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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 06-29-2010, 05:40 PM   #1
Registered User
Join Date: Jun 2010
Location: CT
Posts: 3
My Ride: 2003 330 Ci Conv
replaced Starter and now P0030 (wiper washer too)

Hello all, my name is Wesley and I am pretty new here. Just joined a couple of weeks ago. GREAT POSTS btw. You guys have helped me a lot.

That said, I have to whine a little. I had the starter go on me and I couldn't even attempt to change it myself because of medical problems I'm having and I really didn't want to crawl under the car wearing a heart monitor.
Sorry, off-topic a bit, but the car is a 2003 330Ci convertible. Now, just in case it means anything I'll mention this....I had replaced the windshield washer pump because it wasn't working any more but it didn't fix the problem. Oh well, a month later the starter goes on me. I gave it to Pep Boys to fix because they had a starter that was cheaper than the dealer as well as almost $1,000 less in labor.

Well, they replaced the starter (in a couple of hours btw) and the car starts up fine. However, the very next morning after driving it home, the Service Endine Soon light comes on.

I go back to Pep Boys to have them look at it, thinking it's possibly related to their work or the starter, and they look at it. Ok, hold on to your seats, they tell me that the code the SES light is showing, is a code they can't even read. It has to be a dealer thing. They can't do anything with it, the starter looks ok, and I have to go to the dealer. A little upset, considering now is the time my ELM 327 ODBII adapter decides to break, so I can't even check the code myself...or clear it for that matter, I go to Autozone to have them check the ODBII code. It's showing the P0030 code only.

Is it possible they knocked the O2 sensor around a little when putting in the starter? Maybe it's a relay? A relay that might also be related to the Windshield Washer pump? I realize I'm guessing here. Thoughts?


Last edited by Wesright; 06-30-2010 at 10:11 PM.
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Old 06-29-2010, 06:04 PM   #2
Registered User
Join Date: Jan 2004
Location: Noneya, Bidness
Posts: 1,308
My Ride: 2000 328i stick
The starter is replaced from above, I couldn't see then doing it from below that would not make any sense.

Maybe they bumped something maybe not, i doubt it. Maybe it was not the right starter and the voltage is off? Perhaps it is just random, things wear out.

The key is going to be getting that code out.
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Old 06-30-2010, 10:10 PM   #3
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Join Date: Jun 2010
Location: CT
Posts: 3
My Ride: 2003 330 Ci Conv
From above? When I brought the car back for them to look at, they said they'd check the starter to make sure it was ok. They lifted it up, pulled off the metal cover and accessed the starter from under the car.

Then again, that was maybe just an easy way to take a look. I'm just guessing obviously. I haven't done anything too involved myself with this car yet due to reasons mentioned in my original post. Usually, I do most repair work myself.

I'll have to doublecheck all of the relays though. I'm kinda hoping the windshield washer pump not working is related to this. I replaced the pump itself so unless the actual lever switch in the steering column is bad, it could readily be a relay.

Thanks for the quick reply.

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Old 07-07-2010, 12:02 PM   #4
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Join Date: Jun 2010
Location: CT
Posts: 3
My Ride: 2003 330 Ci Conv
I've been watching and searching the posts here and something is kind of bugging me. Every post I see regarding O2 sensor codes showing up when the SES lights up, are never P0030.

I've seen P0137 I think it was, err...I actually forgot which, but it's irrelevant. My ELM327 interface is still flaky so I can't check it myself but I don't think my ODBII laptop interface would pick up a different code than that of Autozone's ODBII handleld scanner.

I don't know what to make of this. Why is everyone else getting a different O2 sensor code. The sensor either puts out the required data or it doesn't. It might be sensitive, but it's simplistic by nature. How many codes can there be? Sorry about the whine but I feel like the red-headed ***** stepchild.

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Old 06-27-2011, 11:20 PM   #5
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Join Date: Jul 2009
Location: Woodland Hills, CA
Posts: 12
My Ride: 325i
P0030 and P0050 Heater circuits, upstream O2 sensors

Hey there, just replaced the heater hoses on my 2003 325i, and got both P0030 and P0050 codes for Heater circuits in both upstream 02 sensors.

Both codes are for heater circuit only, not 02 sensors malfunctioning.
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2003, 330ci, convertible, p0030, ses light

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