Cayman 2.9 coolant bleed after hose replacement

[Cromwell]

I need to replace the leaking lower coolant hose in the front wheel arch, thought I’d give it a go at home after reading the guide in the technical section. It looks straight forward enough but I could do with more information on topping up and bleeding (burping) the system afterwards.

Its a Gen 2 so doesn’t have the bleed valve by the filler cap.

Can anybody point me in the right direction for a guide or even write a quick step by step on how they bled theirs with details of which caps to open, where to add the fluid etc.

Thanks in advance...

Matt

 

[Motorhead]

Matt,

Haven't done the job myself, so can't give hands-on tips, but I think you'll need to get the engine cover off to get access to the expansion tank cap and bleed valve. The dealers use a vacuum device to evacuate the system but I believe it helps to raise the rear of the car to assist in getting the air out. It's a big coolant system so you'll probably need to run the engine for quite a while to get all the air out.

You may find this link useful, although I'm sure there's more information online:

https://www.pelicanparts.com/techarticles/Porsche-987-Cayman/08-WATER-Coolant_Flush_and_Replacement/08-WATER-Coolant_Flush_and_Replacement.htm

Jeff

 

[Cromwell]

Hi Jeff,

Thanks for the link, the vacuum method is probably the safest way, I was hoping there was a diy method to save the expense and allow me to complete the job at home.