jpru2001

quick follow up:  secured service records from previous owner, it was a faulty headlight switch.  dealer had quoted him $400 for the fix.  the part was $75, plug and play, replaced in literally 5 minutes and full headlight function has returned.

Hello all, we just purchased a 2016 GTS.  Superb vehicle.  I've sorted through all of the used car issues I have found except one.  The headlights stay on all day even in sunny weather.  The headlight dial does nothing and the red light above the auto position stays lit no matter where I move the dial.  The dipped beam headlight indicator on the speedo stays on also.  So of course DRLs are always off.

I looked through the PCM menus, the lights menu on the speedo, and the owners manual and see nothing that indicates the DRLs could be cut off or the car could have auto or the headlights permanently turned on.

I suspect the previous owner had the dealer alter the headlight function using PIWIS and I will need a dealer or indy with PIWIS to return it to the default mode.

The other thought is a bad rain sensor that keeps the headlights on.

Does anyone have any other input?  Just want to make sure I am not missing a simple solution before I take it into our trust indy next week.

Thanks all in advance!

 

OK, so I bought the car and within the 5 weeks of ownership, had so many issues, enough was enough. The last straw was the prop shaft bearing failing. The car had only done 50,000 miles!!

Anyway, cut my losses and sold it - the 5 weeks of owning a 10 year old Cayenne lost me about £3250. I will never buy an old Porsche again. Next time (if ever), it'll be new!!

Thanks for all of the help from people on here over the last few weeks. A great forum with great, knowledgable members! Just wish I had come across it BEFORE I bought the 10 year old 'tractor'.

Yeah this isn't an issue with a cayenne....it's an issue with the owner....

Secondly buying a new porsche? How does that resolve your issue? Sounds like you have good problem solving abilities.....

Cars in general have life limited parts....the faster and more luxurious they are the more life limited parts they seem to have. With a cayenne you get both.

Owning a car like a cayenne is a hobby. If you can't handle that then go get a camry.

 

I got so sick of the problems my camry had I sold it lol.  battery, starter, alternator, brake calipers, front shocks, rack and pinion, power steering all in a six month period....of course it was my wife's car since before we got married so probably not one ounce of maintenance beyond oil changes.

I am in a Cayenne, but had that P0492 and it turned out pump had failed.  Impellar blades were all broken up.  Found another unit online.  Also had trusted Indy tell me that the air filter in front of pump gets brittle/dry rots after 10 years or so, will break apart, pump will suck bits through and snap blades...then blades get lodged and disrupt airflow.  so pump can be running because you hear the motor, but impellar blades are shot and its not really doing anything.

may not be your issue, but happened to me and Indy told me he has seen it a few times.  I was getting P0492 about once every couple weeks before I fixed it.

edit:  could not tell a difference in running rough/idle/etc and don't see how that would be related.

Thanks to both replys.

 

Regarding the A/C: this one has the basic A/C controls, don't remember seeing auto or showing the in cabin temp, maybe it was there or screen was bad....Being a mono-zone, it would be difficult to convert to a dual zone but was wondering if I could replace the A/C control switches to have more control options (I'm thinking the answer is no)

 

Rear side lights: the reading lights above the door (has like 2 or 3 modes: i.e. when car door open or select to "on" when in car or maybe one more.  One side, the light works in all positions, the other side, the light only comes on the "door open" mode but does not when in the set "on" mode, hopefully that makes sense.

ahh ok I didn't know the A/C temp/dual zone/auto was an option, figured that was standard.

can't help with the lights but I'd trying playing with the buttons  ;-)

So, looking at an 05 base with a few issues that appear fairly common, just want to see if I'm missing anything?  Any comments appreciated!

 

Instrument cluster appears to be almost out and will need repair/replace (costly? 500+?)

Basic air/conditioning (rear air flow is weak at best, appears no real fix?)  Can basic A/C be converted to show temp/auto etc...? Currently just has two switches (low/high fan and low/high for temp)

 

Side mirror does not adjust with auto controls (it does fold in) - would I most likely just need a new mirror motor?

 

Cornering light warning/malfunction - how big/costly can this get assuming its not just a bulb replacement?

 

Couple of the rear side lights come on when doors open but not when switched to "on", are there different bulbs i need to check out or possibly switches that get more expensive

 

Last, the remote has a rear hatch button (that is just to unlock it right? the later models open automatically correct?

my opinions:

instrument cluster:  as said above, mine goes out the warmer it gets...I just live with it.  But yeah I have seen several repair services in the 300-500 range.  can also find used clusters on ebay.

