Very informative thanks. Spent the the last 2 days with my B6 A4 on the driveway changing brakepads and calliper hoses all around and also swapped out a seized offside front caliper...ended up having to fit a new offside brake pipe also back to the ABS pump because the pipe was corroded. Used VCDS to cycle the ABS pump and bled all lines and I seemed to have a nice hard pedal, put everything back together and brought the car for a spin and the pedal is flat to the mat! UGH FFS!! Another day at it tomorrrow!
Ok I have a small computer but I’m doing this myself… can I after I fill brake fluid, connect hose to bleeder and put into a bottle with brake fluid in bottom, open connector/bleeder, turn abs on, and then pump brakes until the abs turns off? Then close bleeder and go around car like that?
I've bled the ABS using a VAG COM and the brake peddle is hard when the engine is off but when you start the engine and press the brake peddle it goes to the floor. Any ideas? It's a 2003 Passat B5.
This is just the cars brake diaphragm pump working, when driving and operating the brakes this assist with your pedal push, if you press the pedal with engine off it will go firm, keep the pedal down and turn the engine on and the pedal will go to the floor proving this system works.
Thanks for your vídeo! I’ll try this in Brazilian car, I think is the same code (001) or output test, I’ll see this tomorrow. I have an question, I really need use a “gas pump” to create a suction of my fluids? I could just fill with dot 4 when the abs make a pump job for me? Thank you again! Your answer will help me a lot!!! We don’t have correct professionals here :/
This looks like a Bosch 5.3 unit. Could you explain how Bosch 5.7 ABS/EPS would be bled differently? Is it in principle self-bleeding since it has no external pump, and no VCDS-procedure is really necessary?
Quick search on the internet yielded this: "If you have VCDS, run a scan. When it comes to the ABS Brakes control module, VCDS shows the ESP version right at the top of the display. If it is ESP 5.3, you have the pump which may need bleeding (via VCDS). This is not a issue with ESP 5.7 as there is no pump." So as I take it, you just bleed it normally like a car without a pump. How it works, is it calculates the speed, steering angle sensor, yaw / pitch / roll sensors, braking valves and engine power. Then it makes necessary corrections using the valves to provide more or less braking force to certain calipers while shifting power to the other wheels. In turn, this will correct the yaw pitch and roll of the vehicle keeping it moving in a straight path.
VW Golf V 2005 with ABS on all 4 wheels. I has a soft pedal for a long time. Not close as hard as my Passat 2006 with a similar system. Do i need to do the ABS pump procedure on both axles? One axle a time? (I have a pressure bleeder and VCDS).
Hi Dave thanks for taking the time to make this video. My question is: After you have the system set up do you then push on the brake pedal and then have someone open the bleeders to force fluid into the ABS pump to prime it? Note: Once the brake pedal hits the floor u anchor it there and then start the pump. Thanks Peter .
Our pleasure. Yes, you depress the pedal 95% of the way, then run the pump. I wouldn't go all the way to the floor, but close to it. No need to prime it even if you have just replaced the pump. There is still fluid in the system that will pull it though when the pump runs. Just make sure you have fluid topped off all the way to the top of the reservoir and check it regularly.
Dave just a follow up. If you are bleeding manually (ie tube in bottle) do u start pump open 1st bleeder, finish, than open 2nd and cycle pump till all air removed from front bleeders? Thx
On this model, you start with the ABS pump. After that, bleed the brakes as normal. Start at the Rear Right, Rear Left, Front Right and Front Left. On rare occasions, there are still a few little air bubbles that don't come out 100%. So I've had to repeat this process from the start. I typically use about 1 liter of brake fluid and it's a good idea to fully flush all the all the old fluid out.
I think I just have some 1/8" ID - 1/4" OD vinyl hose. You can get that anywhere. Sometimes the Auto Parts store, but Hardware store always have it. Lowes or Home Depot. www.lowes.com/pd/HydroMaxx-1-8-in-ID-x-1-4-in-OD-x-100-8217-Flexible-Non-Toxic-Clear-Vinyl-Tubing/1002931446
I originally had an implausible signal g201 brake pressure fault on my 2002 S3. I changed that sensor which then showed an electrical fault in circuit. Then the abs module failed. Having replaced both sensors and swapped the module, vcds now shows electrical fault in circuit for both sensors but no other faults. The garage were unable to perform a pump bleed or output test at the time of installing. I noticed on rosstec that a possible remedy for the faults I have is a brake pump bleed. Is it possible that because this procedure wasn't done, this is why the module sees the faults? When the car went in to have the module replaced, the fault was only on one sensor as well which is making me think the module needs to be calibrated correctly.
