C220 w204 brake pipe.

[whitefang]

YaoFaFa Brake Bleeding 3L Brake Bleeder Kit,Manual Brake Fluid Pressure Bleeder with 1L Brake Fluid Extractor & 2PCS Cylinder Adapter Suitable for Most European Models and ABS Systems
https://amzn.eu/d/aZrhPa7


I seen this kit on Amazon.
This will do my job you think.
I've never used these.

Thanks

 

[whitefang]

Morning...
Folk.. I was thinking.. (yeah go on laugh.. my & thinking in the same sentence.) but if my abs pump is being a pain for me to bleed the brakes. Can I open a rear brake line on the abs pump. & see if there's any air come out of it the & then re do the same line back at the caliper.?

I have the above bleeder tool coming today / tomorrow.

Just a thinking on my cell.
I've said nothing to dad, he'll probably slap me all over.. never been beaten by brake bleed.
A power steering pump bleed got us a while ago but still got it without any special tools or anything.

Talk you later.
Thanks

 

[whitefang]

Hi all.
How you doing..

I went to the car today (Thursday 24 October).
Lifted the bonnet. . Resovour is full. Put my bleed pump tool (same identical in #21.)
Put 2 litre dot 4 in .
Went to rear driver & opened nipple, connected waste bottle to nipple.
Pumped 15 psi into bleeder.
& At 1st nothing,
Then started the car (engine running) then started to run out. ..not like if I get a dish washing up soap bottle & squeeze it & soap shoots out, but fluid came ran out with no air bubbles.

Next wheel.
Next wheel.
Next wheel.

Now all 4 as I say like how I say the 1st wheel is.

Still no pedal.

I have been looking online, about does an abs pump need bleeding, if air lock is in or suspect to be air locked.

My father & a good friend (old school mechanic's.) they like to strip & rebuild, there not really into this plug car in diagnose & repair. So there convinced.

When I looked at my abs pump.
It says ABR. +Part numbers & ....

I then looked online for something to say if this is same as ABS.

I'm sure I seen somewhere saying that the car as to be plugged into diagnostic to bleed the ABS, as the solenoid's may have air trapped & the diagnostic tool will allow the solenoid's to open or do there thing so it can bleed.

Is this correct..?

Is that the same as ABR. .?

The father & good friend, are convinced that the servo ..master resovour.. the ABR pump have no damage.
Just a air lock.

Thanks folk.

 

[OneForTheRoad]

Did you start at the back ones first ? Your meant to do them in a diagonal order , starting with a rear .

You can also fubar the rubbers in the slave / master cylinder , pumping the pedal too much.

 

[whitefang]

How you onefortheroad.

The father & good friend are convinced that the cylinders are ok.
Can't recall what both said. I did ask or say to them ...do you think we could of damaged the rubbers.. & both said ----someting---(no.. very unlikely).

Yes, we went in-turn

Thanks onefortheroad.

 

[whitefang]

Hi all.
I'm just convinced the car as to be plugged into diagnostic tool, & the abs as to be told to purge air. As there's a good few solenoid's in there & could have air trapped.
Think I read somewhere that the w212 as 12 solenoid's in the pump, & not basic 8., don't quote me that case I read it wrong.

I seen a diagnostic tool ... Foxwell nt630 plus .... on Amazon that can do abs bleed.
Any of you folk used this tool.?

Another friend as the launch x431 ___ & he said that can do abs bleed, but he's in another country & that x431___ is a few quid out of my league.

Thanks folk.

 

[whitefang]

Sorry....

Not sure if it's anything...

The car is ....
W204 .. C220 CDI (which I say in #1), it's 2013..

I believe the w205 came in 2014 / 2015.

Cool...

 

[whitefang]

Hi all, good evening.

I don't no if to start a new or carry on with this subject.
So il stay on this one, if you think I should start a new, please just say.

So any ways...
You no my car ..year..& it problem.
To recap.
Brake pipe to the back burst.
Part was cut out & repaired.
It burst whilst driving the car, so master cylinder went dry.
We put dot4 in the master cylinder.
Tried to bleed it 2weeks ago il say, but was getting no were.
I brought a pressure bleeder (same as above #.?)
Tried this .. pressure'd between 15 - 20psi.
Got fluid out of all caliper nipple's (in turn & in sequence,),very little air bubbles.
Brake pedal is none existent.
Tried to bleed for few hours... No.

