What is the life span of an OEM battery? - Mercedes-Benz Forum

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Old 10-16-2007, 09:10 AM   #1 (permalink)
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Red face What is the life span of an OEM battery?

I have a 2002 ML320 purchased in December 30th of 2001, current it has 77,050 miles. I have all standard equipment, no exceptional power hungry electronics. When do I have to repalce the battery? I don't want to be stranded with a dead battery.
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Old 10-16-2007, 10:30 AM   #2 (permalink)
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Quote:
Originally Posted by dominic888 View Post
I have a 2002 ML320 purchased in December 30th of 2001, current it has 77,050 miles. I have all standard equipment, no exceptional power hungry electronics. When do I have to repalce the battery? I don't want to be stranded with a dead battery.

I've just replaced my battery after six years and one months service from the original one.....even then it was still ok but beginning to be just a little sluggish on cold morning starts, that was the sign for me to change it.
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Old 10-16-2007, 10:36 AM   #3 (permalink)
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Unhappy I've changed mine

every 3 years, in fact mine just went dead this morning. This is 3rd battery in 7 years @90K miles.
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Old 10-16-2007, 12:19 PM   #4 (permalink)
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In my experience your battery is on borrowed time

Our 2002 ML320 has got 81,000 miles and we're on our 3rd battery.
In my experience Mercedes batteries typically last 3- 4 years.
You're doing well.
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Old 10-16-2007, 12:53 PM   #5 (permalink)
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If you are considering an aftermarket battery, here are my experiences.

If you get a Sears Diehard battery, the battery is shorter than the OEM battery. I put a slotted chock of wood on top of the battery to give it enough height so that the stock battery strap would hold the battery down. I have also noticed greater than normal corrosion on the negative battery terminal of this battery to the point where it required a battery post shim.

Interstate batteries offering fits better and I haven't seen the same corrosion issues as with the Diehard.
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Old 10-16-2007, 01:12 PM   #6 (permalink)
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I have original battery that was made in 1997 in Spain
Still good !
Had same question-WHEN ? ))
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Old 10-16-2007, 02:13 PM   #7 (permalink)
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if nothing is draining ur battery, then it should last at least 4-5 years...
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Old 10-16-2007, 02:26 PM   #8 (permalink)
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Still going strong after 7.5 years and 80,000 km.
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Old 10-16-2007, 06:22 PM   #9 (permalink)
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Mine lasted nearly 8 years. I changed it because the wife left a rear light on and drained it completely down. I was afraid that trying to save it would eventually cause a crap out because complete drain downs weaken a battery considerably, especially an old one.
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Old 10-16-2007, 06:30 PM   #10 (permalink)
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how much is a battery from the dealer? Not for them to install just to buy and DIY.
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