DIY 2 extra stock woofers in rear deck, 97-02 W210
This is really cool and it has also made a tremendous difference in the quality of music. Especially the type I listen to. This Moddification will provide you with crisp bass at high and low volumes. Hell, it makes my mirrors shake :-).
Ok, so in the rear deck there are 2 stock 6 1/2" bose woofers. Thats standard for the E-Class.
Well, right next to each speaker, there is one extra speaker hole with no speaker and just covered up by foam.
What I have done, I cut approximatley a 6 inch hole in the foam (note: NOT 6 1/2" but 6" this; this is critical for the instalation).
After that, I placed a 6 1/2" Mercedes bose speaker into each slot on both sides. The bottom lip of the speaker MUST be touching the metal and the foam MUST be covering the top part of the lip in order to hold the speaker down and to prevent rattling (Glue on the lower part of the lip is opptional).
When speakers are in place, just tap the wires from your new speakers to the speaker next to it. Just some simple crimping involved and thats all.
Finally, after about 1/2 hour to 45 minutes, you are ready to enjoy your new system.
I will post pictures uppon request, other than that, i suppose my instructions are self explanitory.
P.S. If you can and choose, the inputs/outputs on the amplifier for the E-class are the same as the S-class, just a plastic pin setting/security difference which you can snap off. My point is that the S-class amp has more power than the E-class amp therefore more power to the speakers. (Do this at your own risk! I know speakers and amps because i install. but this is has not been verifyed by me yet. I have tryed it a long time ago, but i dont remember the outcome on this experiment. I know that it did not damadge anything on my car, that much i know)
I've done exactly the same job on my 210 but you should make a note to check the (total) resistance in the speaker wires going/coming from the amp before and after the install. if you are off (in ohms) you'll have to fit some resistors or get creative with yor wiring to make it work. I wired mine in series so there was no change in resistance, though there was a drop in overall sound but it was only minor (1-2%)
I dont know exactly what you mean by the resistors. I didnt bridge any connections, I just hooked the added left to the original left and the added right to the original right. You say that there was a slight drop in sound, that is true, thats also why I implicated the part about the S-Class amp (which i have access to about 10 or 15 that would fit the E-Class)
Oh one thing... may i request this topic to be posted in the DIY section. Im sure many would benefit from it. You hosts could edit and/or improve this post in photo needs or easy instruction needs.
P.S. The amp thing I will try and verify it for you guys. I have plenty of parts I can replace it with just incase I fry something. I manage a salvage yard :-P which stocks about 6 E classes and 9 S classes.
P.S.S. Could you post your wiring scematics for your rear speaker set up? I would like to compare my wire job to see if it is correct.
Last edited by skipinschool : 09-08-2006 at 05:13 PM.
Did you wire in parallel or series?
It will make a difference in the load for your amp.
Wait, do you have an amp or is this on your stock radio system?
Ocean, I think the OEM Bose has stock amps that may handle the load, but dont quote me. I only think this because we are running composits in the doors.
Skip, did you change the Gage? I did the same exact thing your talking about in my 1990 Lincon Continetal and I had to buy a thicker gage to make it work properly. I too witnessed a drop in sound but after 4 hours and alot of veriable wiring testings, I found buying new gage wiring for all the speakers help and I didnt loose power in the speaker sound and was able to run 2 JL Audio 12" direct from back.
Pics would be great! If you have pics of the overall install from the beginning ( i.e. rear deck removal) that would be amazing. I've tried to get my rear deck off and I just can't seem to get the head rests off.
DIY 2 extra stock woofers in rear deck, 97-02 W210 
no problem 
)
Yeah Pics please! 
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