So I got a foxwell nt630 plus, which is meant to be able to abs bleed, as I read all over the internet that some folk have been successful.
So today, connected my pressure bleeder, got the car ready to bleed.
Plugged in the nt630 plus, & guess what...nothing, it don't read or see a abs bleed program.
So, next we took car on a gravel / grass carpark road (about 2minutes max away) & hit the brake pedal hard to activate the abs (so the pedal hits your foot), did this about 4 times, then re-bleed the caliper nipple's again.
What I did notice was the back brake discs (both sides , including the front both sides) was hot. Hot that you won't touch it again if you get me.
That tells me that the brakes back & front are working.
But why is the pedal basically none existent.?

A guy with a diagnostic unit.. snap on... what model snap on I don't no, but I thought yes... & this guy owns his own car repair garage & works on different cars. He said that his snap on don't see any abs bleed function.
But did say that there's air in the abs unit.

The car is 11 year old. I no that problems on cars can be slightly different & slightly different fix.
But surely this can't be a 1 in a million.

Any of you folk had this is the past or can say of a fix.. please say yes.

Next when I can get down to the car, we going to reverse bleed. I got a Sealy syringe / pump thing, so we going to put a tight fit pipe on the caliper nipple (open), then il say force dot4 back to the abs unit & not from the master cylinder to abs unit.
On the abs unit there is letters.
Do you no which pipes are to the rear, or even which wheel.?
Il reply with a photo of my abs unit & the Sealy syringe / pump thing in a few moments.

Thanks all. This is being a pain in the ****, & is giving a few people with a number of years experience a headache.

Thanks again. Any help is appreciated.

 

[whitefang]

Abs unit, not sure about the lettering by the pipes.
Thanks

 

[whitefang]

Sealey syringe pump thing.
Thanks again

 

[SpikyMikey]

Abs unit, not sure about the lettering by the pipes.
Thanks

Lettering:
V = front (vor in German)
H = rear (hinten in German)
L and R are left and right

 

[OneForTheRoad]

Lettering:
V = front (vor in German)
H = rear (hinten in German)
L and R are left and right

BMW ??

 

[whitefang]

Cool thanks both.
I tried yesterday to Google front on Google translate but got something else that didn't match.
Thanks both.

 

[whitefang]

Morning. I also forgot to say to last 2 replies.
Morning all

Im going to try the reverse bleed. Saturday.
Im correct am I.?

Open master cylinder resovour.
Connect a pipe to my syringe tool (above).
Put a bit fluid in it.
Put the other end of pipe onto caliper bleed nipple.
Then slowly force the fluid in.
Whilst asking my helper to watch for bubble in resovour.

Yes..

Do I need engine runner, ignition.?

Thanks team.

 

[whitefang]

Hi all.
I'm at work, & thinking ..lol..
I no what the job of the master cylinder &...
But I thought I'd look at 1 online & found this.
On my master cylinder I have (I think I have) 2 pipes going to the abs unit, because on the abs unit there are 2 pipes.

On the diagram (il reply with the diagram in a second), it shows like 2 chambers.
Because my pipe burst & I lost all fluid, could 1 of the chambers have air in.? (Now like I say I'm just thinking out loud).

Could I.. put a load of rag around the abs unit & put my pressure tool on the master cylinder & undo 1 of the big pipes on the abs unit (which I'm saying is coming from the master cylinder,) or would reverse bleed release the air bubble from the master cylinder.?

Thanks

 

[whitefang]

How Master Cylinders And Slave Cylinders Work And Their Importance

That's were I seen the photo I post.

Thanks

 

[Bellow]

You are being too harsh on the tester. The pipe's poor condition was your responsibility.
Have you bled the master cylinder? It ran dry you said. Likely it needs bleeding before any progress can be made.
Ignore the ABS unit for now. Even with trapped air, a decentish pedal is possible.
When bleeding rear pipes from dry it can be difficult to establish flow - pressurisation often won't move the fluid. Better is to open a bleed valve and stroke the pedal up and down half a dozen times to get the fluid moving and resort to standard bleed procedure once fluid is present at the bleed valve.
Hot rear brakes - binding park brake? Or, seized calipers or, collapsed flexible hoses - but for those possibilities the hydraulics would have to be functioning and they seem not to be.

