Bluetooth with Mercedes Benz C300 - Echo Problems

When making a call using the handsfree car kit (MB C300) the person receiving the call has a horrible echo which, according to them, is so bad they can't stand to talk. I can't hear it on my end. I have tried turning the volume down on the phone and in the car which helped a little but did not fix the problem.
Any ideas about how this situation can be fixed? I am hoping it is just a simple setting adjustment on the phone.
Thanks

Anyone else get a dealership update on their Mercedes C300 software? My 2008 C300 works great with original iPhone except address book doesn't sync. Also, has ANYONE had success with 3G in a 2008 C300? I would like to upgrade but have not read any message where a 3G has worked with a C300. thanks, ralph
adanza1 wrote:
There is actually a fix now that they can do at the dealership. I was having the issue and brought it in.. they new about it right away and said there was a bulletin out on the issue to the dealerships. They had to upgrade some software.. so far no more issues.

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I see from the number of posts on a number of threads that the new 3G iPhone has problems with many cars from different manufacturers. My car is no exception.
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Yes, it is always on. As I said, with my BB, I would just set my BB to discover.
I understand, is the iPhones Bluetooth on?
I never tried to input while the care is moving.
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Have you tried to connect your iPhone to Mercedes Benz bluetooth-based hands free system?
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Hereafter a screen copy of the (french version) MB web site...

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Warning: this is long but worths reading if you have trouble synchronizing your Nokia's phone book/addressbook with COMAND APS.
I have spent hours looking on Mercedes and Nokia forums for my problem and did not find a posted solution. I have now found a solution myself so I decided to post here hoping it will help other people.
First my issue: I have an E-Class W211 (Apr 2005, UK) with phone pre-wiring, the Mercedes SAP v2 cradle and a Nokia E61i (S60 3rd edition). Till about a week ago the whole was working perfectly: was able to make/receive calls, read/send SMS, synchronize the phone's and SIM contacts to the COMAND, etc.
About a week ago I upgraded the firmware on my phone to overcome some other (irrelevant to this) issues I had. When I got into my car after the phone's firmware upgrade I naturally needed to pair the phone with the COMAND/SAP Cradle. I did everything according to the manual that came with the SAP v2 Cradle and thought all would be good again. Then, I try to re-sync the COMAND's address book with that of my phone's by following the manual's procedure (dial 0000).
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Thanks for a thorough description of your problem and devised solution.
I was getting very happy with your description of facts, for I recognized them all. However, in my case your solution did not work: I did change back to Server Version 1.1 of the synchronization profile and still get the "System Error" message.
I have no doubts whatsoever that this happened with the 110.07.127 firmware upgrading.
Do you have any other clue on how to proceed from here?
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Bluetooth with Mercedes Benz C300 - Echo Problems

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