The rebuild kit for the brake booster came in today so that went back together... all the parts: the kit with 3 o rings, pump cover, pump innards, and pump body.
Vehicle:
Volkswagen Passat B6
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Its NOT the Brake booster vac pump lol I replaced that 3 months ago with OEM VW parts from the dealer $506 repair.
Pros: fixed brake booster
Cons: expensive repair
Vehicle:
Volkswagen Golf
Just to update - my 2014 GLI is currently in the shop. The hissing is due to cold weather causing a seal to \"shrink\". Boost is always regained after startup, so it's not a \"safety\" issue. With that said, they've ordered the report to replace the brake boost.
Pros: boost regained after startup
Cons: hissing due to cold
Vehicle:
Volkswagen
Just for follow up.. I brought the car to the dealership this morning. They were able to replicate the issue and it is the brake booster.
Pros: issue replicated
Vehicle:
Volkswagen Jetta
Mileage: 400 km
That brake pedal noise is a vacuum leak. Either the line going to the brake booster or the brake booster itself. They are known to cause leaks. Get it replaced ASAP! I got mine replaced. Same issue. Hissing sound that goes away when slightly stepping on the brake.
Pros: issue fixed, noise gone
Cons: hissing sound
Vehicle:
Volkswagen
Mileage: 33000 km
I found a vac leak at the brake booster line. I fixed it, and now I am getting no codes at all. it says "EVAP OK" The reason I missed the leak at the brake booster line is because it can't be detected with a pressure test because of the check valve. I've driven 35 miles with no codes, so an entire year with a lean code is finally over, I hope!
Pros: no codes, EVAP OK
Vehicle:
Volkswagen Jetta
My car's water drains clogged and the brake booster was saturated and needed to be replaced. Brookline Volkswagen Audi charged me $848.33 to clear the drains and replace the brake booster.
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What we know about OEM Volkswagen brake booster
The brand is registered in Germany. Official website: https://www.volkswagen.de/.
In March 2026, PartReview does not yet have a formed opinion of OEM Volkswagen brake booster. You can help by adding a review for OEM Volkswagen brake booster.
Currently there are 7 reviews and 22 votes. Average rating — 4.5 out of 5. Vote balance: 20 up, 2 down.
Users also evaluated the qualities of OEM Volkswagen brake booster:
- Pedal effort - less force is needed for strong braking - rated positively. 5 points out of 5.
- Hiss sound - constant hiss at the pedal hints at a vacuum leak - rated positively. 3.8 points out of 5.
- Idle change - engine stumbles when pressing the brake if the booster leaks - no rating yet
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