Sounds like the brake servo. Easy to test in a local garage, particularly one that does mot testing as it’s checked as part of the test. Do it as soon as you can, if the servo fails the brake pedal will be very hard to depress and the vehicle will be unsafe to drive.Hi, it’s every time I depress the brake and not associated with going over bumps. As soon as my foot comes offf the brake ‘ no hissing’
I’ve checked the brake fluid reservoir and seems fine, no visible leaks either.
I was thinking of getting Kwik Fit ( who offer a free brake check ) to initially look at it as they are just a couple of miles away.Sounds like the brake servo. Easy to test in a local garage, particularly one that does mot testing as it’s checked as part of the test. Do it as soon as you can, if the servo fails the brake pedal will be very hard to depress and the vehicle will be unsafe to drive.
Does the hissing occur when you are stationary with the engine running and foot on brake?I was thinking of getting Kwik Fit ( who offer a free brake check ) to initially look at it as they are just a couple of miles away.
My alternative VW dealer is 50 miles each way.
Any thoughts, my concern is the ‘risk
It's a difficult one not knowing what the actual cause is. Maybe have a chat with your nearest garage and explain your concerns, they may come out on road test if your close enough to have a look.I was thinking of getting Kwik Fit ( who offer a free brake check ) to initially look at it as they are just a couple of miles away.
My alternative VW dealer is 50 miles each way.
Any thoughts, my concern is the ‘risk factor’ when driving.
£132 to stick your head in the footwell and have a listen !!!!!I’ve got VW ‘All In Plan’ covering Road Asst and Warranty.
VW dealership in Edinburgh can see me next week but initial charge to me £132 for diagnostic, thereafter ‘may or indeed may not ‘ be covered by warranty !
All in plan has VW assist included, ring them and tell them it’s a safety issue with the brakes , they will come out and either confirm no issue , fix it or transport it to the dealer who has to make your repair a high priority (you get a courtesy vehicle included whilst your van is being repaired- no investigation fee if VW assist have already looked at it )I’ve got VW ‘All In Plan’ covering Road Asst and Warranty.
VW dealership in Edinburgh can see me next week but initial charge to me £132 for diagnostic, thereafter ‘may or indeed may not ‘ be covered by warranty !
Had a similar problem with our Passat, turned out to be a sticky piston in the brake calliper which wore the rotor. I'd have it checked asap.Any ideas ?
When braking ( and windows partly open ) I’m hearing a hissing noise, sounds like coming from front near side, stops when foot off brake.
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