[RoamPT]

pawn Код:

public OnPlayerCommandText(playerid, cmdtext[])
{
  if (!strcmp("/repair", cmdtext))
  {
    if(!IsPlayerInAnyVehicle(playerid)) return SendClientMessage(playerid, 0xFFFFFFFF, "You are not in a vehicle!");
    RepairVehicle(GetPlayerVehicleID(playerid));
    SendClientMessage(playerid, 0xFFFFFFFF, "Your vehicle has been successfully repaired!");
    return 1;
  }
}

Fonte: https://sampwiki.blast.hk/wiki/RepairVehicle

Nгo te esqueзas de usares os novos includes do pawno para a versгo 0.3.