There are 4 ears equally spaced around the compressor. I think you use 2 of the ears to install it. If 1 ear breaks, unbolt the compressor, rotate it 1/4 turn and reinstall using a fresh ear and the broken one is in a position that is not used.
In the meantime, maybe you already know:QuoteThere are 4 ears equally spaced around the compressor. I think you use 2 of the ears to install it. If 1 ear breaks, unbolt the compressor, rotate it 1/4 turn and reinstall using a fresh ear and the broken one is in a position that is not used.http://vwdiesel.net/forum/index.php/topic,20270.msg154665.html#msg154665