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Customer Discussions > Automotive forum

Mercedis Bentz C-Class 2001 thrue 2007 battery replacement and vihicle computer memory savers


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Showing 1-3 of 3 posts in this discussion
Initial post: Nov 29, 2012 4:49:09 PM PST
Mr. Ben says:
I have to replace the battery on my 2007 C230 Mercedis Bents. According to Hayns Repair manual book you have to use small, low current 9 or 12 volts so called Computer Savers. It is usually plugges into sigaret lighter before you disconnect the old battery and install the new one. It will prevent computer on board to loose "security alarm codes and ( maybe, but don't count on it ) PCM memory". I wonder whether some one out there has the experience to change the battery and could tell obout it?
Another question is about several Computer Savers available on Amazon. Ther is no information about compatibility of these devices with car models. So, if someone has the information please share.

Thanks

Posted on Dec 5, 2012 3:49:53 AM PST
Joshua Ortiz says:
I would say the best thing to do is just to have all those codes on hand and ready. I dont see a point of buying something for basically a one time use. I beleive those computer savers are for generic use meaning compatible for every car type

In reply to an earlier post on Dec 21, 2012 9:17:26 AM PST
I tried one years ago on a Corvette, it was a little connector for a 9v transistor radio battery you hooked up to the cigarette lighter plug.
For whatever reason it was worthless.
IMO if it's critical that you don't dick things up take it to someone who knows what they are doing, not necessarily a Mercedes dealer (who will likely charge you $100 for a job that should take 10 minutes) but an independent mechanic. A good place to start would be Yelp.
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Discussion in:  Automotive forum
Participants:  3
Total posts:  3
Initial post:  Nov 29, 2012
Latest post:  Dec 21, 2012

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