Quote:
Originally Posted by heizervr6
I recently had to replace the battery on our 2007 E70 3.0 and after doing some research I determined that the best option was to go directly to the manufacturer of my existing battery rather than getting a replacement battery from BMW. There were multiple reasons for this: 1) OEM was cheaper than OE 2) BMW only sold "updated" batteries that would have required reprogramming that I didn't feel like doing, especially if it was going to cost more for the battery anyway (they now recommend a 90AH and a 92AH instead of the 100AH that my X5 was originally equipped with) and 3) There was nothing wrong with the lifespan or reliability of the original battery to begin with.
The battery that our X5 required was a MegaTron Plus/Interstate Battery. MTP-49/H8100 AH. If you call Interstate directly at 1-800-843-0200 they will be able to provide you with a list of dealers in your area and you'll just have to call each one for the best deal and availability. I paid $237 CAD for mine here in Calgary which was substantially less than the $311.65 and the $366.65 that the dealer wanted for replacement ones mentioned above (not including reprogramming cost). You will want to take a look at the type of battery that you have prior to starting this job to see if you can track down the exact same replacement battery unless you don't mind reprogramming.
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From the Interstate web-site, it appears that your MTP-49/H8 is a Wet Cell battery and only rated at CCA 720. I saw a MTP-49/H8 battery today that was Wet Cell and rated CCA 900 (with 79 Ah). So I think Interstate has a lot going on with their batteries (and using the same codes) that are adding confusion. So I don't know what yours is...
Based on the Interstate website, it looked like I wanted the MT5-49/H8 (which is AGM and CCA 900). Interstate says they don't sell that yet. The shop spoke to Interstate and is going to get me the MTP-49/H8-A (which is supposedly AGM and has CCA 900). I'll check it out before they install.