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Registered
1991 W124.128
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136 Posts
Discussion Starter #1
Hi,
simple tasks can sometimes become very frustrating.
Don't like using the brake pedal to bleed as in the master brake cylinder the piston is pushed into an area it normally does not travel into. If you had good pedal pressure before you started the repair doubt the master cylinder is leaking. I am pressure bleeding my brakes and have had good success with it. Also can do it without the help of another person. There are commercial units available or you build one yourself out of a small garden sprayer. I am using a very simply system made by Gunson by the name of Eazy Bleed. Check with www.mossmotors.com in Goleta, CA. Have also another unit which is used with a bigger air compressor but in my case does not work as well. Use Google to find details about the selfmade pressure bleeder. hope, this helps
 

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1993 190e-2.3
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765 Posts
I just crack open the bleeders with a pan underneath and watch the fluid go down. The rear circuit in the reservoir is tricky because its inside the main reservoir and needs to be kept full or you will get air in the system. It's weird because it looks like the reservoir is full, but the rear circuit is empty. I bleed my brakes when I take my winter tires off every spring.
 
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