Can you replace a battery on a 1997 Jetta without messing up computer and causing it not to start?
Yes Of Course. When Replacing Any Battery Remove The Negative Cable First, Then The Positive. Then Installing The New Battery Install The Positive Cable First Then The Negative. Dear reader; Many computer equiped autos have no protection against damage if the battery is installed backwards. Some have fuses in critical circuits which offer some protection. Jump starting can also cause these fuses to fail. Dwight
Can you replace car battery in 2000 BMW z3 with like battery and just have to reset radio will this mess with the engine computer?
There are several components that must work properly for charging to occur. The battery - The battery must be rechargeable. Batteries that have been charge hundreds of times lose the ability to be recharged. Test this by putting the battery in another computer that does charge up, and see if it will charge the battery. The cable - the cable takes power from the outlet and puts it into the computer. Test this by using…
Determining When to Replace a Car Battery I don't know the "official" answer, but will provide an answer as to how I've done it for over 50 years. I replace a vehicle battery when it will not HOLD a charge over 2-3 days without use of the vehicle, but only after I've checked out the charging and electrical system on my cars or trucks and found them to not be causing a significant "drain" on…
When you turn off a computer at night it loses the date and you must reenter it each morning what is the problem and how do you solve it?
<improved answer>Just to correct the old answer, if the CMOS battery is dead, then the computer will not turn on in order for you to reenter it the next morning. It means that the CMOS battery is getting weak, and yeah, you could replace it. <old answer>It is most likely that the CMOS battery is dead. Replace it.