[RajatPawar]

pawn Код:

public OnPlayerDisconnect(playerid, reason)
{
      if( IsPlayerInAnyVehicle( playerid ))
      {
            if( ! GetPlayerVehicleSeat( playerid ))
            {
                    DestroyVehicle( GetPlayerVehicleID( playerid )); 
 .....

Make sure you read this, too ! (it CAN return 128 for some weird reason)

The same code goes for both the callbacks..