gman99

I own a 2012 Hybrid Cayenne that's been rock solid (30,000miles), and I lease a 2015 Panamera e-hybrid.......love them both, but like the full silence of around town distances electric-only driving the Panamera can offer. Thinking of leasing a Cayenne e-hybrid, too. Recent test drive was disappointing because I found the car much noisier. Although dealership was unaware and I found no reference to this in the manual, I lifted off a couple of the plastic engine covers and readily found a made in Italy speaker/sound-generator box. I disconnected the two wire plug to it......and the quietness returned. Error code appeared, however: "E-Sound" not operational.......wish I could disable this function another way, but I can't see how. The error code is not terribly annoying other than the fact that it comes on everytime I start the car (dealership lent me their demo for a few days so that is how I was able to sort this out). I'm all for pedestrian safety, but I don't live in an urban setting and prefer the silence. I wonder if the error code would go away if I simply jumped the two wires going to the stupid E-sound box...........any electrical engineers out there?

Robotpedlr

Can you post a pic of the speakers/sound generator... curious if they are on my SEH.

ndx

It can be disabled with Piwis

gman99

here's a picture-see attachment

gman99

Forgive my ignorance but what is piwis?

Robotpedlr

Darn, mine has it also. I removed it and tried to figure a way to defeat it. No love w/o getting the eSound error. I removed the box, not much in there but a speaker and two wires. Tried to jump the wires, no luck. I will have to figure out the PIWIS option.

Here are some pics.

Tom M

You might be able to leave everything connected but stuff the front of the speaker with foam or cotton so it can't vibrate. No vibration, no sound.

Robotpedlr

That may be an option. Hoping some one smarter then me will figure how to just deactivate it. Maybe a resistor between the two leads.

Glad to know Porsche spent time building a warning into the MFD if you just unplug the speaker.

997xpress

Is this the reason?

https://www.federalregister.gov/arti...ctric-vehicles

Robotpedlr

Yep. I am sure that it is. Just like the confirm button we have to press before accessing the Nav and the stickers about air bags. Gotta love the bloated regulations we have.

gman99

I think that mechanically stopping the speaker cone from vibrating will work, but I worry that this solution could cause the speaker coil to heat up......perhaps excessively so......given that the speaker seems to be on at high volume at all times, I'd prefer to find another way to disable this system.....without having to deal with an error code every time I restart the car.

Earlier in this thread someone mentioned PIWIS......what is that?

AGARubberDuck

You can buy high-watt ceramic resistors in 2, 4 or 8ohm configurations. I don't have a e-noise unit available, but I'd check the wattage and impedance of the existing speaker and simply replace it with an appropriately-sized ceramic resistor, such as can be found at Parts-Express:
http://www.parts-express.com/dayton-...esistor--004-8

AGARubberDuck

PIWIS is the diagnostic tool the dealerships (and some flush indies) use to diagnose and code different modules in Porsches.

Robotpedlr

Thanks for the info... I went to the garage got out my trusty multi-meter and took the unit apart to measure. Once apart, I noticed the speaker actually had a sticker on it stating 4 ohms (measured 3.5 with my meter). But nothing stating the Watts. Is there an easy way to figure that out? I know it is some factor of volts and amps, but no clue to to decipher that based on the wiring in the car.

I would like to try the ceramic resistor if I can figure out which one I need.

Thanks

snzuloz

You just require a resistor that matches up fairly closely to the speaker, it says 4 ohms of resistance on the speaker, just need to install one resistor to mimic the speaker being in the system.