Porsche 911 2003

[robert1234]

Started Porsche ...noted radio wouldn't turn on ... Displayed Porsche only ...drove approx 1mile Porsche shut off at intersection ....tried to restart ...turn over but no start ???? Plenty gas ...batt good ...thinking it might have something to do with security lock down ??

[Loren]

How old is battery? If it is 4 years or more you likely need a new battery.

[judgejon]

The radio issue seems to be random and fairly common, but that in itself would not cause the car to lock down.  How's the alternator?  Is the battery charging?  Check for engine codes with a Durametric or Piwis at a dealer.

[JTT]

Another thing that seems to cause random electrical glitches is the ignition switch (not the mechanical part, but the electrical part).  I know my car would start intermittently last spring, and occasionally start them shut right back off.  After much worrying about expensive controller damage I took a chance and replaced this switch (>$20 at NAPA) and all issues solved.

[royp4]

Hey JTT, did you replace switch with the Audi equivalent? Just curious. Thank you.

[JTT]

Hey Roy,

Yes, in fact I used the NAPA one (even cheaper than the Audi one).  Working great, but I think I'll buy an Audi one to keep in glove box just in case.  The first time changing this is a bit of a PIA as there are tiny grub screws used to secure the switch in place, but very little room to manoeuvre a screwdriver.  I replaced those grub screws with M4 cap head screws that I ground the tip to a point (like the grub screws, to bite into the plastic when snugged).  As there is very little torque on these, I can now tighten and loosen with my fingers, making the job super easy and quick.

[Hilux2400]

On ‎26‎/‎12‎/‎2016 at 6:14 PM, robert1234 said:

Started Porsche ...noted radio wouldn't turn on ... Displayed Porsche only ...drove approx 1mile Porsche shut off at intersection ....tried to restart ...turn over but no start ???? Plenty gas ...batt good ...thinking it might have something to do with security lock down ??

On the same model as yours I have had this happen a few times.   It's been linked to either the battery running low or disconnecting the battery.   But you won't need the code as this model automatically finds it.