Screw and bolt broke on my battery, need help finding more - Mercedes-Benz Forum

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post #1 of 4 (permalink) Old 01-16-2010, 09:10 PM Thread Starter
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Screw and bolt broke on my battery, need help finding more

I have a mercedes ML 320 2001 6 cylinder. After checking the battery for my six hour long trek back to college for Spring semester both screws on the batter + and - indicators broke. They seemed very corroded. Anyways, I am planning to leave except I can't go till I get this one bolt. It is a square head that says either PBS or FBS on the head. On the bottom it says 5.8. Does anyone know where I can get a replacement? I've gone to lowes and three autozones and a pep boys and no one can find them :./
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post #2 of 4 (permalink) Old 01-16-2010, 11:25 PM
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So you mean the screw from the connector to the battery pole? Can't you use a bolt from a connector that you can buy separately or just any other bolt at least temporarily? If it needs to be square (only allows a single tool to be used) you could tool a hex nut/bolt to fit.
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post #3 of 4 (permalink) Old 01-17-2010, 04:47 AM
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Any bolt

Any bolt that fits will be fine. As previously mentioned, the square head is a convenience (and a minor safety feature) that allows the use of one wrench to loosen/remove the nut.

The corrosion should be of more concern. I would recommend removing the battery to look for corrosion beneath it, then washing the battery compartment and the battery if necessary with a thick, almost paste baking soda solution to neutralize the leaking battery acid and vapor. A coat of Rustoleum in the battery compartment may be needed. Also, check to ensure your battery vent tube is in place. If not, make it so.

Go back to your Pep Boys for a pair of those red and green felt collars to go under your battery cables to prevent future problems.

Last edited by rocky raccoon; 01-17-2010 at 04:50 AM. Reason: add information
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post #4 of 4 (permalink) Old 01-17-2010, 09:54 PM Thread Starter
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Thanks everyone who answered. It was a hard fit but I got a angled bolt wrench to tighten it. Thanks again.
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