Interchangeable Brake Master cylinders?

[Martin191]

Hi does anyone know what other brake master cylinders I can fit to a 2002 Octavia VRS. Mine is making a hissing noise when pressing the brake pedal after removal. 

 

Thanks

[KenONeill]

@Martin191 - Do you have brake fluid loss? If not, I'd suspect that the issue is more likely with the vacuum servo, or the associated pipework.

[Martin191]

When removing the master cylinder as it was taken out is sounded like it was drawing air in, then once refitted it then started hissing when pushing the brake pedal, while the engine was off. What does that make you think? 

[Martin191]

Also to add to this - both the bleed nipples have sheared off the master cylinder.

[KenONeill]

39 minutes ago, Martin191 said:

Also to add to this - both the bleed nipples have sheared off the master cylinder.

This says you need a new master cylinder anyway. Hissing noises still sound more like pneumatics than hydraulics to me though.

[Martin191]

Thought so, any idea if they're interchangeable then? I've seen a load of mk4 golf / a few audi tt master cylinders, and a few look to have an extra pipe or two

 

[KenONeill]

@Martin191 - I don't know enough about individual models of master cylinder to give you a full answer, but you do definitely need to maintain the cylinder bore.

[Martin191]

Thanks Ken, I got one of Partsgateway in the end, not sure if its interchangeable, but I got it for 28 quid delivered.