2006 C280 Pre-wired Telephone
I just bought a used 2006 C280 sedan from dealer. I have questions and
hope to ask from you guys:
My C280 has cell-phone prewired package. Dealer will charge about
$1,700 to make it work. Does anyone know how to make it work or hear about third-party solution? such as extra part, procedure.
Thanks.
You need: MHI module, contact plate, and bluetooth puck.
Forget the stealer. If you wait for a good deal on eBay or the forums you can get all the parts together from anywhere between 500 and 1000.
There is one aftermarket solution (STFF!) but honestly, it's not as good as the latest bluetooth puck (updated software). The site mentions a bunch of options that it gives you over the stock system, but really, most of them are flat out lies because the stock system has most if not all of those options. Also at certain times (when downloading phone book IIRC) you will get an error message with the aftermarket product.
I just bought a used 2006 C280 sedan from dealer. I have questions and
hope to ask from you guys:
My C280 has cell-phone prewired package. Dealer will charge about
$1,700 to make it work. Does anyone know how to make it work or hear about third-party solution? such as extra part, procedure.
Thanks.

I think your the only other C280 on this forum. Well i'm new here as well and I have not see anyone else with a C280. So far it's you and I. U looking for mods on ur C280 as well or r u just here for the phone module?
You need: MHI module, contact plate, and bluetooth puck.
Forget the stealer. If you wait for a good deal on eBay or the forums you can get all the parts together from anywhere between 500 and 1000.
There is one aftermarket solution (STFF!) but honestly, it's not as good as the latest bluetooth puck (updated software). The site mentions a bunch of options that it gives you over the stock system, but really, most of them are flat out lies because the stock system has most if not all of those options. Also at certain times (when downloading phone book IIRC) you will get an error message with the aftermarket product.
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Welcome and have fun with the MODS! (Mods = Modifications to your car)
Jake
Becasue some issue show up.
The audio system work fine on the road when I sent my daughter for piano class. One hour later, when I start the car, then audio system has gone.
There has radio station (FM 101.3) or CD track info, but no sound. Also, when I select CDC, it says no CDC. I try to adjust the volume, nothing happens. The switch on/off button works fine though.
Next morning, When I start it in garage, everything works fine.
On the paper, my car has
320 Entainment Package, which include:
810: Harman Kardon Sound system.
819: 6-Disc CD Changer.
See my other post message.
Have you figured out how to get the bluetooth installed on your C280? I have C280 year 2007 with all the illusive buttons on my steering and panel as that I can make/receive calls. It seems, I need to install a MHI as per one techy at Benz over the phone. When I went to their service center to ask same question they say it is not possible on my model. I am frustrated as I donot get correct answers. I am not sure that should I visit some third party technicians? Worry is , I am still under warranty.
Last edited by ganjigopal; Nov 10, 2009 at 11:13 AM.
Have you figured out how to get the bluetooth installed on your C280? I have C280 year 2007 with all the illusive buttons on my steering and panel as that I can make/receive calls. It seems, I need to install a MHI as per one techy at Benz over the phone. When I went to their service center to ask same question they say it is not possible on my model. I am frustrated as I donot get correct answers. I am not sure that should I visit some third party technicians? Worry is , I am still under warranty.
You would need all of the parts previously mentioned plus wiring loom(s) you would also need a new center console that has the upper compartment for the bluetooth puck - unless you want to take the "ghetto" route and hide the puck some place else - but you still have to be able to access the button on it when you want to pair a phone. You would also probably need additional relays and fuses. The aftermarket bluetooth kit might work on an 07 though! So search around for info on that.
You need: MHI module, contact plate, and bluetooth puck.
Forget the stealer. If you wait for a good deal on eBay or the forums you can get all the parts together from anywhere between 500 and 1000.
There is one aftermarket solution (STFF!) but honestly, it's not as good as the latest bluetooth puck (updated software). The site mentions a bunch of options that it gives you over the stock system, but really, most of them are flat out lies because the stock system has most if not all of those options. Also at certain times (when downloading phone book IIRC) you will get an error message with the aftermarket product.
Is there any DIY "manual" on how to do it?
An other question: my C280 2006 seems to somewhat pre-wired: there are cables in the center compartment (pic 1), but it's not connected to anywhere (pic 2 and pic 3) - I guess that's what the the contact plate is for, what you are mentioning.
Thanks for the help!
Nick
I have the same car... 2006 C280 and same wiring in the center console as shown in your pic. I also have the multi-pickup mic in the rear-view mirror and antenna top of rear window as well as the dash and steering wheel controls. So it is all pre-wired for a built-in phone but from what I've read, still an expensive add-on. I'll be interested in seeing what you do with yours.
- Tom



