vdc.

I have replaced the fuel pump relay, the Ignition switch and the fuel pump.

Does anyone knows what could be wrong?

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Old 02-08-2017, 08:15 AM   #2
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Join Date: Jul 2008
Location: USA
Posts: 6,171
My Ride: 2001 330Ci
BMW E46 320i starts bad

You need to have the engine computer scanned for codes. The computer can have codes with the SES/CEL being on. That's always the first step in diagnosing a problem in a modern car.

U moet de motor computer gescand op codes. De computer kan codes met de SES / CEL wezen op hebben. Dat is altijd de eerste stap in de diagnose van een probleem in een moderne auto.

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Last edited by markusmarkus; 02-08-2017 at 08:16 AM.
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Old 02-08-2017, 09:15 AM   #3
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Join Date: Feb 2017
Location: The Netherlands
Posts: 2
My Ride: 320i sedan
The dealer has checked the car for codes, there were no fault codes. I have purchased a bmw scanner 1.4.0. And with this scanner I also cannot find any fault codes about this error.
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fuel pump

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