hi guys....just had the alternator belt snap on me today....find out the other 2 belts have snapped as well...one for air con..one for water pump( i think)...had the mechanic come round to take a look and he says the alternator has seized causing all three to snap...is this a common fault???also he says to change it all the front has to be removed!!!! is this true....one last thing....will an alternator from a passat tdi 110 fit the a4...he says they are same....been tryin to find the part compatibilty on net but no luck....thanks for any help/advice.....