Broken LMM Connector Lock: Fix & Repair

Hello,

Unfortunately, the workshop probably damaged the locking mechanism of the MAF sensor connector during the last service.
It's been 4 months already, and the store will probably never see me again anyway, so I'm just going to fix it myself.

It is a G IV ASZ model from July 2002.

Has anyone ever repaired this before?
Im Teilekatalog gibt es unter Kabelbäume - Einzelteile zwei Teile zu diesem Stecker. Einmal der Steckereinsatz rot und dann ein Gehäuse dazu. Was brauche ich genau ? Boaths?

And then there are two index numbers on the housing without any specific model information (G and H). What is the correct one, or what are the differences? Do both fit the LMM?

Sure, no problem! Here's the translation:

"Thank you in advance!"