Rising_Sun

Thanks Loren, there are a couple of garages locally who specialise in Porsche (non dealership) and I'm pretty capable with DIY (ive handled a boxster gearbox change to date) so I'll speak to the Indy about if they can diagnose for me and go from there. It's not an MOT issue (annual road safety check) and the lights do their basic job but I like my cars perfect!

Hi Just bought a 2007 Cayenne Turbo UK spec, everything is as it should be, and I'm very pleased with my purchase. I'm getting one small problem, and that is that there is the above error when I turn on the ignition. I've disconnected and reconnected the battery, no change. I've checked all the fuses, all ok. I've removed both headlights and reinstalled. The height adjustment seems to work, it does the self check and they move and set, then there is a twitch horizontally as presumably the dynamic cornering lights try to move, maybe they are working, I can't tell, or maybe that's the problem? Does anyone have any advice how to diagnose this error? Otherwise this car drives perfectly, it has xenons, height adjustable suspension etc, very nice car!

Ok I've had a recurrence, every now and again I get the PHC Failure warning. After some research I read the TSB and it suggested cleaning the connector on the pedal distance sensor, attached adjacent to the mast cylinder. Here is a photo of the sensor: http://www.autopartsway.com/PartList.cfm?Porsche/allY/allMd/allSmd/allEn/allB/Electrical,_Lighting_and_Body/Sensors/Brake_Pedal_Position_Sensor/pagenum1/tabS Fiddly to get to as it involves removal of a number of plastic panels, the wipers, and the most fun was the firewall panel section! Even more fun replacing all the above, particular cussing was heard when replacing the firewall and it's rubber seal :) Anyway I cleaned the connector and replaced it so let's see how it goes. Otherwise the cayenne is fantastic and runs really well.

Hi All, I've located the problem, quite simple really apart from the lack of space behind the dash. I located the servos, there are three I could see, and one under the dash controls the recirculation system. one nearest the shifter is the footwell, there’s one a little further up I assume that’s for the face vents or windscreen. In order to access the servos first remove the bottom panel, one torx screw nearest the seat in the centre, then drop the panel down & detach the 12v aux sockets (there’s 2 on mine). Also detach power from the footwell light. Then remove the glove box, very simple just a few screws then is drops away. Then you can see more. If you follow the wires you see the servos, all 3 are the same basic type. 3 screws hold each one on, that’s the more tricky part as they are fiddly, but once the servo is off you can test it. Mine was dead, but once I worked it a little it jumped into life, maybe it was jammed. I them popped the cover off and you can see inside, there’s a little motor in there and a few contacts, I cleaned it all up with contact cleaner lubricated it and reassembled it. Then hey presto I had a blast of air in the footwells. So that’s the first time for 4 years +, and the dash didn’t have to come out, thankfully. If it fails again I'll get a new solenoid, I think now I know I could replace it in 15 minutes. Hope this helps someone else, regards James

Thanks wvicary, I appreciate the response, If anyone knows the procedure that would be a bonus, otherwise I will do some further research, and post photos if I'm successful and fixing the issue.

Hi, I've had my Cayenne S 2003 for 2 weeks and it’s a dream to drive, one 500 mile round trip and it’s an awesome machine. I posted 2 weeks ago due to an intermittent error on the dash "PHC Failure". The car has just had a new battery and Loren advised it may need a reset. All I did was disconnect the battery earth under the seat for 10 minutes, and then reconnected it; it was as easy as that - Thanks Loren! Another minor problem is that there is no airflow to the footwells - neither one, the mechanism for the vents and screen works fine, but select footwell only and the fan sounds like its blowing against a closed shutter valve. I've loads of receipts for the car for routine maintenance, in 2008 there is mention of "investigate lack of flow to footwells" at a Porsche centre, they recommended removal of the dash to investigate and the owner presumably adopted not to do that. I'm pretty competent with most jobs but removal of the dash sounds like a pig of a job, is there a diagnostic for this job, or can anyone advise access to the components? I was going to remove the glove box and go from there, mine is a UK car RHD, and so glove box is on the left. I once had a Saab with a similar problem from new, it was a ball joint that was disconnected, just snapped it on and it worked, hopefully its as simple as that, hopefully its not a dash out job.... :-/ Any help would be really appreciated

Hi, I really appreciate the reply, thanks very much Loren. Only other thing I've had to do is change a headlamp bulb which turned out to be simple :thumbup: so I'm really pleased with it - great to be back with Porsche and renntech.org (the BMW Z4 was reliable but bland!). Cheers James

Hi All, Ben a while since I was on here as I sold a Boxster S 3 years ago, but I'm back now as I just bought a Cayenne S, an 03 with 55,000miles. Very nice throughout, drives smoothly and just had a major service including a battery and coil packs (all 8). its got a warning light, its showing PHC failure. I've understood this to be Parking Hill Control? Does anyone know the resolution to this problem? Any advice gratefully received!

