I've bought three of these from GAS, used one in my car, used two in other people's cars - never an issue.
I know eBay is a great place to get stuff, I use it all the time. But not for electrical parts for the car.
There is no guarantee this is the problem, but the car is known for being fussy about the electrical sensors you put in it.
https://www.germanautosupply.com/mer...ensor-387.html