Unfortunately there isn't a zero rating. I took my bmw 328i here for battery battery change. The workers were happy to help out with my problem. I asked for a battery for my car year and model they offered battery change for free so I said yes. Little did I know the worker was so unprofessional and didn't even bother to check the procedure for the battery change. I had to remind the worker to use a ecu memory saver for the battery change. He took a machine out from the store and ignored the proper procedure for my car. Got the battery changed, I thanked the worker thinking it's fixed. Then I turned on my car and I couldn't believe my car is in a worse situation then the problem I came in with. The ECU was completely wiped which meant my dash doesn't work anymore(that includes the speedometer, turning signal, gas gauges, rpm reader, gas consumption etc). So I talked to the worker who helped me, he told me to "wait for the ecu to respond it might just take some time before it turns back on" and "worse case possible is having to take my car into the bmw dealership and get a battery change from them so I can get my ecu recovered" I had just spent $190 with them and I went to the dealership for help and they asked for $189 just for diagnostic fee. I asked them if I get a battery swap at the dealership will I get a ecu recovery program that comes with it. They told me that's not covered. So I'm under the impression that the worker just lied to me about the severity of the problem he had mess up with and try not to be involved. I went to dealership and came back to the store. They said the worker who helped you is on lunch break. He didn't show up for a whole hour and I went home upset. I called the other store and got the autozone support number which ended up being the regional manager's number. What he told me is since autozone provide services for small problems like battery, if something went wrong I can have a claim and they will fix my problem. I went to the store where I purchased the battery from and of course the worker who helped me wasn't there, what's even more upsetting is the fact the other worker Jesus who knew what problems I ran into asking for the problem and bluntly said it's not their fault since I got my battery problem solved. I told him nicely that because I got my battery changed here I ran into a way bigger problems. I just need a resolution to my problem. He said "that's your problem now!" And tells the customer to step foreword ignoring me as i'm speaking to him. I was no longer a customer from that moment on but someone who they try to hide from. I gave the store my contact information for the manager to call me back. I'm hoping the manager will give me a resolution to my problem. Don't come here for their services. They won't bother to read the instructions given for battery change. Avoid getting any services done here because they will try to push the problems into your own hands after making mistakes. read more