How to change 318ti rear speakers (write-up with pictures!) How to change the rear speakers in a 318ti By Eric Miller As you probably know, the rear speakers in a BMW 318ti are not a standard size. The only aftermarket speakers that fit without modification are MB Quartz (size 4T), there may be others so don't quote me on that. This article describes my efforts (with pictures) to mount Eclipse 4" speakers in to the stock rear speaker mount. First remove the side bolster from the back seat and carpet and trim from around the speaker, disconnect the wires for the tweeter mounted in the grill piece, then remove the speaker mount (4 screws) from the grill piece. This should be fairly self explanatory if you look. De-solder the wires attached to the speaker poles, we will solder these to our new speakers. You can see that the speaker is held in place by 4 tabs around the edge that have locked in place under a tab, and secured with glue. Using a thin flathead screwdriver, carefully inch the blade around the edge of the speaker to unseat the glue (pic below). http://i.imgur.com/Ijuui.jpg You pretty much have no chance of rotating the speaker to get the tabs out of the way, so I just busted them off. You could still use the old rear speaker if you use glue, I suppose. Pry the speaker out of the mount. http://i.imgur.com/3Eb7p.jpg A standard 4" speaker will not fit into the original mount location because of the mounting holes sticking out in the 4 corners. What I did is bend these corners back so the mounting hole is then perpendicular to the face of the speaker. Be careful not to bend the metal where the cone attaches. http://i.imgur.com/zNqyG.jpg (since the board limits the number of images per post, the write-up continues in the next post below.) |
Now slide/wedge the speaker into the mount, facing up. Unfortunately I could not mount the speaker in the exact same place as the original speaker, rather it faces up directly underneath the grill. http://i.imgur.com/YZ525.jpg At this point you're probably wondering "How does the speaker stay firmly in the mount?", here is how. The speaker inside the mount has 4 tabs with holes that are facing the walls of the mount. Carefully drill small holes in the side of the plastic mount in the same position as two of the speaker tabs. Simply take a small bolt and push it through the outside of the plastic, through the mounting hole on the speaker. http://i.imgur.com/lurjb.jpg Then position the nut on the inside to receive the bolt and screw it tight. Use washers if you choose, or lok-tite, to prevent rattling; I used washers. http://i.imgur.com/HilB5.jpg Last, solder the wires from the clip to the new speaker. In my case it was not obvious which poles on the old speakers corresponded with the new speakers, so I made sure to just wire up both speakers the same way (ie stripe - small pole, no stripe - large pole). http://i.imgur.com/4Xfyf.jpg Installation is reverse of removal! |
Cool write-up, was this for Swits' car? How do they sound over stock? What else have you changed of the stock system? Gadget |
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Wow, congrats... I would love to hear how it sounds. I am in the process of planning out what changes to make, the only thing I am a bit concerned about is vibrations... E36's are notorious for vibrations with aftermarket systems. How is yours doing with those mods? The only thing I have besides the stock system is a 6disk mp3/cd changer and a Kenwood 300watt amp and 8" Bazooka tube. Which is filtered to just lay in the really deep lows. It helps quite a bit, but the whole system could use a boost. The key thing for me is being able to wire in my iPod, I am going with this Alpine 9855 for the head unit. http://akamaipix.crutchfield.com/pro...CDA9855-f.jpeg Now I just need to figure out how to lay out my speakers now... Your set up sounds really close to what I had in mind. Cheers, Gadget |
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I really like that Alpine head unit! The last thing I want to get for my set up is an mp3 player. Let me know how that one works out for you! |
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I just wanna thank u coz i did use ur guide yesterday and i got my speakers changed... i really like them now, its is just greatt.. |
Just a note on the iPod wiring to your aftermarket deck. The reviews are horrible. Its noted that only 8 characters display on the deck. I bought a new Pioneer Deck that plays MP3, WAV, and AAC (Itunes downloads). It works very well, and as you'd know, holds about 150 songs. Id recommend that over the ipod wiring. And besides I havent seen an ipod wiring configuration yet that didnt expose the wires. As for rattling. Mine doesnt rattle, and I have 2 1000 watt Audiobahn subs in my trunk. The ones Xzibit has in his hummer. It sounds just fine. |
Hey Eric, Thanks much for the write up. I have some MB Quarts that have been sitting around impatiently waiting to be installed and your write up will help I'm sure! If I caught the reference right you and SWITS a couple? If so, a very fine looking couple indeed, congrats! Hey SWITS, do you have an older sister . . . much MUCH older?? :no: ? :ashamed: :biggrin: I live in Tacoma and work in downtown Seattle and occasionally get over to the east side, if you two, or any one else on the list for that matter, see me feel free to honk, wave, flip me off etc! |
