I have a [bmw 325i](/topics-bmw-325i/) with a baiid unit....


I have a [bmw 325i](/topics-bmw-325i/) with a baiid unit. It drained the battery. I have jumpbox to charge. The company I have for the baiid has to do a hard reset so I have to disconnect the negative cable from the battery. my qu...

I have a [bmw 325i](/topics-bmw-325i/) with a baiid unit. It drained the battery. I have jumpbox to charge. The company I have for the baiid has to do a hard reset so I have to disconnect the negative cable from the battery. my question is, is can I safely reconnect the negative cable to the battery safety with the car running. I will be charging the car with the jumpbox on the emergency cables under the hood. battery is in the trunk Mechanic's Assistant: What exactly is happening to the trunk? The battery is in the trunk and I was told by intoxalock I need to disconnect the negative cable so they can do a hard reset. can I safely reconnect the negative cable with the car running as I have to charge up the battery Mechanic's Assistant: What year is your BMW 325I? 2004 Mechanic's Assistant: Are you fixing your BMW 325I yourself? What have you tried so far? I am. I'm the only the can breathe in baiid Mechanic's Assistant: Anything else you want the Mechanic to know before I connect you? I charged but then I couldn't use the baiid kept getting errors because the battery was low that's y the intoxalock people have to reset it

Automotive Expert
Hello and welcome

Hello
Automotive Expert
No, it is not safe to do this. Charge the battery and then separately unhook it if you need to

I shouldn't connect the negative cable when the car is running
Automotive Expert
Correct

Can the battery still charge with that cable disconnected after I take off the charger
Automotive Expert
No it can’t

I want to give it enough time to change before I shut the car to reconnect
Automotive Expert
As I said, charge it and then once complete disconnect it

Ok, I'll try to get ahold someone from intoxalock before I start charging because the baiid is draining. I'll get a call back number so they can do reset as soon as its charged. Then I can shut off car and reconnect then start the car up again hopefully
Automotive Expert
Good luck with your vehicle

Thank you. Thank you for your help
Automotive Expert
You are welcome

What others are asking

How do you delete a name from the HandsFreeLink phonebook?
Deleting names and numbers from the HandsFreeLink® (HFL) system in your Accord is actually just as simple as adding them. All you need to do is follow these quick steps: Press the talk button and release it Say “phonebook” Listen...
Trunk popping open while driving
It sounds like you are on the right track. The most common cause would be an issue with the locking assembly but if the car is equipped with a switch to open the trunk that could also be an issue....
oder of schooling for automotive industry?
Hi there. I have taught automotive technology and I can tell you that you can work while training in most programs. You will find that body repair and automotive repair are two separate programs. The automotive repair program (https://www.yourmechanic.com/article/how-to-become-an-automotive-mechanic), for...
Gasoline smell
Hello there. Evaporative system leaks are not unusual. Many different faults can cause a fuel vapor leak and they can be notoriously hard to locate without specialty tools. Fuel vapor leaks that you can smell are usually smaller than the...
On Gear (D) I can't go more than 40MPH speed,
This is likely a transmission problem dealing with the proper shift points. There is an ECU module in the transmission that regulates when the transmission shifts from one gear to the next based upon engine RPMs and activated by a...
My car wont start, doesn't click and will not start with a jump either.
It sounds like your starter (https://www.yourmechanic.com/services/starter-replacement) has failed. There is also a slight possibility that the alternator (https://www.yourmechanic.com/services/alternator-replacement) is bad but I would say starter first. I would start with a charging system test and figure out what is causing...
Clicking when letting off the gas pedal.
The differential inside the transmission may be worn or have an issue with the bearings that is causing the clicking noise when loaded on the opposing side to the load applied when driving. Try to see if the noise occurs...
Hello I have a lancer and it just shut off on me driving on the freeway..sounds like its just winding like if there's no belt on i
A possibility is a broken timing belt but there are other common possibilities such as an engine sensor failure, ignition switch failure, fuel pump failure and so forth. The good news is you do not have an intermittent problem but...
What is the cost Part and labor to replace a thouttle body on 2012 Lexus RX350?
Hi, I will be glad to help you with this. You can obtain a written quote, and schedule the repair to suit your needs, by using YourMechanic’s throttle body replacement service page (https://www.yourmechanic.com/services/throttle-body-replacement). Once on that page, please click on...