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[Trix4U2play0]

new here with vacuum problems because its so hard to find any info on YT because i have a conversion kit to run on used veggie oil. Brake master cylinder / clutch cylinder / clutch slave cylinder confussion HELP WHICH ONE IS WHICH !!!!

 

[markjay]

Welcome.

Is this a W123?

If so, then does this help?

S

Thread 'W123 occasional soft brakes'

Oct 9, 2019

1981 240TD auto with 75K miles.
The master cylinder is new-ish and the front calipers and pads are brand new and the rears have been overhauled.
Engine off, press the pedal and it is hard. Start and it descends slightly.
Sometimes when driving, the pedal movement will go from hard to very soft with a lot of travel. Pumping restores it a bit. If I press the pedal hard at a standstill and then move off and brake, it brakes well. Then once it has braked once the pedal will be hard but the braking very poor.
With this information, where would you start to diagnose things?
It doesn't sound...

• sceh
• Replies: 24
• Forum: Wheels, Tyres, Brakes & Suspension

Mercedes-Benz W123 Brake Master Cylinder Replacement | W123 (1977-1985) | Pelican Parts DIY Maintenance Article

Replace your own brake master cylinder and save some money

www.pelicanparts.com

 

[Trix4U2play0]

Welcome.

Is this a W123?

If so, then does this help?

S

Thread 'W123 occasional soft brakes'

Oct 9, 2019

1981 240TD auto with 75K miles.
The master cylinder is new-ish and the front calipers and pads are brand new and the rears have been overhauled.
Engine off, press the pedal and it is hard. Start and it descends slightly.
Sometimes when driving, the pedal movement will go from hard to very soft with a lot of travel. Pumping restores it a bit. If I press the pedal hard at a standstill and then move off and brake, it brakes well. Then once it has braked once the pedal will be hard but the braking very poor.
With this information, where would you start to diagnose things?
It doesn't sound...

• sceh
• Replies: 24
• Forum: Wheels, Tyres, Brakes & Suspension

Mercedes-Benz W123 Brake Master Cylinder Replacement | W123 (1977-1985) | Pelican Parts DIY Maintenance Article

Replace your own brake master cylinder and save some money

www.pelicanparts.com

OH IT HELPS SO MUCH THANK YOU VERY MUCH!!!

 

[SmartAmg]

 

[DesireeE]

new here with vacuum problems because its so hard to find any info on YT because i have a conversion kit to run on used veggie oil. Brake master cylinder / clutch cylinder / clutch slave cylinder confussion HELP WHICH ONE IS WHICH !!!!

Hello there Trix and welcome to the forum, great to have you join us.

So glad you received some cracking advice already, as to be honest most of your post went right

... then again, I'm not the brightest star in the sky