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I have a 991 GTS, is wheel removal required for brake flush. I assume it would necessary be since there are bleed point on inner caliper.
Reason for asking is I was going to have it done at a local Audi dealer that is very good however if wheel removal is required I will take it to a Porsche dealer.
I have a 991 GTS, is wheel removal required for brake flush. I assume it would necessary be since there are bleed point on inner caliper.
Reason for asking is I was going to have it done at a local Audi dealer that is very good however if wheel removal is required I will take it to a Porsche dealer.
Mark
‘If you/mechanics can access the bleeder valves (2 per caliper) on top side through the wheels it’s not necessary to remove the wheels. The outer valves can be accessed normally (dependent of wheel type) from the wheel face, and in most cases the vehicle is up on a hoist to access the inside bleeder valves. I’ve witnessed my mechanic accomplish this during a brake fluid flush in 2016.
Since then I flush/bleed my own brakes and remove my wheels for easier access to each bleeder valve.
Like others before me said, you could do a flush without removing wheels.... But I tried that, and did one corner that way and was convinced I'd rather take the wheels off. I don't have a full lift, so maybe with a lift you can get below and it would be easier.
I just get the car up on stands, remove all the wheels, and do the flush easily. I work it out so that I do a full wheel cleaning/coating at the same time.
Since both sides of the caliper are connected with a hard line why is it necessary to bleed from both sides? With pressure pushing the fluid out and given enough fresh brake fluid why wouldn't it flush the entire caliper?
Since both sides of the caliper are connected with a hard line why is it necessary to bleed from both sides? With pressure pushing the fluid out and given enough fresh brake fluid why wouldn't it flush the entire caliper?
I will attempt to address your question. Most brake lines are flushed or s/b flushed under a two year maintenance cycle. The intent is to flush “all” the old brake fluid out and the most efficient manner is to bleed both sides starting at the furthest point from the reservoir. Since the hard brake line is mounted in a vertical center on each caliper most of the old fluid will remain in the outer chamber if you only bleed the inside valve. You may be able to bleed most of the old fluid out, but in the process you will use up more fresh fluid wastefully. Their is a chance an air bubble may be lodged in the outer chamber, but you may never know for sure unless both sides of each caliper are bled starting with the outer valve first. I hope I answered your question.
Last edited by Sidvicious7; 02-07-2019 at 02:58 PM.
02-06-2019, 05:35 PM
Brake flush with Centerlocks
