I'm ready...and in fact almost looking forward to it...I dig a good fight. I sent the Regional Case Manager and the dealership the following e-mail prior to today's appointment.
Originally Posted by titomb345
To whom it may concern,
Thank you for looking into this case. In order to expedite solving this problem, I wanted to e-mail you with the details around this problem and what I've found out through research and experimenting. My car will be at the dealership tomorrow (Friday, 5/17/2012)
A little over a month ago my wife and I purchased two new VW's. I purchased a 2012 VW Passat TDI SE and my wife purchased a 2012 Jetta Sportwagen TDI. Both have the same Premium VIII radio (RCD-510).
One of the features we were really excited about was the ability to stream music via Bluetooth A2DP. After listening for awhile, many songs didn't sound quite right and some sounded awful. It took a bit, but we finally figured out what it was. The audio only streams part of each song.
I wanted to explain the next part explicitly. Every song recorded in stereo has two channels, the left and right. This radio only receives the right channel. Therefore anything that is recorded on the left channel doesn't play. If there are vocals or guitar, etc. on the left channel...it doesn't play. It's very noticeable on certain songs, where you could be missing entire parts of a song. When I tried to show the dealership the first time, they thought it was fine because sound actually comes out of all speakers, however that sound is actually only from the right channel. The radio therefore only plays half of every song. (See illustration attached).
It doesn't seem to matter what type of Bluetooth device you have...same result every time...only the right channel. We happen to have iPhones (4 and 4s), but it also happens with iPads, Laptops and Android devices.
Through friends who also have new VW's we also found the following. VW's that were early in the 2012 production cycle (ours are later in the production cycle) with the same type radio, actually stream music correctly in stereo - both left and right channels. Music also streams correctly on the cars equipped with the RNS-315 and RNS-510. We have found that the early production 2012 models came with a different version of the RCD-510 (the "phone" button is actually a "mute" button instead) and has a different part number. We both have the newer version of the RCD-510. It seems odd that the newer version of the radio actually performs not as intended wheras the older version performs as intended. (See part numbers below.)
Early production 2012 RCD-510's (streams correctly) - Part Number: 1K0035180AD
Late production 2012 RCD-510's (doesn't stream correctly - OURS) - Part Number: 1K0035180AE
So, through trial and error with our cars and our friends we have narrowed the issue to our version of the RCD-510 head unit (part number: 1K0035180AE). We know it's not the phone and not the 9w7 Bluetooth module.
I wanted to make sure I explained the problem thoroughly so that it could be verified and then corrected. I am a loyal VW customer having bought my last 5 cars new from VW. We just spent $60,000 on new cars and are optimistic that Volkswagen will do the right thing to acknowledge it and fix them both.