This is what I thought, I couldn't see VX changing them across the range,I have only ever come across 1 size of master cylinder on all the Corsa C, Combo's and Tigra B's I've worked on and they all shared the same size servo as well.
I think I need both, the seal on the servo is perishing and the plastic bit from the hose is chipped so I think it's a bit of bothYou can get the rubber grommet seal on its own but the pipe is complete. Either Vauxhall main dealer or second hand parts.
Are the brake boosters all the same?Master cylinders are different depending on brake config drums discs, abs or not, esp or not, auto gearbox or not. Same for servo. Parts catalogue is full of various numbers. Been there done that with the upgrade from non abs to esp.
Servos are different for manual and auto, abs/non abs etc....
The part number for mine isn't even on thereIt's strange how they all have the same part number??
May be it's just UK that are all the same servo's? There is a model number break for later Corsa's. Never seen any difference and we have cars from 51 plate to 2006. z12xe manual to z14xe auto and z18xe, all have the same set up with 2 different ABS units.