If they didn't bleed the system, there will be massive amounts of air in the pump and controller. This could potentially damage the unit. From a legal standpoint, It is their obligation to complete the entire repair with the proper tools. Not only that, if you crash your car because they did not complete the repair properly, they are liable for your accident.
@@MeisterWerks thank you for the reply. Unfortunately their vcds was not working at the time so they couldn't do it. I don't use the car much but hoping this will resolve the issue I've got when it goes in next week. Great video. Very informative 👍
Hi! awesome video, just confused why the same set up is not used on rear breaks, are rear brakes on this 99 passat non abs that we are not using scan tool to cycle abs pump to bleed rear lines?
Thank you. Depends on the options, year and model. On this '99 Passat (FWD), it does not have ABS on the rear. Most newer cars have ABS on all four corners. So when you're bleeding the ABS, the VCDS / VAG-COM (or similar scan tool) will tell you what brake caliper to go to, when to open the line and when to close it.
Hi, is this procedure necessary if the ABS system hasnt been opened or fiddled with in any way? Im trying to bleed the brakes on my B5 A4 with a pressure bleeder, ignition on. Afterwards the pedal goes almost to the floor, but the car stops. Do i need to keep bleeding it or could there be something wrong with the ABS system? No codes present. ABS works.
Yes it is very necessary. You have to get ALL the air out of the ABS system and by pass the master cylinder when doing so. If you don't, you brake system will never be bled correctly.
Hello! I've been doing some work on the abs module in my car and I am not able to screw in the out lines for the rear wheels in the abs module. It leaks brake fluid. Do you know how to solve that? Thanks a lot!
They have to be torqued correctly. Make sure the threads are not messed up. Also check the brake line flare. If there is any imperfections in it, it will not seal right. Here are the torque specs for a B5 Tightening Torques Brake lines to ABS module: Thread M 10 x 1 .................... 14 Nm / 10.3 ftlbs / 123.91InLbs Thread M 12 x 1 .................... 14 Nm / 10.3 ftlbs / 123.91InLbs
Invaluable video - Thank you Dave. Can you please clarify that the ABS does not relieve the rear brakes? I just verified in the Bentley manual for model year 1999 thru 2004 that there are ABS inlet and outlet valves going to all four brake lines. In addition each wheel has an ABS sensor. It would seem that the ABS relieves all four brake calipers. Thanks.
Hi! Thanks for the helpful video. I have a question: making some pressure (like 1bar) in the brake fluid reservoir instead of using the sucking device will do the trick either?
Thank you! Our pleasure. Vacuum machine works. Pressure pot like a Motive pressure bleeder also works (sometimes better). Bring it up to 2 bar / 25psi and bleed away. We have both. NOTE: Never use both vacuum and pressure at the same time. Use only one or the other. We've found that the pressure and the vacuum at the same times creates an air pressure difference and can actually pull air back up into the lines.
Yes. You must compress the master cylinder piston (hold the brake pedal in) to bypass and pressurize any air that becomes trapped in the master cylinder. Since the ABS is fed brake fluid by the master cylinder and reservoir, compressing the brake pedal will allow the air trapped in the master cylinder to bleed through. If you don't, you will never bleed the system properly and air will remain in the master cylinder. Also, you do not want to max out the pedal all the way to the floor, you want about 75-80% of the pedal pressed down. Maxing out the pedal travel can blow out seals inside the master cylinder due to overpressurization. If you need someone to hold the pedal down while you perform this task, you can purchase a brake pedal jack tool / holder. Most auto parts stores have them or Amazon. Here is a link to Autozones: www.autozone.com/test-scan-and-specialty-tools/brake-tool/oemtools-brake-pedal-jack/802194_0_0 Here is a link to one on Amazon: www.amazon.com/dp/B01G7I4VGC
@@MeisterWerks Thanks for the reply, looks like I'm bleeding them again then, I did it but without depressing the pedal, I assumed it was working as the fluid was coming out quicker when the ABS was activated.
