[RACE M3]

Has anyone figured out how to bleed at home?

I have a pneumatic bleeder from the caliper, pressure bleeder from the top or maybe a time consuming gravity bleed?

[moproblems]

Pressure bleeder from the top and a bootleg copy of ista+

[RACE M3]

Originally Posted by moproblems

Pressure bleeder from the top and a bootleg copy of ista+

Thank you! I’ll look into that!

[FISH22]

I’ve been doing a lot of research on this through the F90 forum, as they have the same brake by wire and calipers. The consensus over there was a pressure bleeder and ista if you’d like to cycle ABS and get a full system flush.

[BMWRacer523]

Originally Posted by FISH22

I’ve been doing a lot of research on this through the F90 forum, as they have the same brake by wire and calipers. The consensus over there was a pressure bleeder and ista if you’d like to cycle ABS and get a full system flush.

Are you sure F80 had brake by wire? I can understand using ISTA to flush the fluid that is in the ABS unit but I thought those could be pressure bled the old way? With G80 you need ISTA to actuate the electronic master cylinder. I had the dealer do it last season. Likely do the same again in March.

[drzoom]

Originally Posted by BMWRacer523

Are you sure F80 had brake by wire? I can understand using ISTA to flush the fluid that is in the ABS unit but I thought those could be pressure bled the old way? With G80 you need ISTA to actuate the electronic master cylinder. I had the dealer do it last season. Likely do the same again in March.

Has anyone used a 3rd party bi-directional scanner tool to do this instead of ISTA?

[FISH22]

Originally Posted by BMWRacer523

Are you sure F80 had brake by wire? I can understand using ISTA to flush the fluid that is in the ABS unit but I thought those could be pressure bled the old way? With G80 you need ISTA to actuate the electronic master cylinder. I had the dealer do it last season. Likely do the same again in March.

F90 (M5), not F80.

And I thought the same as you.. assumed some type of actuation would be needed on the master cylinder, but I guess not?

[BMWRacer523]

Based on what I’ve read on this forum from others who did it you do have to use ISTA to actuate it else the system throws codes. Haven’t looked into getting ista or if another software can do the actuation. My usage is that I flush breaks once a season so seems easier to have dealer do it.

[FISH22]

Originally Posted by BMWRacer523

Based on what I’ve read on this forum from others who did it you do have to use ISTA to actuate it else the system throws codes. Haven’t looked into getting ista or if another software can do the actuation. My usage is that I flush breaks once a season so seems easier to have dealer do it.

I started looking more into this… I found an illustrated parts breakdown for an M5CS, and it looks like a standard brake booster/MC setup. But obviously the G8x illustration clearly shows a servo actuated MC.

[Jon H]

Originally Posted by drzoom

Has anyone used a 3rd party bi-directional scanner tool to do this instead of ISTA?

I thought I remember someone recommending a specific brand on one of the FB forums and uses it regularly for brake bleeds on our car. Forget the brand but I remember it was on amazon.

[FISH22]

Originally Posted by Jon H

I thought I remember someone recommending a specific brand on one of the FB forums and uses it regularly for brake bleeds on our car. Forget the brand but I remember it was on amazon.

Good to know there’s something out there. And I wonder if this device is for activating the MC, or maybe just putting the rear calipers into service mode like bimmerlink (I have that and it’s amazing for the electronic e-brake).

I’m slamming my head against the wall trying to think of ways this could be done and the actual plumbing from the MC down. I would assume a pressure bleeder could work, as it’s not relying on the brake pedal like a standard bleed; and just the bleeder, no software assists.. and possibly battery disconnected.

I’m seriously considering just going to town and figuring this out. If she dies, she dies.

[Jon H]

Originally Posted by FISH22

Good to know there’s something out there. And I wonder if this device is for activating the MC, or maybe just putting the rear calipers into service mode like bimmerlink (I have that and it’s amazing for the electronic e-brake).

I’m slamming my head against the wall trying to think of ways this could be done and the actual plumbing from the MC down. I would assume a pressure bleeder could work, as it’s not relying on the brake pedal like a standard bleed; and just the bleeder, no software assists.. and possibly battery disconnected.

I’m seriously considering just going to town and figuring this out. If she dies, she dies.

