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Is ECU reset required when battery is replaced on 2012 Fiat 500

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2012 - 2014 Fiat 500

The battery on my 2012 just died, big time. I got roadside assistance to give me a jump, but the man who did it said the battery had no juice left and advised me to drive the car, without stopping, straight to someplace where I could get a new battery installed. I did as he suggested. I drove straight to NTB, where they installed a new battery; however, they told me they would also have to reprogram the ECU, which would require an additional hour of labor. Accordingly, the total charge for battery replacement was just under $300. A male friend told me I was totally taken advantage of. He claimed reprogramming the ECU was not necessary, and claimed that it would reset itself during subsequent driving of the car. However, he doesn't drive a Fiat, and from what I've read online, it is my understanding that it is necessary to reprogram the ECU on Fiats and BMWs and some other foreign cards. Is what I've read correct? Is it necessary to reprogram the ECU on a 2012 Fiat 500 C Sport after a battery goes completely dead? Thank you for answering my question.

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Response from doc1968

12:39 pm December 1, 2017

I'm going to assume that by your Truedelta name that you are a woman. It has been my sad experience, as a male, to see women taken advantage of especially in the world of automobile repair. That is not to say that all mechanics are pigs, but many do take advantage of women because they believe, or assume, that women no nothing of automobiles and thus an easy fleece.

Regardless, they took advantage of you. When your battery went dead, your ECU was fine. It does not need to be reflashed or updated or any such thing. Once a new battery is connected, all will be fine. You may need to reset any clocks in your Fiat and/or you may need to adjust some other optional features that may run off the battery and need to be reset. The ECU is not one of these.

If you are a woman, may I suggest that in the future, before any automobile repairs, you consult a male friend for advice. Better yet, being forewarned is forearmed--buy an inexpensive used book on basic modern automobile repair from eBay or Amazon.

No, I'm not suggesting you work on your own car. The vast majority of everyone (including me) cannot do that because of the advanced electronic computer controls that are in modern automobiles. But it would give you an understanding of how things work in your Fiat.

Hope things go better for you in the future.


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Response from Member1131

7:18 pm December 7, 2017

I too had a battery failure on my 2012 Fiat Lounge last summer. One minute it worked, next time I went to start, it was dead. I too was boosted by the auto club and drove home. I took the battery out and replaced it with an AGM (Absorbed Gas Mat - an upgrade to the original) battery and all was good. No ICU reset was needed. Complete bullshit from your repair (and I would hestitate to describe them as such) shop. It is this kind of crap that gives auto repair shops a bad, but deserved reputation.
I try to avoid my dealer but do allow them to do oil changes. They installed a new set of snow tires but placed them in the wrong direction of rotation. Careless. I do not let them touch my wheels now - I use a torque wrench and do it properly.
I'm sorry you got ripped off. Try not to reward these jerks with more of your money.


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