718 Brake fluid flush
 

I need to flush/replace brake fluid prior to a track weekend, as I did many times over the years when tracking my '83 911 and then a 2002 996 C4S. However, the owners manual for my 2019 Cayman GTS says "don't try this at home." Any idea why? Has anyone done a brake fluid flush on a 718? I hate to think what the dealer would charge! Thanks for any thoughts/advice. (And apologies if this has already been addressed; I couldn't find any postings on it.)

I did a flush on my 718 and it was really no different than doing it on my 993. Biggest PIA was dealing with the lug bolts instead of studs, which I have since converted.

Welcome to the forum.

Somewhat surprisingly our local dealer is quite reasonable on the brake fluid renewal.

Nonetheless it is a straightforward job on the 982 as part of track day preparations.

Porsche wheel R&R hardware makes fitting easier than many marques.

https://cimg4.ibsrv.net/gimg/rennlis...b769150de6.jpg


https://cimg3.ibsrv.net/gimg/rennlis...e5388ee495.jpg

https://cimg9.ibsrv.net/gimg/rennlis...cf74f33eeb.jpg

https://cimg0.ibsrv.net/gimg/rennlis...12583dfb4f.jpg

I did my GTS also. Nothing different than other cars.

Nice pictures. A couple of dumb questions: anything needed other than brake fluid and motive bleeder? (Does the bleeder come with all the tubing you need?) Can you do this with a floor jack only, one wheel at a time? What do you mean by "R&R" hardware?

I'd like to do this for my 991.2 (coming up on 2 years), and eventually my 718. Dealer 6+ hour round trip, so I've done oil changes and would like to add brake flush, pads when needed.

You need a bottle and tube to collect the fluid. You can do it one wheel at a time, just takes longer. The R&R tool is to make it easier to reinstall the wheel. Here is one from amazon.

splinterAMG can you give some insight as to the procedure you used to get your car up on four jack stands? Where did place your jack?

Thanks to all responders. And Splinter, thanks for the great photos of a beautiful Boxster (and PCCBs)! I too wonder what your jacking technique is to get all four feet off the ground. And Greg, thanks for the link to the R&R tool. I'd fabricated one when I had my 996, but gave it to the new owner.

Old thread but curious if you know how much fluid per wheel is required for a full flush? I can't find details in the manual, I was going to get some blue fluid and do a full flush just to figure out but apparently that is now a no go. I did a flush last year and just ran 1.5L through the system but looking to change from 660 to SRF and would like to get a full flush without wasting too much fluid.
Thanks

I do mine with 1.0 L total, with Endless RBF650

For those interested here are some of the top tier brake fluids as reported on Build Journal



https://cimg3.ibsrv.net/gimg/rennlis...3d35239906.png

Endless is my favorite fluid too - this is factory fill in all the Porsche race cars...

My process is to jack the passenger rear high enough to place the front passenger stand, lower the car, repeat on the driver's side, then jack from the rear center of the car for the rear stands.
https://cimg3.ibsrv.net/gimg/rennlis...80d475bac5.jpg

If you get a Quick Jack, it makes life a lot easier!
https://cimg7.ibsrv.net/gimg/rennlis...b4ce1a642d.jpg

Thanks guys, appreciate the knowledge!

Where can you safely jack from the rear center of the car?

You don't need to if you get these (only need one pair and pair of regular jack stands for front):

http://www.jackpointjackstands.com/