Help Needed - Upgrade to LED front lights

[jamesevelynclarke]

So, having bought a MY08 Cayenne S with all the toys, the one thing that I still really wanted to do was give the car the more aggressive front fender and lights from the GTS/Turbo. I've managed to source these but now face the task of replacing the standard front fender and lights with this new stuff.

The fender replacement itself is straight forward but I have an outstanding issue regarding the front lighting units (direction lights and LED daytime running lights). The orange direction indicators are styled differently in the GTS (from vertical in the S to horizontal in the GTS located under the LEDs) but they use exactly the same bulbs so there is no electrical work needed here, just the new lamp/fender housing, which I have. The outstanding problem is the daytime running lights changing from a regular 5W5 bulb (i.e. a regular 12v bulb) to the LED strip, which I think is a 2Volt item.

Basically I need to understand what, if any current adjustment I need to make to power the LEDs correctly. The `control unit' shown in the tech diagram lighting page doesn't say if this is to regulate the voltage for the LEDs or whether it relates to the headlamp unit, or both. On the 997 Turbo the LEDs have a control unit so I'm guessing the Cayenne LEDs must need one as well?

If anyone with electrical knowledge has any ideas on this, please say as this is the only outstanding item to be resolved before I start the project (gulp)! The local dealer was not much help!

Tks

J

[gts_fan]

Hi! A few my friends make the the same mods as you, one of them told me, that just connect DRL with new housing. Thats all

[Nick_USA]

There is also a PIWIS setting for LED Lights that needs to be set otherwise the lamp warning (Bulb Failure) will be on.

[jamesevelynclarke]

Ok, So there isn't a voltage issue I need to worry about and I can just take the normal bulb feed and connect to the LED unit?

The PIWIS setting I can get done at my local dealership.

Tks

J

There is also a PIWIS setting for LED Lights that needs to be set otherwise the lamp warning (Bulb Failure) will be on.

[RFM]

PIWIS settings are likely to a complete Cayenne LED conversion (front and rear), i may be wrong.

[jamesevelynclarke]

Hi - could you just check with them that there were no other changes? Just back from the dealership and they have told me this cannot be done as the GTS has a completely different control unit and `gateway', whatever that is. If you know people who have made the change I'd really appreciate a few more details, especially as the LED units are a different voltage to teh normal side lights.

tks

J

Hi! A few my friends make the the same mods as you, one of them told me, that just connect DRL with new housing. Thats all

[Nick_USA]

PIWIS settings are likely to a complete Cayenne LED conversion (front and rear), i may be wrong.

The LED settings are in the FRONT Control Unit only

[RFM]

That's the problem, Cayenne's use different electronic systems as 997 TT and generation-2.

[gts_fan]

The control unit in S the same as in GTS/Turbo.

Yesterday (04/17/2009) we have installed the Turbo bumper with turbo lights (the wiring housing for LED was taken from VW) . I have just connect the wiring to new housing without any mods with PIWIS. Everything works fine (but as for me for whole GTS retrofit facelift it nessesary to install GTS front lid air duct 95557542350, 'case the S air duct not the same as GTS - especially the top).

Edited April 17, 2009 by gts_fan