I have no experience writing interesting articles or stories, but the long story short is. I`m a Ukrainian who owns a US car after the incidents. I like Audi. My first car was a Q5 2015 MY. Logically (almost), the next choice happened to be an SQ5, preferably 20+ MY. After a few test drives, researching, and time, I was waiting for the new (used) car - Audi SQ5 Prestige 22MY.

I live in a flat room without parking, but I own an underground one in the neighbourhood building. It has 2 levels of security access: barrier and garage door with one remote. Also, my new car had a Homelink option, the purpose of which was to simplify life. Unfortunately, the remote system of my parking was not compatible with HomeLink. The investigation has already started here.

The first idea was just to replace the Homelink module from the US to the EU one. And I started from here. By the VIN of my car, I found that the original module installed in my car is 4M0907410A. As VAG has two part numbers, the base one and end the end one. The base number was 4M0907410. It can mean different things like different options, functionality, firmware, and even different base characteristics. And it was. On the previous platform, called "B8", the garage door opener had two option codes: VC1 and VC2. VC2 is for 315Mhz transponders, and the VC1 is for 433 one. And both my cars had the VC2 option code, of course. It confirmed the necessity of the module replacement, except for one thing.

The part numbers for the B8 platform are on the screen. As you can see, it has a separate part number for VC1 and VC2.

BUT the B9 platform has a different situation. It does not have separate part numbers depending on the PR code. And it was weird.

Another weird thing was the module supplier part number: NZLADHL5C. And by quick googling, I found the FCC report: https://fcc.report/FCC-ID/NZLADHL5C.

The frequency range covers both ranges and even more. So, is the replacement needed? Or is the configuration enough?