Mercedes CLC W203 SRS light on. Error 9007. Fault finding and repair.

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Hi

This car came to me with the SRS light on, and after a quick scan, showed error 9007.
A quite simple issue in the end, but thought you guys would like to see the repair...

Materials Used:

NOTE THAT THE LINKS BELOW ARE FOR A QUICK REFERENCE ONLY!
FEEL FREE TO DO YOUR OWN RESEARCH PRIOR TO HIT THE "BUY" BUTTON.

Flux used: NC-559-ASM-UV
https://www.amazon.co.uk/gp/product/B08B5B72FR/ref=as_li_tl?ie=UTF8&tag=lmautorepairs-21&camp=1634&creative=6738&linkCode=as2&creativeASIN=B08B5B72FR&linkId=d641d94efbe4010790dbf682cf996178

To clean: Isopropyl Alcohol
https://www.amazon.co.uk/gp/product/B082XQ4W4R/ref=as_li_tl?ie=UTF8&tag=lmautorepairs-21&camp=1634&creative=6738&linkCode=as2&creativeASIN=B082XQ4W4R&linkId=766e529c62f4a09fc8fefa904059f74b

Fiber Glass Cleaning Pen:
https://www.amazon.co.uk/gp/product/B002Z8IX36/ref=as_li_tl?ie=UTF8&tag=lmautorepairs-21&camp=1634&creative=6738&linkCode=as2&creativeASIN=B002Z8IX36&linkId=d8a970af6f256b8b36e233e6950fe7d4

Soldering Iron: Temperature controlled soldering station.
https://www.amazon.co.uk/gp/product/B00T0M9XWK/ref=as_li_tl?ie=UTF8&tag=lmautorepairs-21&camp=1634&creative=6738&linkCode=as2&creativeASIN=B00T0M9XWK&linkId=4ca9307086d5b8eee5159aeddb28ec9f

Hot Air Gun Station:
https://www.amazon.co.uk/gp/product/B08FTFFJ9Q/ref=as_li_tl?ie=UTF8&tag=lmautorepairs-21&camp=1634&creative=6738&linkCode=as2&creativeASIN=B08FTFFJ9Q&linkId=bd296208099a06f57d573aed415e01f8

Desoldering Vaccum Station:
https://www.amazon.co.uk/gp/product/B079ZC3WBC/ref=as_li_tl?ie=UTF8&tag=lmautorepairs-21&camp=1634&creative=6738&linkCode=as2&creativeASIN=B079ZC3WBC&linkId=0d4239fa85d8462963dafb1bd2db9fd8

Hope you enjoy the video.
Any questions or comments put them below.
Like always, thank you for watching!