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Gary, ASE Certified Technician
Category: Porsche
Satisfied Customers: 1002
Experience:  Senior Technician
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Have a 2005 911 S Cabriolet and water leaked in and caused

Customer Question

Have a 2005 911 S Cabriolet and water leaked in and caused electrical issues. Dried everything out and started the car with many codes, no surprise there. Went to start it again to bring to dealer and nothing. Battery is fine. Any way to override so I can drive it to the dealer?
Submitted: 11 months ago.
Category: Porsche
Expert:  Gary replied 11 months ago.

Hi Mark,

It would safer for you and your hip pocket, to have the car towed to your Porsche dealer.

Depending on what module/s are affected, would determine the reason for the no start condition.

That's what I would do.

I have seen too many people try their own repairs that end up costing more than the dealer would.

Hope this helps you, and hope the dealer will sort it for you.


Customer: replied 11 months ago.
Why did it start the other day and not today
Expert:  Gary replied 11 months ago.

That is a good question.

Water does not go well with electronics.

I would say the Body Control module is not recognizing your key to allow engine start.

The fault could be the BCM, a blown fuse etc.

I've seen many problem cars, and a lot with one-off faults.

Best for the dealer to look at it for you.


Expert:  Gary replied 11 months ago.

Hi Mark,

How did you go with your car problem?

I hope my advice has been of assistance to you.

Kind regards