Skip the auto shop - Our mechanics make house calls

Q: Can't use phone and media jack won't handle signals

asked by on

The electrical system repeatedly fails in my car, when I’m on the phone. The whole system turns off, then resets, and the display unit then goes black. In addition, there is a high pitched feedback squeal that can be heard on the speakers. I had the car’s electrical system looked at two different times. They rebooted the electrical system completely one time. The problem was not fixed. Later, after those visits, they told me that you can’t plug a phone into the media jack, which is found in the middle console. And that the media jack is so poor that it can’t handle the variety of electronic signals like voicemail, texting, email, etc. which results in overload of the system. It is aggravating that a 2015 car can’t handle modern technology. And one other problem, the wind noise while driving on the interstate is awful. What is your advice to correct these problems?

Your 2015 Mercedes-Benz S550 may be involved in one or more vehicle recalls pertaining to this issue. These recalls are very recent and you should get in touch with the local dealer to check for any outstanding recall and have all of them performed to see if it fixes the problem you are having. As far as the wind noise is concerned, I can only suggest you drive another vehicle of the same year, make, and model to see if it is normal or if just your car has it. The wind noise may be inherent to your vehicle. Since your car is new, it is likely still under warranty with the dealer. If you’d rather have an independent technician take a look, a certified mechanic from YourMechanic can inspect and diagnose the car’s electrical issues and wind noise for you.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: The car has an autocheck report of 90.

Hey there. Failing the emission test is less of a concern than failing a safety inspection. Emission testing failure could be as simple and innocuous as the car having a loose gas cap and setting a DTC. But...

Q: Alternators not working properly

Hello there, a few different faults can be preventing your 1997 Chevy C2500 from charging. The most common would be the alternator, battery, battery cable, wiring fault, or an open circuit. To diagnose this, the first step would be to...

Q: F-150 will not run when it is over 70 degrees

I see stuff like that all the time. A lot of times it's the temperature sensor for the computer that has gone bad. It tells when the engine is hot and when it's cold. If it gets too hot outside,...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...