L322 front diff fail

mine had done 118000 before the front diff coupling broke and they fixed it free of charge aswell but it was on the dealers waiting list for parts and at the time the dealer said if it hasn't broke by now it won't break (famous last words),on the dealers diagnostics front the usual £60-80 at stratstones I bought an RSW all comms so far used it to reset the air suspension once so its half paid for already .