ABS brake bleed/flush with PIWIS, iCarsoft or similar
#16
Rennlist Member
Thread Starter
I might be wrong, but I don't think you'll find a Mac-compatible scanner. If you're using an Intel-based Mac you could always use Boot Camp. I would highly recommend NOT using Parallels or Fusion to update the firmware.
#18
#20
RL Community Team
Rennlist Member
Rennlist Member
If you know what you're doing, there's virtually zero risk.
If you're in over your head at the very thought of plugging that thing into a computer... honestly, there's still very little risk unless you have an unstoppable urge to suddenly and randomly unplug things within reach.
I suspect getting Windows running on bootcamp or some other VM engine might be your biggest hurdle. All smooth sailing from there.
If you're in over your head at the very thought of plugging that thing into a computer... honestly, there's still very little risk unless you have an unstoppable urge to suddenly and randomly unplug things within reach.
I suspect getting Windows running on bootcamp or some other VM engine might be your biggest hurdle. All smooth sailing from there.
#21
Zylinderkopfdichtung suggested not to do so in Parallels, so I felt I should also put disclaimer to what I did. I did mine a few months ago and I didn't hesitate or think there'd be any risk. Yes, you're passing through the device from laptop to vm, but if it's detected, it's available to the vm.
If the device can't be found in the VM or you are cautious, Bootcamp on Mac would be more native, just like using a Windows PC.
If the device can't be found in the VM or you are cautious, Bootcamp on Mac would be more native, just like using a Windows PC.
#22
Burning Brakes
Can the POR 2.0 do ABS cycle?
#23
Rennlist Member
Amazingly something as affordable as the Porsche iCarsoft can do an ABS bleed. My Durametric for the 991 can't as stated in an email to me from Durametric a week ago. Sometime in the future they say...for a model that has been out over 10 years.
I just did an ABS bleed on my BMW motorcycle last summer. Same thing, while the ABS is activated, you squeeze the lever and pedal several times. Incredible that I could get a diagnostic app for my Android Phone and Tablet for €50 (about $58) that does things the ultra-expensive GS911 does not do.
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Zylinderkopfdichtung (02-05-2022)
#24
Rennlist Member
Adding to this thread so that it can helpful future diy’ers.
I installed new calipers (S calipers) on my 991.1. During installation the fluid in MC fell below min and introduced air in ABS. To flush I tried iCarsoft v2 and P700 v2. Although they both advertise ABS bleed neither worked. I then purchased V3 and it worked as advertised. I wasted 3-4 liters of brake fluid with the previous versions so if you are planning to purchase iCarsoft for ABS bleed don’t waste time on versions other than 3.
After ABS bleed I still had air in the lines in 2 calipers. I was only able to find that out when I did a bleed post ABS bleed and bled from the inner nozzle. Note that for ABS bleed I only used the outer nozzle. I also tapped the caliper with a rubber mallet which seemed to dislodge some air as well.
So long story short- use iCarsoft POR v3 , bleed after ABS flush (both nozzle) and tap calipers gently.
Hope this helps someone as it would have def helped me.
I installed new calipers (S calipers) on my 991.1. During installation the fluid in MC fell below min and introduced air in ABS. To flush I tried iCarsoft v2 and P700 v2. Although they both advertise ABS bleed neither worked. I then purchased V3 and it worked as advertised. I wasted 3-4 liters of brake fluid with the previous versions so if you are planning to purchase iCarsoft for ABS bleed don’t waste time on versions other than 3.
After ABS bleed I still had air in the lines in 2 calipers. I was only able to find that out when I did a bleed post ABS bleed and bled from the inner nozzle. Note that for ABS bleed I only used the outer nozzle. I also tapped the caliper with a rubber mallet which seemed to dislodge some air as well.
So long story short- use iCarsoft POR v3 , bleed after ABS flush (both nozzle) and tap calipers gently.
Hope this helps someone as it would have def helped me.
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#25
Can you guys elaborate on what exactly this does? I have the same iCarSoft unit mentioned above (and a 981, but should work the same). You enable the feature and it prompts you along? You press down the brake pedal in order to make it do its thing? When it's 'tengaging ABS, is it pumping fluid out or is it just wiggling valves around to get air out?
Thanks!
Thanks!
#26
Rennlist Member
Can you guys elaborate on what exactly this does? I have the same iCarSoft unit mentioned above (and a 981, but should work the same). You enable the feature and it prompts you along? You press down the brake pedal in order to make it do its thing? When it's 'tengaging ABS, is it pumping fluid out or is it just wiggling valves around to get air out?
Thanks!
Thanks!
The tool prompts the user at each step so it is pretty straight forward. For each step it will ask the user to press OK (F2) so you have enough time to take the applicable action. It won’t go to next step till you press OK. During bleed for each corner it says to press/ release brake pedal. Make sure you don’t push the pedal all the way down. Just enough and do it in a controlled manner. I would recommend count 1-2 seconds down, hold for a second and then release slowly on 1-2 second count and keep repeating till tool states that the flush is complete for that caliper. During the right side caliper bleed the pedal would pulsate, harden, loosen etc accompanied by loud noises. It didn’t do that on the left side. For me the LR and LF only bled about 200 ml each. RR was 500 ML if not more and RF was 250 ml.
The combination of pressing/ releasing pedal, motive bleeder and AbS the fluid is def getting pushed. Went thought a full liter of fluid during the flush.
Don’t be intimidated. Just make sure to have extra new brake fluid on hand and do a flush afterwards. If I had to do it again I would bleed the inner nozzle for each corner after abs bleed while tapping the caliper.
Last edited by Ark20; 02-13-2023 at 08:01 PM.
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