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

Many popular ATE vacuum brake boosters for Mercedes Benz, Volvo, and other marques experience leakage through plunger seal 03.7718-5028.1, which is characterized by a loud hissing noise and reduction of braking power assist. This seal is known to be used on the following ATE brake boosters:
Mercedes 001 430 0708
Mercedes 005 430 8530
Mercedes 005 430 5530 -28
Volvo 30793673
Volvo 31273684 *
Volvo 8649491 *
(URO is also considering a kit to replace ATE seal 03.7718-5018.1, which is slightly different and is found in other vehicles, including SAAB and Volvo.)
Reduced power brake assistance can increase stopping distances, while vacuum leakage can affect the fuel injection system and other components that rely on specific vacuum levels. The only repair option from the dealer is to purchase a complete brake booster assembly, which is exorbitantly expensive.
Fortunately ÜRO Parts has developed a simple solution for failure of ATE seal 03.7718-5028.1. ÜRO Repair Kit part number 001 430 0708S provides a new replacement EPDM brake booster plunger seal, a seal driver tool, and a tube of silicone grease, which repairs the failure much more economically than replacing the complete booster assembly.
SEAL REPAIR KIT FITS THE FOLLOWING VEHICLES (and possibly more): www.uroparts.com/uro/inventory...
*** UPDATES: **
6/11/19: Volvo S60 enthusiast and DIY expert "Peppermint" posted a detailed video showing how to replace this seal with the booster still in the car: • ATE Brake Booster Serv...
5/7/18: DIY pro "Arthur" (see his comments below) was able to install the new seal without removing the booster from his vehicle, thanks to his idea to cut the seal driver tube in half. ÜRO hasn't tried this and it sounds challenging, but it worked for Arthur.
3/5/18: When installing the new seal, some technicians placed the booster and seal tool in a press instead of hammering the new seal into place with a sledge hammer. They used the press to apply force to the plastic tool and drive in part of the seal with the pointed end of the tool, then relax the pressure, rotate the tool slightly, and then press again. Continue to press and rotate until the seal is fully installed. Our engineers found that the sledgehammer worked fine, but do let us know if the alternate press method works better for you.
2/20/18: Some users have reported that the replacement seal can also be installed by placing the booster in a press and depressing the plunger about an inch, which allows the white plunger tube to be moved side-to-side by hand. This is said to create enough space for the seal to be pushed into place by hand.
11/16/17: The seal driver tube included in this kit is being lengthened to 9-inches to fit certain Volvo models. If the driver tool you received isn't long enough to clear the plunger fork on your booster, please contact us for the lengthened tube.

[@arthurglazier5954]

I was able to install this in my 2003 ml 350 without removing the brake booster. I took me about 1.5 hrs. I did have to cut the plastic tube in half, but WAAAY easier them removing the booster . Works great, the brake pedal is much firmer.

[@mindaugaslegerpusis9893]

Fits MB C class w204 c220 cdi 2008 perfectly. I replaced without removing brake booster. Removed the brake pedal assembly to gain more space, then put those bolts back to hold the booster steady. The old seal came out easilly without a special tool - just by hands. Shortened the tube end to be just a little longer than the booster fork end. Took a mirror for better view around. Used my fingers to put seal under the booster edge. Hammering was unsucsessful, so I took a lever, found a good edge somewhere under the steering wheel, then pressed the tube with lever carefully (spinning the tube and pressing all around) and it got to the place without a problem!

[@rbschumbos]

Finally a definitive solution to a problem that plague ATE boosters for decades! The Mercedes M-Class vehicles was one of the most affected by this defect and until now replacing the whole booster has been the only solution available, besides adaptations not guaranteed to last long. Now we can just replace this darn seal and fix this issue in a efficient and cost effective way. Great!

[@orgyaps]

Please make the seal for other ATE models. My Jag XJ plays whistle 🥲

[@LuisGonzalez-lg3xy]

Would you provide me a link to a video on how to remove and put back the break booster. hopefully on a 2002 Volvo s80. Or some instructions on how to do the whole process? thanks

[@connormorse1010]

This isn’t working on my 2005 Volvo S60R. I have the booster out of the car and I have the seal seated, but it just isn’t going any farther than the first ridge. I followed all the directions in the video, but the first ridge on the seal ended up ripping off and the top of the seal started caving in. Help please! My car currently is underivable because of this.

[@danb.3397]

WELL DONE, I wish most other Tubers would do this good.

[@dimitardondev3293]

Hello, thanks for the great videos and guidance for DIY repairs. Please suggest dealer in UK where I can purchase Brake Booster Plunger Seal for Volvo S80 2001 part No 0014300708S. I found it in ebay but only with delivery from US. Cheers.

[@MercedesBenzW124]

That is brilliant! never expected this. Can you confirm this will fit a Brake booster for Mercedes ATE 3.6762-0402.4 If so I am off to buy the kit.

[@lukepappas9521]

be careful when you get the janky pvc tube if you buy this product, mine was cut poorly at a bad angle on both sides and could not properly use the tube, vary disappointed in myself for trying to use the tube they had giving me, now I need another seal.

[@Peppermint1]

Very important what he's doing at

[@gregor_b1]

I was wondering If I could change this seal withou removing vacuum booster ('servo')

[@kubaSWAT]

Hi, When pressing the brakes I can hear hissing sound like on the video, is it the seal on the servo? It’s hisssing only while pressing in

[@Julinx98]

I did this on my mercedes ML500 2003 and installed it while the booster was still in the car. It works great however, the bas/esp light came on after the install and i can’t get it out of Park. Any suggestions?

[@evanleebodies]

Do all ATE brake boosters employ the same size of plunger seal or are there different sized plunger seals for different ATE brake boosters?

[@Uroparts]

Available for purchase here:

[@modelfreak125]

Do you have a seal for the GM brake boosters gm part number 5465302 looks visually the same

[@pinepienaar3899]

Where can i get a complete booster overall kit for a Volvo S40 2.4D 2008 and engine mountings?

[@user-bn6kr5gb8d]

👏🏻👏🏻👏🏻👏🏻

[@nemocap2958]

Excellent job!Finally!Will this fit Volvo S40 2.0D 2007?