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2008 cayenne turbo wont start only Porsche logo on dash


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Dear all

 

 my cayenne wont start when i turn the key on ON position the dash logo well appear and i can use the radio 

 

pushing the brakes to start the car and turning the key nothing

 

looking forward to hear from you

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  • 3 weeks later...

There can be two supplies if you have a battery under the spare wheel but if you have only one battery it splits off to supply the electrics and the starting circuit. Follow the + line under the seat  and you will find fuses and the line to the power relay. Check where the power stops, could be a fuse or a starting relay problem.

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i kept pulling fuses from the driver side dash . then it woke the system  and the car  started

 

 

 

then took the battery for testing and i got a replacement battery  it was under warranty  

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 Thanks Red and Rick!  great info and definitely gives me a couple of leads to follow!  Got my fingers crossed that it’s the starter relay .  In my 06 CTTS it is under the cover between the brake fluid reservoir and the windshield. 

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pull the door trim and left up the drivers carpet

 

you well see bunch of wires going to the fuse box some of the wires are joint by the factory 

there known to rust .

if bad wires joint found connect them back together 

 

keep us posted 

 

some videos in YouTube for cayennes and touareqs should be helpful too

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 I started pulling fuses around the starter relay under the hood and the car came back to life .  Not sure exactly which fuse was the problem but none of them were blown.  It’s like it just went to sleep and then woke up . 

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