I need to replace the battery in a BMW 323si. Every place that I
called; Sears, NTB, Pepboys do not have an exact replacement.
Do I need to find a battery the is designated for that car, or can I
just match the size and CCA?
Why is that battery so hard to match ? One dealer suggested it was
the vent design.
Any one know what the battery from the dealer is going to cost ?
Any help is appreciated.
What year car? You can look up the "group" number and get the specs for
that group. Often there will be another group that will also work in
certain applications. The only difference may be a small difference in
the dimensions (usually length) that is inconsequential.
Year is '99, the battery is in the trunk on the right. Looks like
Here are the numbers:
12v 75ah 340A 650CCA BCI Group No. 92
and then some encoded number large and bold "61 21 8 353 651"
Looking from the top, I don't see a vent. Any Idea what they are
talking about ?
The label did not have a date of any type.
OK, the info you gave is what you need to know. The "61 21 8 353 651"
is the BMW part number.
BCI Group 92 is the key to size and terminal placement. Here is a web
page that details all of the various groups:
As you can see, this is a rather unique size and configuration battery.
The closes t thing to it would be the group 91, which is more
available than the 92.
You could just get the BMW part but it will be more expensive.
'R' stands for reversed positive and negative posts. Group 94R has the
same dimension as group 94, but with reversed post position.
We got an InterState for my niece's 99 323i. But in my opinion, I would
switch back to BMW OE the next time. InterState is slightly shorter and
lower. One of the cables (don't remember if it's positive or negative
but it is the front one, closer to wheel) is stretched and it is not a
snug fit. I have to add a thin wood piece so it won't move.
Remember to re-connect the vent tube. You don't want the gas to stay
Is there a Batteries Plus store in your area? They carried the original
battery from Douglas, who has now sold out to someone. I 'think',
however, the new company still makes the replacement batteries.
That's not a bad deal all things considered... but next time look for
an independant shop that sells Interstate batteries. The warranty comes
from the manufacturer and the price would likely be a touch lower.
That sounds amazing. 8 1/2 years warranty even if some pro rata
Best I've found in the UK is 4. Seems it's one of the things they can't -
or won't - improve the life of.
My replacement Bosch has now lasted longer than the original.
*The older you get, the better you realize you were.
Dave Plowman email@example.com London SW
Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here.
All logos and trade names are the property of their respective owners.