@@dandan556 No problem. When bleeding the ABS pump, VCDS / Ross Tech VAG-COM and the Launch x431 Pro tells you at each step when to depress and release the brake pedal. Not sure about any other scan tools though.
Hi Dave, l am upgrading to vcds from vcds lite to perform the same procedure on the ABS. I was wondering where you found the procedure that was specific to your vehicle. My car is a 2001 audi a6 quattro and
The VAG-COM software is Ross-Tech VCDS. You can download it for free. However you will need a Ross Tech cable to get full functionality out of the software. You can get cables off eBay or Amazon, but I do not know if those work with this feature. The cable I am using is the full version HEX + CAN cable which they do not sell any more. The website is www.ross-tech.com/vag-com/
Hey I have a 2001 Audi A4 B5 1.8TQM do you know if I should go with the Output tests 03 or basic settings 04 route? I have ESP under the “component” slot it says I have a “ABS/ESP allrad D56”
No you do not have to, but this will not bleed the ABS unit. You have to use a scan tool to activate the pump and push the fluid / pump the air out of the ABS system.
Right - I have a VAGCOM - just confirming that I don’t need to push the pedal down (like you did in the video) if I’m using a pressure bleeder (while running the VAGCOM cycle).
@@scottbettencourt4051 You do not want to use the pressure bleeder for bleeding the ABS pump. Just make sure the reservoir is topped off. Follow the directions on the VCDS. If you're bleeding the ABS system, you have to hold the brake pedal down - no pressure bleeder. If you're just bleeding the brakes, as normal (IE flushing the fluid only), you do not have to hold the brake pedal down. You only need to run the VCDS ABS bleed procedure if, a) you have changed the pump, or b) you have an excessive amount of air in the system and can not get the air out.
I have the g201 fault...yay So vcds/abs bleed the fronts together. Then bleed the rears, together or one at a time on the rear? Do I then do a full normal bleed, ie front left front right, rear left rear right right? Cheers. From the uk
For the rears you do them left then right manually. VCDS will tell you which one to do and in what order. For this year and model the rears do not have ABS.
@@toddy9141 You'll need to do each one, one at a time with that vehicle. You only really need to do it if you've removed calipers or the brake master cylinder / booster.
If your bleeding the brakes, us a pressure bleeder / vacuum bleeder only. If you're bleeding the ABS pump you MUST use a scan tool to turn on. Not sure if you can use a pressure bleeder or not. You might be able, I've never done it, post up here if it works. I also looked up the wiring diagram on this specific model and you can not jump the pins to turn it on. It works on an internal relay, not accessible from the pins. The only way would be to remove the ABS modules case and do it right on the circuit board. If you mess it up, you'll be buying a new ABS control module. So at that rate, you might as well get a ODB11 or VCDS VAG-COM cable.
No you do not. As long as the tubes are submerged below fluid in the bad fluid drain cans. This will help with allowing air to go back up the tube once the pump has stopped.
The abs pump is not hooked up to the rear brakes, so it would not pump through the 2 rear lines. The 2 rears must be done through pumping the brake pedal.
@Daniel Holý Depends on the year. On this specific B5 1.8T Passat (1999) , it only had them in the front. When you run the VCDS it will determine if you need to do the rears also.
@Daniel Holý You are correct. I do the front ABS. Then bleed the rear brakes as normal. Right Rear, Left Rear, Right Front then Left Front. There are times that I've had to do it a few times like that, but typically after that it's fixed. If it's not, it could be the master cylinder that is failing.
@@MeisterWerks Hi, I replaced rear clippers, and front right flex hose, and did normal bleed procedure of just pumping, holding and bleeding, everything was OK and going good, then all od a sudden pedal went to flor, I taught Master cylinder went bad so I replaced it and did procedure from your last comment on Polo 9n 2003 (with catch can, and nothing happens, abs starts buzzing but no fluid is coming to all 4 calipers? Is it possible that ABS module went bad although it is buzzing when I use Delphi diag to do a procedure? Also instructions are not clear enough, do I do RR, LR, RF, LF the same way you do in this procedure on video: to fix catch can start ABS, then open the bleed screw and before it finishes, I close the bleed screw and repeat proces, although it says in procedure to pump the brake 10 times without closing the screw, I guess they mean taht when you have vacuum. But non the less I did it with pump start open the screw and bleed a little then closing the screw before abs pump stops, but still no fluid is coming to calipers.
