Cayenne biodegradable wires - Porsche Cayenne Forums : Porsche Cayenne Forum
 
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post #1 of 5 Old 03-05-2020, 05:42 PM Thread Starter
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Cayenne biodegradable wires

I've seen a few references to the wires going bad on a Porsche Cayenne because they are biodegradable.
This is typically seen in the headlamp wiring harness. Is this wiring issues something that affects all the wiring in the car?
I've only seen mention of it with regards to the headlamps. Is this only a headlamp issue? Or due to exposure/location are the other wires not
affected by the degradation?
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post #2 of 5 Old 03-06-2020, 01:06 PM Thread Starter
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Delete Me. Duplicate post.
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post #3 of 5 Old Yesterday, 07:19 PM
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Biodegradable wiring in a vehicle? I don't think so. They would be crazy to put wiring into a car that degrades, especially with vehicles staying in service longer and longer. And to the extent that cars are recycled and not put into landfills, that would be another reason not to need to use biodegradable wiring.

Wiring, where it has issues in any vehicle, is usually at the clips where the wiring attaches to the part. Moisture has an access point and can create corrosion, especially in climates where road salt is used for winter road maintenance.

I had an issue with my oil level sensor. Turns out it was corrosion in the wiring clip connection between the sensor and the wire. Cleaned the corrosion, problem solved.
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post #4 of 5 Old Today, 02:55 PM Thread Starter
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Quote:
Originally Posted by iTradeShips View Post
Biodegradable wiring in a vehicle? I don't think so. They would be crazy to put wiring into a car that degrades, especially with vehicles staying in service longer and longer. And to the extent that cars are recycled and not put into landfills, that would be another reason not to need to use biodegradable wiring.
...
It's a real issue, not limited to Porsche.
https://us.autologic.com/news/automo...-deterioration

Hoovie of youtube mentioned it in his Porsche Cayenne video. Had the front lamp harness replaced.
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post #5 of 5 Old Today, 04:33 PM
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I've seen this before , their not biodegradable. On Porsche headlamps the water gets into them and with the water and heat from lights it starts to make all the plastic coating crack and fall off and then you have bare wires.
My passenger headlamp needed new wires because of this exact reason.

The same thing will happen when you get the water under your carpets in the front from rainwater/ac unit.
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