GLK-Class (X204) Produced 2008-2014

Bluetooth/microphone problems with iPhone 5s/iOS7

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Old Sep 15, 2014 | 04:38 PM
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GLC 250d SUV
Bluetooth/microphone problems with iPhone 5s/iOS7

Hi,
I have a 2014 GLK paired with iPhone 5s/iOS7.

When I am having a phone call over bluetooth, the other person with whom I speak can hardly hear me. My voice is interrupted, sound is really bad, I am told.

Anybody had same issue, any fix suggested?

Thanks.
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Old Sep 15, 2014 | 09:24 PM
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From: Alberta, Canada
'18 GLE63S AMG /'19 PORSCHE TURBO S / '09 CORVETTE ZR1 /'14 LEXUS RX350/'16 RAV4 Ltd
Check your car manual...there are some audio settings for the phone..at least on the ML I know there are audio levels...
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Old Sep 17, 2014 | 01:15 PM
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Looks like increasing the Transmission audio volume level from 0 to 2 (max) solved the issue.

What is strange though is that increasing audio volume level also solved the problem with bad sound quality (distortion, interruptions, etc).

Thanks.
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Old Apr 7, 2015 | 04:21 PM
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The problem continues to appear even after volume setting changes. The person with whom I speak over iPhone/bluetooth handsfree can hardly hear me at the beginning of the call. Later, after 3-4 seconds, the conversation quality seems to improve.

Any ideas? Suggestions? Anybody with the same issue?
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Old Jul 17, 2015 | 03:51 PM
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Originally Posted by bonovox
The problem continues to appear even after volume setting changes. The person with whom I speak over iPhone/bluetooth handsfree can hardly hear me at the beginning of the call. Later, after 3-4 seconds, the conversation quality seems to improve.

Any ideas? Suggestions? Anybody with the same issue?
Am I the only one with this issue?
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