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SL/R129: Brake Booster seal repair kit ?

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Old 11-12-2017, 07:11 PM
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1997 SL500 R129
Brake Booster seal repair kit ?
Has anyone tried this booster plunger seal repair kit?

URO Parts Repair Kit 001 430 0708 for ATE Brake Booster Plunger Seal 03.7718-5028.1

R/R video from youtube:


I have hissing under the dash when I press the brake and a hard brake pedal after its down about half way.
My '97 R129 SL500 has an ATE booster and master cylinder so I was thinking of giving this a try.

Any input??
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Old 11-12-2017, 07:42 PM
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Old 01-31-2021, 07:11 PM
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G55 AMG 2002
Originally Posted by brucemid

Hi Bruce, did You fix that problem? When I press brake pedal ive got hissing sound, only when Pressing... like pumping float toys...
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Old 01-31-2021, 08:30 PM
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Originally Posted by Kuba Kalinowski
Hi Bruce, did You fix that problem? When I press brake pedal ive got hissing sound, only when Pressing... like pumping float toys...
I did not pursue this repair kit. I ended up replacing the booster -- which solved the issue.

Best of luck!
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