A/C:  not sure what you are asking?  you can set it to auto to go to whatever temperature you select...

cornering light:  it is usually the bulb or the metal contacts.  one 6mm bolt takes the headlights out (I am not very mechanical and can do it)....you slide it in and out, when replacing it you have to tighten the bolt while pushing the housing back on...as it slides in, the metal contacts on the back of headlight housing mate with the mounted contacts on the frame.  they are very sensitive and have to be slid back in perfectly, or any number of malfunctions or lights out error messages can happen.  Some people even remove the contacts so that they can fasten the two pairs together to ensure good contact.  not sure if this makes sense but I think pelican parts has a good tutorial.  I did it the other day by myself and I am a mechanic idiot.  but the cornering lights do go out, and they are also a common one lost when the contacts are not mated perfectly.  I had a shop do it the first time I lost a blinker...by the time they were done none of the lights were working...in researching this on the internet I read about it being common because headlights are not put back in correctly.  http://www.pelicanparts.com/techarticles/Porsche-Cayenne/07-BODY-Changing_Light_Bulbs/07-BODY-Changing_Light_Bulbs.htm

rear side lights:  not sure what you are asking

remote:  touch the hatch button and it unlocks....hold the hatch button down and it pops open just the glass portion.

We had good weather today and I drive home with no AC....no vibration at all...I saw several people trying that but never saw the explanation of what a likely diagnosis is if that is the case....any guidance?

I know most on here have a more significant issue, but I developed the idle drop vibration...relearned throttle response (thanks Loren) solved it 50%...ran a tank of Techron...relearned it again...90% gone.  About to do plugs and clean throttle body and see if that knocks it out...if not, I am sure the remaining slight vibration is engine mounts...but for a grand I am going to live with it.  :-)

Yeah I told them. I don't think they knew any better.

are you looking to buy?  I am in Columbia and went all the way down to Florida to save a few thousand.

just looked at the posting is deleted....wonder if someone informed him.

There are 05-06 Cayenne Ss out there for 10-13k.

I think the dude thinks he has a turbo.  I mean, the S is pretty fast and sounds great as it is, I could tell people that my S is a turbo and any non enthusiast would believe it.

I wonder if the seller is intentionally misleading or truly doesn't know...I wonder if he changed the decals on the back...

Do you have the premium Bose system with Amp and MOST connections?  If so, then you cannot just replace the head unit.  You either need to buy a MOST interface/adapter which are around $600-$700 or so, or replace the Amp as well and pull out all the fiber optics and replace with more conventional wiring.

At the couple of places I'd trust locally to do that, I have priced it and yes the install is as much as the equipment and that is just the nature of it.

That being said, there are a few complete replacements that some members on this forum have done and documented that look fantastic (although super complex for someone like me).

WHAT FUSE ?

sorry in my car it was right side dash, fuses 11 and 12, I think if I recall a 30A and a 15A.  And just to update 10 days later have had zero issues since I did this.

update:  finally located online fuse diagram that is honestly more complete than what is in my car, pulled fuses for 30 seconds for radio and amp, replaced, cranked car, fully functional immediately.  so...happy camper for now.  hopefully it doesn't resurface.  So a couple days of internet searching paid off.  Thanks for your contributions.

Follow up - would there be anything wrong with just scrapping the Bose system as a whole, installing a few new speakers, wiring them to a new head unit without the MOST system at all...willing to give up steering wheel communication, etc...i am still a little unsure if that would cause any issue with the rest of the car's functions.

Thank you for the response.   Looks like I need to just take it to an expert and stay away from the guessing!

Hello all - I am new to the forum as I recently purchased a 2004 Cayenne S.  I bought it because it was mechanically in great shape, and had no issues...except the radio.  I've installed various radios over the years so I figured this was no big deal.  As I have read these forums it seems like the radios on these cars are a nightmare.  I've done some searching but nothing has helped so far.

The instrument display says "NO RADIO" and the radio will just display "PORSCHE".  Pushing any button does nothing.

The first thing I want to try to do is remove the fuse for the radio to force a reboot...however my owners manual fuse diagram does not tell me which one is for the radio...does anyone know the answer to that off hand?

I've also read when you disconnect a battery that the radio "loses its match" to the car or something similar to that?  Any way for me to attempt to fix?  carfax says the car dealer put a new battery in it prior to selling it to me.

Also any other advice please let me know...