UKPassats

I was cleaning the car this morning and noticed that there is a huge amount of dirt between the glass and door seal. I gave it a good soaking in silicon cleaner and rubbed it with a cloth corner and got a lot out. What came looks like soil has stated to form!

I didn’t want to put anything hard in there to scrape in case I damaged the seal whilst getting at the deeper sediment.

Does anyone have any advice or tips, tools for doing this job?

Thanks