Same concept but slightly different procedure. You have to have either BMW ISTA or a scan tool that will allow you to activate the ABS Pump. Our Launch x431Pro will do this, but we also have ISTA & ISTA P for this. There are a slough of other scan tools that will do this as well. Autel MaxiCheck Pro, Schwaben Professional and Bosch ADS X, just to name a few.
Very informative thanks. Spent the the last 2 days with my B6 A4 on the driveway changing brakepads and calliper hoses all around and also swapped out a seized offside front caliper...ended up having to fit a new offside brake pipe also back to the ABS pump because the pipe was corroded.
Used VCDS to cycle the ABS pump and bled all lines and I seemed to have a nice hard pedal, put everything back together and brought the car for a spin and the pedal is flat to the mat! UGH FFS!! Another day at it tomorrrow!
Of corse. Thank you for the feedback.
Great video. I often have to refer to a video to help others with questions that are hard to explain.
Thanks man.
One of the best, most informative ABS bleed videos I've found on UA-cam. Most lack this level of detail.
Thank you for the feedback.
I feel the same way
Ok I have a small computer but I’m doing this myself… can I after I fill brake fluid, connect hose to bleeder and put into a bottle with brake fluid in bottom, open connector/bleeder, turn abs on, and then pump brakes until the abs turns off? Then close bleeder and go around car like that?
Thank you so much, i’ve been having this constant issue
I'm glad this video has help out so many people. I had no idea we would get a response like this.
I've bled the ABS using a VAG COM and the brake peddle is hard when the engine is off but when you start the engine and press the brake peddle it goes to the floor. Any ideas? It's a 2003 Passat B5.
did you fix the issue?
Did you resolve thw issue? If so what fixee it?
This is just the cars brake diaphragm pump working, when driving and operating the brakes this assist with your pedal push, if you press the pedal with engine off it will go firm, keep the pedal down and turn the engine on and the pedal will go to the floor proving this system works.
Thanks for your vídeo! I’ll try this in Brazilian car, I think is the same code (001) or output test, I’ll see this tomorrow. I have an question, I really need use a “gas pump” to create a suction of my fluids? I could just fill with dot 4 when the abs make a pump job for me? Thank you again! Your answer will help me a lot!!! We don’t have correct professionals here :/
You can use a catch bottle for each side. You don't have to have the suction device.
This looks like a Bosch 5.3 unit. Could you explain how Bosch 5.7 ABS/EPS would be bled differently? Is it in principle self-bleeding since it has no external pump, and no VCDS-procedure is really necessary?
Quick search on the internet yielded this: "If you have VCDS, run a scan. When it comes to the ABS Brakes control module, VCDS shows the ESP version right at the top of the display. If it is ESP 5.3, you have the pump which may need bleeding (via VCDS). This is not a issue with ESP 5.7 as there is no pump." So as I take it, you just bleed it normally like a car without a pump.
How it works, is it calculates the speed, steering angle sensor, yaw / pitch / roll sensors, braking valves and engine power. Then it makes necessary corrections using the valves to provide more or less braking force to certain calipers while shifting power to the other wheels. In turn, this will correct the yaw pitch and roll of the vehicle keeping it moving in a straight path.
Here is a video that explains it.
ua-cam.com/video/Y2uXzp2HzKg/v-deo.html
VW Golf V 2005 with ABS on all 4 wheels. I has a soft pedal for a long time. Not close as hard as my Passat 2006 with a similar system. Do i need to do the ABS pump procedure on both axles? One axle a time? (I have a pressure bleeder and VCDS).
Hi Dave thanks for taking the time to make this video. My question is:
After you have the system set up do you then push on the brake pedal and then have someone open the bleeders to force fluid into the ABS pump to prime it?
Note: Once the brake pedal hits the floor u anchor it there and then start the pump.
Thanks
Peter
.
Our pleasure. Yes, you depress the pedal 95% of the way, then run the pump. I wouldn't go all the way to the floor, but close to it. No need to prime it even if you have just replaced the pump. There is still fluid in the system that will pull it though when the pump runs. Just make sure you have fluid topped off all the way to the top of the reservoir and check it regularly.
