hi got van on road today problem is seal gone on brake servo,had mechanic out today took plastic off around bottom of windscreen to get to servo, problem is you can only get to top half brake servo.sealed best we can as you can not get to very bottom of servo,mechanic not prepared to take whole servo off as it would be to expensive,any suggestion on how to seal bottom half as it is so difficult to get down there,time will tell with heavy rain comes if problem is fixed