Hi Zeitgeist, thanks for the response.
When you changed to the 500E m/c was it a clean swap or did you have to "make" it fit? lol
Also, if I change the booster will I have to get new lines or can I use my old ones?
Swapping Master Cylinders - Is It Possible/Necessary?
Hi all,
I recently have been experiencing brake firmness problems and I need to ask a few questions regarding this.
When I brake, sometimes the brake feels perfect, like new, and it has only been 10 months since I replaced the pads, rotors, sensors etc. But sometimes three stops later, I feel the pedal loosen up, sometimes to the point where I worry it is not gonna stop. Then randomly it will firm up, all in the same trip. I can't tell when it is gonna cooperate.
So after reading a few posts it seems as though the master cylinder might be the culprit or the vacuum hose. All in all, if it is the cylinder, I was wondering if anyone had put in a stronger m/c? If it needs changing I might as well go "all out" :thumbsup:
I am also looking to get bigger brakes for my 400E and was looking at the 500E 320mm and possibly the 334mm setup. But if I do go bigger, do I really need to put in a bigger m/c? Will the one for mine suffice? I would like to know so when the time comes, I can do it right the first time! hehe
I was looking online and it seems that some of the 400E's have the same or close to the same m/c as the 500E and 500SL. I have a chart that shows all the m/c part numbers and which cars they were applied to, but I am still a little confused.
So if I do go with the 320mm or even the 334mm "big brakes" will I need to get different lines/booster/pins/etc. or is it just direct bolt on?
I have found almost no posts on this subject so any feedback will be greatly appreciated. Thanks!
I recently have been experiencing brake firmness problems and I need to ask a few questions regarding this.
When I brake, sometimes the brake feels perfect, like new, and it has only been 10 months since I replaced the pads, rotors, sensors etc. But sometimes three stops later, I feel the pedal loosen up, sometimes to the point where I worry it is not gonna stop. Then randomly it will firm up, all in the same trip. I can't tell when it is gonna cooperate.
So after reading a few posts it seems as though the master cylinder might be the culprit or the vacuum hose. All in all, if it is the cylinder, I was wondering if anyone had put in a stronger m/c? If it needs changing I might as well go "all out" :thumbsup:
I am also looking to get bigger brakes for my 400E and was looking at the 500E 320mm and possibly the 334mm setup. But if I do go bigger, do I really need to put in a bigger m/c? Will the one for mine suffice? I would like to know so when the time comes, I can do it right the first time! hehe
I was looking online and it seems that some of the 400E's have the same or close to the same m/c as the 500E and 500SL. I have a chart that shows all the m/c part numbers and which cars they were applied to, but I am still a little confused.
So if I do go with the 320mm or even the 334mm "big brakes" will I need to get different lines/booster/pins/etc. or is it just direct bolt on?
I have found almost no posts on this subject so any feedback will be greatly appreciated. Thanks!
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When you changed to the 500E m/c was it a clean swap or did you have to "make" it fit? lol
Also, if I change the booster will I have to get new lines or can I use my old ones?
Well here what I really want to know:
Can I put the 1999 SL500/600 master cylinder on my 400E/500E brake booster? Or would I need to get a new booster?
If I can, would I really need to?
99-02 SL500/600 M/C - 005 430 89 01 ~$345
99-02 SL500/600 Booster - 005 430 09 30 ~$554
93 400E/500E M/C - 004 430 75 01 ~$161
93 400E/500E Booster - 004 430 65 30 ~$305
Prices from parts.com
Can I put the 1999 SL500/600 master cylinder on my 400E/500E brake booster? Or would I need to get a new booster?
If I can, would I really need to?
99-02 SL500/600 M/C - 005 430 89 01 ~$345
99-02 SL500/600 Booster - 005 430 09 30 ~$554
93 400E/500E M/C - 004 430 75 01 ~$161
93 400E/500E Booster - 004 430 65 30 ~$305
Prices from parts.com
Hi joef,I did the same 600sl set up and used the booster and m/c from a w140 - s320
was this a direct bolt on swap or did you need to play around with it to make it fit?
I saw your old thread with the SA brakes on the CE and that is exactly what I am trying to do to my 400E. I'm being told that my 400E master cylinder is good enough to handle the brakes. I currently have the same one that is used in the 500E. What do you think from driving with your setup?
1 - 4 of 8 Posts
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