Dave just a follow up. If you are bleeding manually (ie tube in bottle) do u start pump open 1st bleeder, finish, than open 2nd and cycle pump till all air removed from front bleeders?
Thx
On this model, you start with the ABS pump. After that, bleed the brakes as normal. Start at the Rear Right, Rear Left, Front Right and Front Left. On rare occasions, there are still a few little air bubbles that don't come out 100%. So I've had to repeat this process from the start. I typically use about 1 liter of brake fluid and it's a good idea to fully flush all the all the old fluid out.
Excellent video. Many thanks for this. What size is the clear pipe/tubing you are using for this, and where do you buy yours?
I think I just have some 1/8" ID - 1/4" OD vinyl hose. You can get that anywhere. Sometimes the Auto Parts store, but Hardware store always have it. Lowes or Home Depot. www.lowes.com/pd/HydroMaxx-1-8-in-ID-x-1-4-in-OD-x-100-8217-Flexible-Non-Toxic-Clear-Vinyl-Tubing/1002931446
I originally had an implausible signal g201 brake pressure fault on my 2002 S3. I changed that sensor which then showed an electrical fault in circuit. Then the abs module failed. Having replaced both sensors and swapped the module, vcds now shows electrical fault in circuit for both sensors but no other faults. The garage were unable to perform a pump bleed or output test at the time of installing. I noticed on rosstec that a possible remedy for the faults I have is a brake pump bleed. Is it possible that because this procedure wasn't done, this is why the module sees the faults? When the car went in to have the module replaced, the fault was only on one sensor as well which is making me think the module needs to be calibrated correctly.
If they didn't bleed the system, there will be massive amounts of air in the pump and controller. This could potentially damage the unit. From a legal standpoint, It is their obligation to complete the entire repair with the proper tools. Not only that, if you crash your car because they did not complete the repair properly, they are liable for your accident.
@@MeisterWerks thank you for the reply. Unfortunately their vcds was not working at the time so they couldn't do it. I don't use the car much but hoping this will resolve the issue I've got when it goes in next week. Great video. Very informative 👍
Hi! awesome video, just confused why the same set up is not used on rear breaks, are rear brakes on this 99 passat non abs that we are not using scan tool to cycle abs pump to bleed rear lines?
Thank you. Depends on the options, year and model. On this '99 Passat (FWD), it does not have ABS on the rear. Most newer cars have ABS on all four corners. So when you're bleeding the ABS, the VCDS / VAG-COM (or similar scan tool) will tell you what brake caliper to go to, when to open the line and when to close it.
Hi, is this procedure necessary if the ABS system hasnt been opened or fiddled with in any way?
Im trying to bleed the brakes on my B5 A4 with a pressure bleeder, ignition on. Afterwards the pedal goes almost to the floor, but the car stops. Do i need to keep bleeding it or could there be something wrong with the ABS system? No codes present. ABS works.
Yes it is very necessary. You have to get ALL the air out of the ABS system and by pass the master cylinder when doing so. If you don't, you brake system will never be bled correctly.
Great video! So for the rear brakes do I bleed them the normal way without VCDS tool?
Hello! I've been doing some work on the abs module in my car and I am not able to screw in the out lines for the rear wheels in the abs module. It leaks brake fluid. Do you know how to solve that?
Thanks a lot!
They have to be torqued correctly. Make sure the threads are not messed up. Also check the brake line flare. If there is any imperfections in it, it will not seal right. Here are the torque specs for a B5
Tightening Torques
Brake lines to ABS module:
Thread M 10 x 1 .................... 14 Nm / 10.3 ftlbs / 123.91InLbs
Thread M 12 x 1 .................... 14 Nm / 10.3 ftlbs / 123.91InLbs
Can you bleed with just the vagcom and not all the other gear
You just need something to catch the fluid. Technically, you don't need the vacuum, but it does help.
Invaluable video - Thank you Dave. Can you please clarify that the ABS does not relieve the rear brakes? I just verified in the Bentley manual for model year 1999 thru 2004 that there are ABS inlet and outlet valves going to all four brake lines. In addition each wheel has an ABS sensor. It would seem that the ABS relieves all four brake calipers. Thanks.
