I know this thread has been around for quite some time but if there ever was a good sticky this has got to be it. I replaced my battery exactly 1 year ago with a OEM from the dealer. The battery started having trouble turning over the engine last week and completely died a couple days ago. I charged it in the garage but it wouldn't hold for more than a few hours.
I figured if I brought it back to the dealership they'd give me another since it's been 1 year and from what I understand, car batteries typically last just a little bit longer than that. Well...I figured wrong. They said since they did not install it they couldn't be sure if it had to do with user error. For the record, I had my father install it since I had to work that day and he's a mechanic with his own shop. Well, I know when I'm getting the end around so I just left and told them I'd drive across town to the other BMW dealer from now on if I needed to be robbed again.
Stopped by Pep Boys and Advance Auto to see if they had any suitable replacements. They asked God (their computer) and he said no. I told them I knew for a fact some people get direct replacements from their store but it just was not listed. I must of forgotten to put away my crack pipe that day evidently because they looked at me like I was still high. Went back home, checked this topic again last night and then stopped by Autozone this morning. Grabbed the 49DL and went to the register. Clerk asked me what car it was for and I said BMW 330ci. I expected to get a round of BS like the rest of the guys here did but he actually chuckled and asked how'd I know. He's got a e36 M3 sedan it turns out.
The install was a snap with no real changes other than removing the white plastic holder at the very bottom to fit the longer 49DL. The hose fits fine with no crimps or weird bends. Had to adjust the metal top/bracket to a lower setting since the new battery sits lower or is lower in dimensions. Car turned on fine without a hint of hesitation. I have all factory stereo equipment with the HK system so I don't think I did anything strange to kill the OEM battery. I never listen to the radio with the engine off and I don't even use the lighter for any accessories.
I really think the OEM battery was a real piece of junk not worth the $130 I paid for. My 49DL was $70 with a 24 month warranty and 84 month limited warranty. That alone is better than paying for a dealer installed battery which would run around $180+ after "labor" and not even have a real warranty (not one that they actually stand by anyway). I'm sorry this is so long but I had to vent some of my frustrations with the dealer, who I used to be a very good customer with I'd like to think. I always used their parts, never hassled them when things arrived late or repairs were not done as promptly as requested. I go on a first name basis with everyone in the place from the techs to the salesmen and receptionist. But they all just gave me the cold shoulder with this problem except for the people on this forum. So I just want to endorse the use of the 49DL in terms of fitment and OEM looks. It is a perfectly good battery and I am sure someone would of updated this post with some angry ramblings if it turned out to be a dud. I am a nut for using OEM replacement parts unless it's to upgrade but this time I will never go back to a BMW battery, not that I would even need a new battery anytime soon from what everyone has said. Again, my apologies for the length, I hope it's of some use to anyone.