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Problems after front disc and pad change

For some years now it has been recommended that older cars with ABS that to avoid expensive repairs, the pipes should be clamped and the nipple undone to avoid pushing any debris back into the ABS pump.
 
Not strictly true. The unassisted feed is connected to the pedal master cylinder just as normal. Only the high pressure application is carried out by the booster motor instead of a servo.

You still cant bleed or change the fluid without STAR and it takes 1 to 1½ hours to do it, that is one bit that you cant DIY
 
I know that and didn't say otherwise.

Just another reason to avoid SBC..
 
I know that and didn't say otherwise.

Just another reason to avoid SBC..

Sadly if you want a SL or any other car that has it, you have no choice.

I wonder if Bosch and MB are doing any more research on the SBC system,or are they only working on the newer system
 
I wonder if Bosch and MB are doing any more research on the SBC system,or are they only working on the newer system

Interesting question.
Hard to see them bothering again as SBC has been the single biggest recall and rework programme in MB history.

And it's not finished yet.

What advantages does SBC offer that can't be achieved with a conventional servo braking sytem?
 
Interesting question.
Hard to see them bothering again as SBC has been the single biggest recall and rework programme in MB history.

And it's not finished yet.

What advantages does SBC offer that can't be achieved with a conventional servo braking sytem?

True as for the not finished bit as the SL has got a few more years to run in its current shape.

My Acrobat failed to work to day but all of the advantages are in these PDF's so I could not put up the exact page
http://www.mercedestechstore.com/pdfs/index.htm
They do not mention the disadvantages :confused::confused: Cant think why
 
Malcolm

I doubt that the SL has got a few more years left with it's current shape.

There were some spy pictures recently on some forum or other showing the highly revised SL on test with barely any comouflage, and looked to be ready to launch next year.

It was following the lines of recent Merc thinking in that it had a very upright front to give it more presence.

It was not unlike the front of the 107 featuring the star grill and the central bar across the middle each side of the star circle.
 
Well I got a new locking wheel nut socket and bleed the system again, a few little air pockets came out which is good news, went out afterwards and tested it and seemed a bit better, bit in my mind it's still not perfect, I might be over examining it now though :crazy: I did some very fast stops using the abs a couple of times and it braked very well.

If the master brake cylinder is going or gone would it be more noticeable? What are the consequences of it going could it just suddenley go and I'll be left with no brakes?

Cheers
 
If the master brake cylinder is going or gone would it be more noticeable? What are the consequences of it going could it just suddenley go and I'll be left with no brakes?

Cheers

No.
If the master cylinder seals are going then the pedal will continue to travel to the floor gradually.

Try applying the brakes hard and see if the pedal continues to sink to the floor.

I doubt you have any problem other than the pads bedding in.
 
i would tend to agree with dieselman here, seems that the issue is getting over complicated, the pedal is going to feel spongy on a brand new set of pads...
 
Well I got a new locking wheel nut socket and bleed the system again, a few little air pockets came out which is good news, went out afterwards and tested it and seemed a bit better, bit in my mind it's still not perfect, I might be over examining it now though :crazy: I did some very fast stops using the abs a couple of times and it braked very well.

If the master brake cylinder is going or gone would it be more noticeable? What are the consequences of it going could it just suddenley go and I'll be left with no brakes?

Cheers

If the pressure can be pumped up and holds under pressure, that is a symptom of the master cylinder
 
Malcolm

I doubt that the SL has got a few more years left with it's current shape.

There were some spy pictures recently on some forum or other showing the highly revised SL on test with barely any comouflage, and looked to be ready to launch next year.

It was following the lines of recent Merc thinking in that it had a very upright front to give it more presence.

It was not unlike the front of the 107 featuring the star grill and the central bar across the middle each side of the star circle.

There have been pictures floating around for years, I think all one can say is that all SLs have had a 10-12 year run, the current one is still selling well

to launch one in 7 years would make history
 
We have just changed the front pads on a C180, went on a run this morning and at first they felt spongy and travelled.... Now after a bit of driving this afternoon miles they have settled and feel normal..
 
Done 2-3 hard stops, I'll continue to use it this week and monitor, seems fine although I think if I press the pedal it will continue to go to the floor which is worrying, will check again tomorrow.

Most importantly what are the consequences of the MBC failing and would it leave me with no brakes?
 
Done 2-3 hard stops, I'll continue to use it this week and monitor, seems fine although I think if I press the pedal it will continue to go to the floor which is worrying, will check again tomorrow.

Most importantly what are the consequences of the MBC failing and would it leave me with no brakes?

When it sinks try and pump it up with a few presses in succession, I had to do that when it went down on my V70R shortly after changing the pads, it got worse and was harder to pump up so I changed it in the end.
 
Ok, but please tell me what are the consequences of the MBC failing and would it leave me with no brakes?
 

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