I believe this varies by vehicle....
Hi! Thanks for the helpful video.
I have a question: making some pressure (like 1bar) in the brake fluid reservoir instead of using the sucking device will do the trick either?
Thank you! Our pleasure. Vacuum machine works. Pressure pot like a Motive pressure bleeder also works (sometimes better). Bring it up to 2 bar / 25psi and bleed away. We have both.
NOTE: Never use both vacuum and pressure at the same time. Use only one or the other. We've found that the pressure and the vacuum at the same times creates an air pressure difference and can actually pull air back up into the lines.
Is it necessary to press the brake pedal down? If so why?
Yes. You must compress the master cylinder piston (hold the brake pedal in) to bypass and pressurize any air that becomes trapped in the master cylinder. Since the ABS is fed brake fluid by the master cylinder and reservoir, compressing the brake pedal will allow the air trapped in the master cylinder to bleed through. If you don't, you will never bleed the system properly and air will remain in the master cylinder.
Also, you do not want to max out the pedal all the way to the floor, you want about 75-80% of the pedal pressed down. Maxing out the pedal travel can blow out seals inside the master cylinder due to overpressurization.
If you need someone to hold the pedal down while you perform this task, you can purchase a brake pedal jack tool / holder. Most auto parts stores have them or Amazon.
Here is a link to Autozones: www.autozone.com/test-scan-and-specialty-tools/brake-tool/oemtools-brake-pedal-jack/802194_0_0
Here is a link to one on Amazon: www.amazon.com/dp/B01G7I4VGC
@@MeisterWerks Thanks for the reply, looks like I'm bleeding them again then, I did it but without depressing the pedal, I assumed it was working as the fluid was coming out quicker when the ABS was activated.
@@dandan556 No problem. When bleeding the ABS pump, VCDS / Ross Tech VAG-COM and the Launch x431 Pro tells you at each step when to depress and release the brake pedal. Not sure about any other scan tools though.
Is this procedure for all cars with abs
Hi Dave, l am upgrading to vcds from vcds lite to perform the same procedure on the ABS. I was wondering where you found the procedure that was specific to your vehicle.
My car is a 2001 audi a6 quattro and
an unable to locate it.
Thx
@@peterhilbert6428 Did you find how to run the abs pomp?
@@MKasap-te8vm Yes, VCDS LITE will not run the pump as l was told. You need the full version.
Is that computer program downloadable free? Also what kind of USB cable are you using?
The VAG-COM software is Ross-Tech VCDS. You can download it for free. However you will need a Ross Tech cable to get full functionality out of the software. You can get cables off eBay or Amazon, but I do not know if those work with this feature. The cable I am using is the full version HEX + CAN cable which they do not sell any more.
The website is www.ross-tech.com/vag-com/
Hey I have a 2001 Audi A4 B5 1.8TQM do you know if I should go with the Output tests 03 or basic settings 04 route? I have ESP under the “component” slot it says I have a “ABS/ESP allrad D56”
well done video
Are you not supposed to bleed rear brakes first and then front?
If I'm using the pressure bottle (Motive) method am I correct that there is no need to push down the brake pedal?
No you do not have to, but this will not bleed the ABS unit. You have to use a scan tool to activate the pump and push the fluid / pump the air out of the ABS system.
Right - I have a VAGCOM - just confirming that I don’t need to push the pedal down (like you did in the video) if I’m using a pressure bleeder (while running the VAGCOM cycle).
@@scottbettencourt4051 You do not want to use the pressure bleeder for bleeding the ABS pump. Just make sure the reservoir is topped off. Follow the directions on the VCDS.
If you're bleeding the ABS system, you have to hold the brake pedal down - no pressure bleeder. If you're just bleeding the brakes, as normal (IE flushing the fluid only), you do not have to hold the brake pedal down.
You only need to run the VCDS ABS bleed procedure if, a) you have changed the pump, or b) you have an excessive amount of air in the system and can not get the air out.
@@MeisterWerks Thank you!
good job done
I have the g201 fault...yay
So vcds/abs bleed the fronts together.
Then bleed the rears, together or one at a time on the rear?
Do I then do a full normal bleed, ie front left front right, rear left rear right right?
