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Volkswagen Jetta, Golf, GTI: 1999-2005, R32: 2004 (A4) What's inside the brake booster?


Permlink Replies: 3 - Pages: 1
Last Post: Sep 1, 2014 2:53 AM Last Post By: FKH161
Grasshopper

Posts: 10
Registered: 10/29/05
What's inside the brake booster?
Posted: Aug 8, 2014 6:50 PM
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Hello,
I have been trying to track down a vacuum leak which is causing a turbo overboost condition (DTC P0101). Have replaced quite a few items, including MAF sensor, N18/N75 switches, and most recently ALL vacuum hoses. Now I want to replace the brake booster hose that comes from the vacuum pump and has a check valve between them.
My question is, what is inside the brake booster? Can I just pull the plasic coupler with the hose out of the booster and stick the new one in? The replacement hose has the coupler in it, but it looks like it should attach to a hose, which would then fall into the booster if I pull it out.
Thanks in advance for your advice.

PS - Vehicle is a 2002 Golf TDI with ALH engine.
FKH161

Posts: 7,626
Registered: 12/29/05
Re: What's inside the brake booster?
Posted: Aug 29, 2014 1:02 PM   in response to: Grasshopper in response to: Grasshopper
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A bit late for a reply... I was on holiday.

In the following video you will see a booster hose. It should just pull out & push on... there should be nothing that is attached to the plastic hose / tube that could "fall in".

https://www.youtube.com/watch?v=LUEVdzSl9nA
Grasshopper

Posts: 10
Registered: 10/29/05
Re: What's inside the brake booster?
Posted: Sep 1, 2014 1:17 AM   in response to: FKH161 in response to: FKH161
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Thank you FKH161. I took a chance and pulled the hose out. It was simply plugged into a rubber grommet that was set in the boosters hole. As you said, nothing fell into the booster, and I just jammed the new hose back into it.

Your reference to your "holiday" instead of what Americans call "vacation" indicates you were away from work for an extended amount of time. I hope it was enjoyable for all.
FKH161

Posts: 7,626
Registered: 12/29/05
Re: What's inside the brake booster?
Posted: Sep 1, 2014 2:53 AM   in response to: Grasshopper in response to: Grasshopper
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I'm in Canada (originally from Germany)... Holiday & Vacation are the same to me. A holiday is usually shorter than a vacation and some vacations feel like they are holidays because they are too short. :-)

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