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Changed battery and car too speed is 20 moh. 2008 328i.

Customer Question
Changed battery and car...

Changed battery and car too speed is 20 moh

Mechanic's Assistant: Have you changed a battery before?

No

Mechanic's Assistant: What is the model/year of your BMW?

2008 328i

Mechanic's Assistant: Are you fixing your 328i yourself? What have you tried so far?

Battery was dead changed battery car starts but well on go 29 mph

Submitted: 7 months ago.Category: BMW
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Answered in 5 minutes by:
11/28/2017
BMW Mechanic: rpmdiag, Tech and Instructor replied 7 months ago
rpmdiag
rpmdiag, Tech and Instructor
Category: BMW
Satisfied Customers: 8,988
Experience: Since 1975
Verified

Hi, I'm Ron and I will be helping you today.
Stand by for a moment while I prepare your answer.

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BMW Mechanic: rpmdiag, Tech and Instructor replied 7 months ago

Okay, I need you to first comp0lete this procedure I attached for and let me know if it fixes it or not.

Please understand that I don't know your skill level or tools
you have to assist us. Also understand that I can't see, smell,
hear, or touch the vehicle either, so your patience is
appreciated. JA is a great Q/A site, but it does not replace a
repair shop. So please don’t shoot the messenger if I have to
deliver bad news:)
If you are satisfied with my answer, I would greatly
appreciate a 5 star rating now before you leave the site and I
will still assist you after you have rated me too if another
question pops up. I don’t get credit for helping you until
you rate me

Thanks, Ron

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BMW Mechanic: rpmdiag, Tech and Instructor replied 7 months ago

Did you have any more questions for me at this time?

Thanks again, Ron

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Customer reply replied 7 months ago
Completed the procedure. Reattached battery cables. Doors lock, Windows go up and down, engine will not start.
BMW Mechanic: rpmdiag, Tech and Instructor replied 7 months ago

Okay, then we need to know if it's due to a security issue then.

I attached 1 more doc for you to review and try.

If this doesn't work,then we need a scan tool attached to the computer system.

Thanks again, and please remember to rate me 5 stars for my time now and keep our link in case you still need help later on with this.

Ron

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Customer reply replied 7 months ago
After locking the car and leaving it, the car started. However, the original problem with low rpm was not resolved. I understand the $5 cost is not refundable, but since the issue was not resolved, do I get the refund of the $30?
BMW Mechanic: rpmdiag, Tech and Instructor replied 7 months ago
We're still working on this.
What about the scan tool data. We're not done yet, this can take a little time.
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BMW Mechanic: rpmdiag, Tech and Instructor replied 7 months ago

Thanks again and please remember to rate me 5 stars now
and keep this link in case you need me again later on.
I don’t get credit for assisting you until you rate me
My goal is to assist you in the repair of your vehicle by
supplying you with well educated information. I may not
always have the exact fix you wanted to hear, but my job is
to get you on the right track, which I always do. I can’t hear,
see, smell or touch your vehicle from where I’m at, so your
understanding of that is greatly appreciated. There are no
magical answers, but I do my best to guide you in the right
direction.

Ron

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