replacment battery
I think I saw the proper battery (Group 49) at Pep Boys once,
but it wasn't cheap. Do you have that chain in your area?
HTHs
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Doesn't matter where they are made! There are at least two places to purchase replacement
batteries for the W-210s (all models BTW) besides the dealer, and they're a lot less expensive.
I mentioned this above, but again, the proper battery is known as a Group 49.
It's measurements are 14 5/16 X 6 1/2 X 6 13/16 inches.
You're correct about one thing, it is the largest battery I've seen in a passenger car.
They're available at the local Pep Boys in Temecula California, and Michakaveli says Interstate makes one.
He should know, as he has a diesel, and so does his dad.
Plenty of locations stock or can order Interstate Batteries.
Last edited by Green E-300 DT; Feb 8, 2005 at 03:01 AM.
The Best of Mercedes & AMG
So far, at least four different brand names.
$65 sure beats that MBZ replacement.
Not that hard to replace yourself BTW.
It is a heavy mother to be sure!

As Green mentioned above, it's a heavy mother and might take a bit of elbow grease to lift it out from under the back seat.
I guess this way they come to you and you don't have to take your car to the dealer.
Also, be aware that you might have to have your computer reset after replacing the battery to clear any error codes that pop up. And have your radio key card handy because you'll have to enter that into the radio once the battery is replaced as well. I found out that the key card that came with my car was invalid because the radio had been replaced before I bought the car!
I'm waiting for mine, which I think is the original, to go bad and see if I can make an Optima fit.
Yes I know that the Optima does not have the cold cranking capicity of 825
amps, but do I need that much here in relatively warm Southern California?
The Optima 75/35 does have 720 CC amps and 910 cranking amps.
The new battery was a BANNER, 13inch long and 100 Ah . The orginal old one was smaller and 74 Ah.
I connect a ordinary batteri charger to the + and - terminals in the engine rum, so the car have power on the system whole time. No promlem with radio ,doors or error code after the now batttery was connected.
From Norway
W210 1999 E 240
W 107 1971 350 SL
The new battery was a BANNER, 13inch long and 100 Ah . The orginal old one was smaller and 74 Ah.
I connect a ordinary batteri charger to the + and - terminals in the engine rum, so the car have power on the system whole time. No promlem with radio ,doors or error code after the now batttery was connected.
From Norway
W210 1999 E 240
W 107 1971 350 SL
Maybe your MB was outsorced by IBM to be built in India too !!!
Arvid
I'm waiting for mine, which I think is the original, to go bad and see if I can make an Optima fit.
Yes I know that the Optima does not have the cold cranking capicity of 825
amps, but do I need that much here in relatively warm Southern California?
The Optima 75/35 does have 720 CC amps and 910 cranking amps.

Is this Optima battery a Gel battery?
I heard that Gel batteries last much longer and they are smaller in size.
Anyone know?
The reason I replaced the battery, other then it was 7 years old, was the faults, ck engine-ck electronics, lights and I wanted to be sure it wasn't the battery. Well it wasn't the battery but that had to be replaced especially living in the harsh NWNJ winter.
When the vehicle was at the dealer for the rust repair, another report, I had all the filter replaced. Runs great but now have to find out why the fault lights. Any suggestions?
Thanks
I heard that Gel batteries last much longer and they are smaller in size.
Anyone know?
In answer to your question . . Yes, I think? :v
Go to: http://www.dcbattery.com/optima2.html
Study everything there, and you'll know more about Optima that I do!