The few that I looked at say "ABS Bleed." Going through some of the comments, it appears you can also put the rear brakes into service mode as well. Might pick one up to try and if it doesn't work, send it back I guess.

And Rocky IV quote

[BMWRacer523]

Seems like you would need an ICOM Next A and a subscription to BMW OSS

https://www.dealer-pc.com/independen...ct/icom-next-a
https://www.dealer-pc.com/independent/oss

Aside from the fact that the ICOMs are back ordered, the OSS subscription is $2500/year. Ok for a shop but less value for a home enthusiast. You can sub for $30/day so that would be a decent option if the HW was available.

cracked version: https://www.autonumen.com/goods-6983...RoCqyEQAvD_BwE

[moproblems]

Originally Posted by BMWRacer523

Seems like you would need an ICOM Next A and a subscription to BMW OSS

https://www.dealer-pc.com/independen...ct/icom-next-a
https://www.dealer-pc.com/independent/oss

Aside from the fact that the ICOMs are back ordered, the OSS subscription is $2500/year. Ok for a shop but less value for a home enthusiast. You can sub for $30/day so that would be a decent option if the HW was available.

cracked version: https://www.autonumen.com/goods-6983-BMW-ICOM-NEXT-A-B-C-with-Software-Plus-EVG7-Tablet-PC.html?gclid=CjwKCAiA8OmdBhAgEiwAShr403DoRoGXhL7n vXs8dXShPuUStCWUnVeX95bs3sVcEYGyBfJWaGMu_RoCqyEQAv D_Bw

I don't understand why this is "what you need" when it really isn't. A laptop, hardwired enet cable and a bootleg copy of ista will do every service function on the car and has service manuals.

[BMWRacer523]

Originally Posted by moproblems

I don't understand why this is "what you need" when it really isn't. A laptop, hardwired enet cable and a bootleg copy of ista will do every service function on the car and has service manuals.

I meant to go it legit. I'm in the software business. I don't use bootleg sw. If the ICOM can be purchased for a decent price I do not mind paying the daily subscription when I needed to do something.

[Ximian]

Pro-tip: Get your brake fluid replaced at the dealer at the start of track season, then just pressure bleed the calipers before a track day while making sure the reservoir is topped off.

You don't need to bleed the ABS if you fluid is fresh, which it would be if it was done yearly. Remember that brake fluid doesn't circulate so getting the fluid out of the caliper is the priority.

[drzoom]

I’ve successfully used a Motive pressure bleeder on my E46 and E63 before with no issues. What makes our cars incompatible with these? Here’s a link to a similar tool on Amazon:

Motive Products, European Power Brake Bleeder, 0100, Hand Pump Pressure Tank with Adapter https://a.co/d/7cRzHeQ

Mine came with compatible adapters.

[FISH22]

Originally Posted by drzoom

I’ve successfully used a Motive pressure bleeder on my E46 and E63 before with no issues. What makes our cars incompatible with these? Here’s a link to a similar tool on Amazon:

Motive Products, European Power Brake Bleeder, 0100, Hand Pump Pressure Tank with Adapter https://a.co/d/7cRzHeQ

Mine came with compatible adapters.

That’s where I think the mystery is. I don’t think the brake by wire has any impact on being able to pressure bleed. Considering there’s a servo between the brake pedal and MC, I’m assuming the traditional brake bleed using the pedal is the only thing out the window. ?

[ginohhh]

Any update on this? I got a track day in a few weeks. Trying to prep my car for the track. Not sure if should use my motive bleeder w/ the car off and flush it that way or just cough up $150-200 and have stealership do it.

Anyone had the balls to pressure bleed it using the motive bleeder?

[RACE M3]

Originally Posted by ginohhh

Any update on this? I got a track day in a few weeks. Trying to prep my car for the track. Not sure if should use my motive bleeder w/ the car off and flush it that way or just cough up $150-200 and have stealership do it.

Anyone had the balls to pressure bleed it using the motive bleeder?

There’s a guy one Facebook who bleed his car with the battery disconnected and had no problem.

[ginohhh]

Originally Posted by RACE M3

There’s a guy one Facebook who bleed his car with the battery disconnected and had no problem.

OP, Have you had enough courage to try it yet?

[RACE M3]

Originally Posted by ginohhh

OP, Have you had enough courage to try it yet?

Not yet, I have two cars on jackstands. I need at least 1 car that works lol