That's a great writeup, that's exactly what I did to install my rear speakers a year ago. I put in 3.25" speakers as well, and had to bend the corners. I also bought an Alpine head unit recently. Then I blew the rear speakers... |
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Finally got around to replacing my rear speakers and the write-up was definitely very helpful. Thanks a bunch, e30fiend! |
Thanks for the excellent post! Eric, you rock! After typing BMW speaker part numbers into google to no avail, I read your speaker post and I'm heading to the local audio store tomorrow to get some 4" speakers to fit into the mounts. Thanks a lot! |
Wow, I really wish you had written this like eight months ago. I replaced my speakers last summer and it was a huge pain in the ass. I couldn't find anything on the internet about it. I went with polk 5 1/4 component speakers all around and some how go the back ones to fit. Damn German engineering. |
Can you provide a link to a seller for the MB QUART 4T? I searched all over, can't get any hits when I google it. Many places sell MB QUART, but none specifically mention the model 4T. Quote:
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rear speaker results I picked up 4 inch speakers from autozone and put them in exactly as shown in this posting and everything is great. |
I put 5.25 in the rear, it was a pita. Wish I knew they had 4" name brands available. |
replacement speakers I found this web page that shows larger replacement speakers! But, it says they are "sold?" Check it out http://www.vitessetuning.com/partsbin.asp |
"First remove the side bolster from the back seat and carpet and trim from around the speaker...." Please help. How do you remove the side bolster? I'm trying to access the rear speakers as described in the OP but I'm afraid of tearing up my matting, carpet, etc. Thanks.....SB :smile: |
grab it at the top and pull towards the front of the car, the top clip will come loose I don't think you'll break anything so don't be afraid to really yank on it |
roger....i'll give it a shot today...thanks |
just to let everyone know, i got in ebay and found adaptors from germany that house a 5 1/4 speaker in the rear spots. its just a adaptor and let me tell you it kicks ass! took me about a hour to switch both speakers and it sounds/ looks alot better! plus the adaptors were only 20 bucks. |
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Am I doing this right? So, it’s just a quick, firm pull forward, not upward, or anywhere else? If someone could post an image with maybe labeling where to grab and pull, I'd really appreciate it. Thank you. |
might be that it was already broken by a PO, mine just pulled right forward, the bottom clips didn't come off on mine but it did pivot forward |
2 Attachment(s) I used pretty much the same method, but instead of turning the tabs down I turned them up. It's a lot easier to tighten them up in preparation for re-installation. The speakers are Pioneer TS-G1043R's, 4 inch. Also I used metric machine screws with nylock nuts. Don't like those puppies rattling loose! :P |
cool nice post. ill be hopefully doing this soon! |
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Great write-up. It's totally universal if anyone wants to add their own twist on the mod. Sounds much better! |
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I cannot beleave 4" speakers are enough for most people, I was thinking 6x9 adaptors but I dont see anything remotly close avalible... I guess butchering the rear parcel trey is the only way to add in decent sized speakers? |
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Did this today. Time consuming, but easy enough for a non-dyi like me. Sounds awesome. |
Excellent DIY. I used these speakers and it is great. Pioneer TS-G1043R 4" Coaxial Speaker Pair 120W from Parts Express. I live close to their store and the guy helped me pick these out. http://www.parts-express.com/pe/show...&FTR=ts-g1043r Thanks for the DIY tip. Ray |
FYI, this can be done without removing the seat bolster, just have to flip the seat forward and you can get to all the screws by moving the side carpet |
Was thinking about picking these up. Should work just fine per this tutorial, no? Or do I need to find a 4'' mid to low end woofer? http://www.amazon.com/Polk-Audio-4-I...7351697&sr=1-6 |
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should work fine. A few of us use these.... http://www.parts-express.com/pe/show...number=290-212 |
Thank you, familytruckster. I saw CirrusSR22 posted up a hack with the Polk Components speakers (5'' one I think). Might not be as elegant, but I might look into that as well. |
Whatever works. I decided to hack mine up. Sounds good too, I got mine 50% off....so I couldn't beat the deal. I did a write up too.... http://www.318ti.org/forum/showthrea...=rear+speakers |
Looks like we lost the pictures. Does anyone have them? |
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