Vacuum leak

[Black Pearl]

Evening all,

I have just bought myself a 2010 S4 and I love it!!!! I have a slight issue already though. I have a hissing noise coming from the drivers footwell. When I press on the brake the noise goes away. I have tried looking for a connection or a hose but I have had no luck. Does anyone have any idea what this could be or have a diagram of that area? I have a left hand drive car, not sure if this makes a difference.

Thanks

Ash

Here is a picture of the beast with a bow on it.

 

[rum4mo]

Hello and welcome to this forum!

Definitely that bow is causing problems, these cars do not like being dressed up!

In other words I have not got an answer for you, my 2011 S4 still works okay - sorry!

 

[Black Pearl]

Thank you!!

I wanted to keep it but the dealership said no. These cars are amazing!!

 

[Chilly]

Great car, good choice!

Sounds like a brake booster vacuum leak, over time as it gets worse you will need to put more effort into the brakes to get them to perform.

Could be a loose vac line or worst case a leak on the diaphragm.

Had it on our S3, glad I got a garage to repair as it needed rectifying from the engine bay side which was a touch on the tight side! The S4 I would imagine will be the same!

Great car and hopefully you will get it back soon!

 

[Black Pearl]

Thanks,

I'll check the lines out again but I'm thinking it is the brake booster too.

Yeah there isn't much room under there i think it might be a tight squeeze.

 

[EXSpartan36]

I had the same on my A4 replaced the Brake servo/Booster and its been alright since. I done the job on my drive its not a bad job. You will need the special tool to detach the brake pedal from the servo. I had to order the tool from the US so you shouldn't have any problems getting hold of it.

 

[Black Pearl]

Ok perfect, do you have the part number for the tool at all?

 

[EXSpartan36]

What model year is the car? I'll double check the number

 

[EXSpartan36]

You will need T40136 and T40168

https://www.handsontools.com/SES-T40136-VWAudi-Brake-Servo-Release-Tool_p_168257.html

https://www.handsontools.com/SES-T40168A-VWAudi-Brake-Light-Switch-Release-Tool_p_168259.html

 

[Black Pearl]

Thank you

 

[matthew999]

Surely the car has some warrenty from dealer? Also you have plenty of comsuner rights in first 6 months to get em to fix it for free.

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[Black Pearl]

No they didn't have any warranty. I could of paid $3500 for extended warranty but stuff that!! I will try and get it fixed for free if not at least discounted.

 

[matthew999]

https://www.which.co.uk/consumer-ri...car-i-bought-has-a-problem-what-are-my-rights

Worth a read...

Im in process of trying to get purchasing dealer on mine to cover cost of repair on an oil leak discovered after one month of ownership, Ill keep you posted.

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[Black Pearl]

Yes please do, thank you for the link.