My first reaction is to fill the holes with General Electric Silicone. I would use the black color and use as little as possible, but enough to do the job. Before following my advice, I would see if other members have better ideas.
Chances are ML factory people will advise you to replace it. If that is your last resort, experimenting with my idea can't hurt.
Chances are ML factory people will advise you to replace it. If that is your last resort, experimenting with my idea can't hurt.