Cheers. From the uk
For the rears you do them left then right manually. VCDS will tell you which one to do and in what order. For this year and model the rears do not have ABS.
Cheers mate
Forgot to add, my car is an 2007/8 Audi A3 2.0tdi sline
@@toddy9141 You'll need to do each one, one at a time with that vehicle. You only really need to do it if you've removed calipers or the brake master cylinder / booster.
Thanks mate
Appreciate your advice 👍🏻
@@toddy9141 Our pleasure. Thank you for the feedback.
Hi. Can I use a pressure bleeder instead off a vacuum bleeder?
If your bleeding the brakes, us a pressure bleeder / vacuum bleeder only.
If you're bleeding the ABS pump you MUST use a scan tool to turn on. Not sure if you can use a pressure bleeder or not. You might be able, I've never done it, post up here if it works.
I also looked up the wiring diagram on this specific model and you can not jump the pins to turn it on. It works on an internal relay, not accessible from the pins. The only way would be to remove the ABS modules case and do it right on the circuit board. If you mess it up, you'll be buying a new ABS control module. So at that rate, you might as well get a ODB11 or VCDS VAG-COM cable.
@@MeisterWerks thanks for your reply. I have a vcds I use on a laptop.
Is the vacuum bleeder really needed if the pump is pumping fluid?
No you do not. As long as the tubes are submerged below fluid in the bad fluid drain cans. This will help with allowing air to go back up the tube once the pump has stopped.
May I do it side by side of front brakes? As i don't have two hoses and T adaptor
For this year, the factory manual says to do the fronts at the same time. If you don't have a T connector, just use two different bottles.
No needing to bleeding the rear wheels?
This year and model does not have rear ABS.
Good
Hi dad
if you can do 2 lines at one time,
can you do all 4 at the same time?
The abs pump is not hooked up to the rear brakes, so it would not pump through the 2 rear lines. The 2 rears must be done through pumping the brake pedal.
Yes, exactly what James said. You need a pressure bleeder and/or someone to pump and someone to open and close the rear brake valves.
@Daniel Holý Depends on the year. On this specific B5 1.8T Passat (1999) , it only had them in the front. When you run the VCDS it will determine if you need to do the rears also.
@Daniel Holý You are correct. I do the front ABS. Then bleed the rear brakes as normal. Right Rear, Left Rear, Right Front then Left Front. There are times that I've had to do it a few times like that, but typically after that it's fixed. If it's not, it could be the master cylinder that is failing.
@@MeisterWerks
Hi, I replaced rear clippers, and front right flex hose, and did normal bleed procedure of just pumping, holding and bleeding, everything was OK and going good, then all od a sudden pedal went to flor, I taught Master cylinder went bad so I replaced it and did procedure from your last comment on Polo 9n 2003 (with catch can, and nothing happens, abs starts buzzing but no fluid is coming to all 4 calipers?
Is it possible that ABS module went bad although it is buzzing when I use Delphi diag to do a procedure?
Also instructions are not clear enough, do I do RR, LR, RF, LF the same way you do in this procedure on video: to fix catch can start ABS, then open the bleed screw and before it finishes, I close the bleed screw and repeat proces, although it says in procedure to pump the brake 10 times without closing the screw, I guess they mean taht when you have vacuum.
But non the less I did it with pump start open the screw and bleed a little then closing the screw before abs pump stops, but still no fluid is coming to calipers.
شكرا
how can i get that pump
Pump is located in the engine compartment attached to the ABS control module.
Can I do this manually without the computer?
you can! pressure bleeder and follow procedures
You can but this way you won't get any trapped air out of the ABS pump
You have to bleed it with a proper scan tool. If you don't, there will be trapping air in the ABS pump causing the brakes to be soft.
So what do you do if you DO NOT have all these tools ???????? Better to show how to without them.
Get a different car or stop being a brokeass
Is it the same on a bmw e46?
Same concept but slightly different procedure. You have to have either BMW ISTA or a scan tool that will allow you to activate the ABS Pump. Our Launch x431Pro will do this, but we also have ISTA & ISTA P for this. There are a slough of other scan tools that will do this as well. Autel MaxiCheck Pro, Schwaben Professional and Bosch ADS X, just to name a few.
Can you pressure bleed (Motive, etc.) using the same method?