Hello,

When you look at the EPC of a W124 (as most of the other MB's I guess) you'll find all kinds of part numbers : 110, 115, 116, 126,
123, even 124 and yes also 007. That last number don't mean your W124 092 has connections to James Bond ( who knows! )!
In fact "997" and "81" makes it indeed a rubber grommet.
"29" makes me believe you should find it under the hood but...
where ?
Good luck,

Danny