um, what? What would make you think that brake fluid is flushed while doing pads. Most shops will simply push the pistons back into the caliper and suck out a bit of fluid from reservoir if its overfull.

No, as stated above, doing pads and rotors would not necessarily result in fluid be bled, flushed, or otherwise reviewed.

 

Gasp!

don't make me break into your garage and maintain your cars...

 

LOL. I meant my non P cars!! But if you insist on maintaining my cars...well, go for it.

But seriously though guys...the brake fluid replacement process is really easy. The hardest part about the process is removing the wheels.

 

I don't track my car and I normally schedule to do my fluid every 3yrs ... I tested mine last year after the 3rd year and the moisture was within spec so I went another season without issue. I will do it this spring along with my Cayenne which I have not done in 7yrs and from the amber color of the fluid I would say I am overdue !! I must say though the Cayenne still brakes like a champ !!

 

DOT 4 also has a higher boiling point.

• The dry boiling point of DOT 3 fluid is 205°C and its wet boiling point is 140°C.
• The dry boiling point of DOT 4 fluid is 230°C and its wet boiling point is 155°C.

As the 4 absorbs water, it lowers in boiling point. The result is brake fade as that moisture turns to steam (a gas). You don’t have to be just driving the car hard. If you live in a mountainous area or high elevation, you are also more susceptible.

 

How are you getting to the inner bleeder?

 

Please don't do it, then you can come on here and whine about having to replace brake components.. It's crazy that people will spend $100 to change perfectly good oil at 5k miles, but cry about spending $20 bucks in brake fluid every 2 years.. Beyond ridiculous..

 

Porsches aren’t for everybody.

 

I have been in dozens of cars and boiled the brake fluid, albeit mostly on track but it does include mountain driving, towing, spirited driving..... and trust me its not a good feeling. On track new OEM DOT 4 fluid will boil within 2-4 laps so the first mod to all my toy cars is a brake fluid flush, yes even a new car. The faster the car the easier it is to boil the fluid and todays cars are incredibly fast. That being said even my daily's get a flush every (2) years or sooner using at minimum 500F dry boiling point fluid. It cost me about $20 in fluid and an hour of time, why would you not want to do it?

 

Actually, the hardest part is determining when the old fluid ahs been repalced by the new fluid. If you do this every two years, the stuff coming out looks pretty much like the new fluid going in.

 

I helped my Dad flush the fluid in his 964 a few years back, because the best I could tell it hadn't been done in about 8 years (always serviced at a Porsche dealer, so go figure!) and the car was not safe to drive. The fluid came out fairly clear, but upon inspection there was significant corrosion and the pistons were binding. I took some pictures, I'll see if I can find them and post. Complete caliper teardown/rebuild was necessary (and one had to be completely replaced) to make the car safe again. Just spend the $20-$200. It's cheap insurance.

 

I hope I never see you in my rear view mirror

 

This. I've changed my pads multiple times and bleed the brakes but did not do a flush. No way any garage would do a flush gratis anyway. Super easy to flush the brakes - there is a nice youtube video from a Rennlister somewhere; just don't get the fluid on your paint.

I've seen your posts - you can brake into my garage anytime to wrench on my car...just have to fly 1500 miles or so to do it. Its warm down here...

 

I flush my brakes every year, preventative maintenance is bad.

 

The trick is to suck all the old fluid out of the reservoir first, then refill with new and start flushing. I use app (2) pints on these cars for a full flush.

The suction powered bleeders are my favorite as it is cleaner and easier however I do use pressure bleeders such as the Motive also.