Sounds similar to my problem after I cleaned the MAF on my 01 S I got slightly rough idling and then shortly after a CEL, I was cleaning for preventative maintenance but obviously this backfired on me! To resolve the issue I cleaned the MAF again, made sure it was dry and then reset the ECU (disconnect battery). After a test drive all was well again, smooth idling and no CEL. That was 1000m ago and all is well. I don't know how the idling can be upset but maybe as a sympton of the MAF suddenly delivering different data is enough to throw the system, hence requiring the ECU to learn the new settings. Another conclusion I made is - if it aint broke then don't fix it!

Great photos and very interesting to see, make sure you post a movie clip of the start up. Looks like a clean motor apart from the water pump catastrophie, moral is - when the dash lights up like a Christmas tree - STOP!

I've been over (and under) the car thoroughly, just to make sure the fluid didn't damage any more paint but I didn't check any wheelnuts so I think that is good advice - I might have been unlucky enough to get the same technician!

I have a 2001 Boxster S, full Porsche dealer history and doesn't have any problems, drives a dream, no noises..... etc. So I want to keep it like that, yes? Absolutely. So I booked it in to a UK Porsche main dealer for an annual service. My car hadn't done the mileage for an oil change so just needed the yearly check, so I booked her in, she also was due a brake fluid change so I gave that the green light too. We picked her up but the dealer had mistakenly carried out a different service, we also had an oil change! So I thought oh well, an oil change is a good thing (even if not due) so we came to a compromose financially and settled up. At that point my wife and daughter went north in the Boxster, and I went south, on business, this was a Wednesday. On Friday I came home only to be told off by my wife, she said "your car has been leaking oil" - there were three oil patches on the drive. My Saab was as dry as a bone underneath, puzzling. I looked under the newly serviced Boxster, and nothing either, which leaking car has been parking upon my drive! I took the Boxster for a spin, new oil and all! As I parked her up I noticed the tyre, black as the night, I thought "they really have carried out a great service as they have tyre blacked the tyres!" - ah but no, upon closer inspection the tyre was black as it was coated in brake fluid, as was the wheel, wheel arch, caliper and bumper! Brake fluid, I have always been told is agressive to paint, now I could dee the result. The front offside (right) caliper was leaking from the bleed valve. When I asked my wife to push hard upon the middle pedal there was a steady flow of brake fluid from the caliper. It looked to me as though the bleed valve had not been tightened fully after the fluid change. I called the dealer and whilst in, fairness, they were scheptical of the problem they took ownership and did the following: Collected the Boxster Left me with a car Re-sprayed the wheel Replaced the Continental N2 spec tyre Re-sprayed the bumper Replaced the caliper All, as you would expect at no cost. Now that I have my car back after the repairs I am very pleased. I would rather not have experienced the problem, after all a Brake fluid leak could have been very serious indeed, however the attitude of the dealer has been very impressive. In summary my dealer made a grave error, but at least they held their hand up and sorted out the problem and the consequences. Happy Porsche ownership continues!

Hi, I have realised that it is the rear wheel allignment setting that I need not the camber, ie the Toe in or Toe out figure. The bolt I removed was the adjustment bolt, the main arm that commected to the lower balljoint, this directly adjusts the toe. No other bolts were disturbed, apart from the rear tie rod joint, the adjustment bolt on this tie rod was not touched. Looks really simple to adjust so hopefully someone knows the figure. Thanks for reading!

I just fitted new boots to the left driveshaft. Rather than split the lower balljoint I removed the adjustment bolt for the rear camber, not realising it provided adjustment until it was too late! I've put the car back together and done my best to line up the bolt to their original position but I really need to get the settings checked out, does anyone know the correct settings for the front & rear? The car is a UK spec, Boxster S 2001 Thanks

Thanks for the details and links, great to see thinks in pictures. I will replace both boots whilst I have the driveshaft off. I have a balljoint tool, looks similar to the ones posted so I think I am all set! Just need to get the boots ordered now & this will be a job for next weekend. Thanks Again