Do-It-Yourself information for the modifications I've completed
Do-It-Yourself information for essential wear and tear items
Articles covering all the ways to maintain your car
All about the BMW 330ci
Various links that I've found valuable
A few pictures of my car and some others
Contact me for questions, comments, or sponsorship
Changing Your Battery
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Changing your battery is really quite simple. As long as you can lift the battery, you can do this DIY in just a matter of minutes.
When is your battery dead?
Batteries have a designed lifetime of 5-6 years. My original battery lasted for 6 years before it died once it started getting cold out. One sure sign is that as it gets colder, your car will take longer to start and hesitate. Finally it will flat out just not start. That is when I knew for sure that mine had bit the dust. If you do replace your battery and a few days later, the same thing happens, then it is your alternator. You can also take your old battery to the local auto parts store and have them determine if your battery does indeed need replacing. Either way, it's going to die eventually. Make sure that you recycle your old battery appropriately.
I chose to go with an inexpensive alternative battery instead of the OEM battery. One of the major reasons behind it was that it was a Sunday night and I needed to drive my car to work the next day. Also it's much cheaper. The Duralast 49-DL is an excellent alternative that I will highly recommend to anyone shopping for a battery. Just stop by any local Autozone and you can pick it up. The sales person will not want to sell it to you since it isn't "designed" for the 330, but trust me that it will fit and work just fine. Below are some specs to show the difference between the OEM and the Duralast battery for those of you who are wondering.
||Cold Cranking Amps
||Cranking Amps @ 32F
Large phillips and standard screwdrivers
1 49-DL Duralast Battery ($80 with a $12 core charge that is refunded when you return your original battery)
Warning! Carefully follow the directions for removal of the battery terminals. The positive terminal is disconnected last and reconnected first. Failure to follow these directions may lead to sparking and/or shocks. Be careful not to short the terminals together.
Upon completion you will need to reset your clock (your trip odometer, MPG, and MPH OBC features will be reset as well) and fire up the car. Mine started right away and haven't had any problems since. An excellent alternative that will save you about $100. Happy motoring!