 

[whitefang]

Morning all.
Thanks bellow.
No ..if you mean,was the master cylinder bench bleed, no the master cylinder as not been off car. Can it be done whilst on the car.?
No, the park brake - Flexi hose - calipers seem fine, the wheel brake discs are getting hot when hitting the brakes tho a few times.
Few weeks ago sister w205 needed rear pads. After we did them out of curiosity I put my fingers on my own pads to feel meat, & said within the next few weeks (before Christmas, before the weather goes to cold) we'll change them, & did notice the metal brake pipe (the part that connects to the hose) is / was a bit brown / rusty looking, while I'm doing pads il do line/s. The car is in for test in few days so the tester will see pipe & if it pass with inspection then all good, I'm changing them this week/ next week anyway. Stupid way of running tests anyway...do emissions first brakes last. Safety don't come into the test.
Untill I seen a picture of the master cylinder like above, I didn't think it could be air bubble or air trapped. If it can be done on the car either with reverse bleed or by taking 1 pipe of it & loads of rag, then that be sweet. I said that to my helper & he said very unlikely it's got air but could be.. could be air any where

Thanks bellow / all.
Talk to you in a while.

 

[Bellow]

Morning all.
Thanks bellow.
No ..if you mean,was the master cylinder bench bleed, no the master cylinder as not been off car. Can it be done whilst on the car.?
No, the park brake - Flexi hose - calipers seem fine, the wheel brake discs are getting hot when hitting the brakes tho a few times.
Few weeks ago sister w205 needed rear pads. After we did them out of curiosity I put my fingers on my own pads to feel meat, & said within the next few weeks (before Christmas, before the weather goes to cold) we'll change them, & did notice the metal brake pipe (the part that connects to the hose) is / was a bit brown / rusty looking, while I'm doing pads il do line/s. The car is in for test in few days so the tester will see pipe & if it pass with inspection then all good, I'm changing them this week/ next week anyway. Stupid way of running tests anyway...do emissions first brakes last. Safety don't come into the test.
Untill I seen a picture of the master cylinder like above, I didn't think it could be air bubble or air trapped. If it can be done on the car either with reverse bleed or by taking 1 pipe of it & loads of rag, then that be sweet. I said that to my helper & he said very unlikely it's got air but could be.. could be air any where

Thanks bellow / all.
Talk to you in a while.

OK, you have some comprehension of 'bench bleeding' a master cylinder. This was a new concept to me I learned about as the truck I run needed it doing. From the same sources I learned it can be done in situ. That requires that the MC be loosened at its mounting and manipulated to be horizontal. From memory a combination of tilting it and stroking its actuation rod (that connects with the pedal) gets the job done as the aim is to get trapped air to rise and exit at the fluid surface. Bench bleeding involves blocking off the outlet ports (my new MC was supplied with blanking plugs for this) and stroking the piston until all the air is expelled upward and out of the fluid. Take care as the fluid can 'geyser'. Installing the MC in the car, removing the blanking plugs at the last minute and connecting the lines is an opportunity for air to enter so you are probably as well just do it in situ. You can also bleed at the pipe unions at the MC. A combination of both in situ - expelling air upwards followed by bleeding at the unions will likely get the job done. Maybe worth finding a few YouTube videos on the subject to get a better idea - and for anything I've missed/forgotten.

Re heat in rear brakes - once the bleeding is done that can be investigated. Possibly during the 'MOT' brake testing a piston has been pushed out further than before and has stuck there. It'll be easier sorted after bleeding.

 

[whitefang]

Thanks bellow.

A guy that owns his own garage doing mechanics as living, came down the other evening, he said he stays away from mercs & that he & another place said brake bleeding on them can be a nitemare.
1st ever for me.

I see a few using vacuum bleeding.

So got me thinking (a few minutes ago actually), if I put my pressure bleeder on resovour.. Then went to wheel 1, (using rag), open nipple, connect my syringe tool (as above), then pressure.up to 20psi on pump. Then went to my open nipple with syringe on & slowly sucked the fluid as well.

This could do it yes.?
Would act as vacuum.?

Thanks