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Old 12-04-2004, 12:10 PM   #1 (permalink)
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Battery replacement info.....which battery etc?

Okay, so I think my battery is going to go dead soon because I can definately hear a problem with the car starting especially when it's colder. How hard is it to replace the battery yourself? Can you just unscrew, lift, remove, and replace? Which battery should I get? Is there special MB battery or something?
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Old 12-04-2004, 02:10 PM   #2 (permalink)
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RE: Battery replacement info.....which battery etc?

It's straight-forward to replace yourself. As always, pull the negative cable first. If you still have the stock radio, you'll need to have the radio code handy. I know it doesn't apply to you, but for Model Year 2001 and newer SLKs, you also have to calibrate the ESP steering angle sensor (I think the procedure is in the owner's manual).

As for the replacement part, my experience with both of my SLKs is that the quality of the Mercedes battery is good, but by no means worth ~$120. Checker/Schucks/Kragen, AutoZone, Pep Boys, etc. offer equivalent batteries for about half the price with a better warranty and they will help you install it.

On the other hand, If you're the kind of person that doesn't want to do it yourself, you can call M-B roadside and they will come to you and replace the battery for the same price as you can buy it from the dealer without installation. That's actually a pretty good deal.
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Old 12-04-2004, 03:15 PM   #3 (permalink)
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RE: Battery replacement info.....which battery etc?

Quote:
Brian_R170 - 12/4/2004 12:10 PM
...but for Model Year 2001 and newer SLKs, you also have to calibrate the ESP steering angle sensor (I think the procedure is in the owner's manual)....
What is this about? I guess I'll have to look through my manual again, but I've had the battery disconnected once or twice, and I've never done this. I haven't experienced any problems either.
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Old 12-04-2004, 04:09 PM   #4 (permalink)
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Interstate is an approved alternate for the Mercedes battery ...

I had my battery replaced in my 230, and it cost $90.00 from the local dealer. about the same as from a parts store, so it's your call. MBCA members get a discount from most dealers, so that could help as well.
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Old 12-04-2004, 04:37 PM   #5 (permalink)
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RE: Battery replacement info.....which battery etc?

I finally replaced by original battery in my 99 SLK last month. I replaced it with Interstate, about $95.

I was told that if you call MB roadside, they will replace it for just the cost of the battery, since there time was "free". The guy quoted me $180 to have it done my driveway. I politely declined.
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Old 12-05-2004, 07:44 PM   #6 (permalink)
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RE: Battery replacement info.....which battery etc?

Yea, I think I'll just goto Sears and have a Diehard International battery installed I guess....$99 online....unless there's a specific brand you guys recommend? How many CCA and Amps should it be??
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Old 12-06-2004, 08:24 AM   #7 (permalink)
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RE: Battery replacement info.....which battery etc?

I would go with the OEM battery because I like the clearish white top better than the black tops with garish logos that the aftermarkets come with. Take Brian's advice and call roadside assistance and the labor will be free.
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Old 12-06-2004, 08:31 AM   #8 (permalink)
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RE: Battery replacement info.....which battery etc?

read this one - http://www.benzworld.org/forums/forums/thread-view.asp?tid=1189129&posts=18&hl=battery
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