After a Transit tried to mate with my car, I'm looking for (amongst many other things) a knee airbag.  As you can see from the list on the link, there are many available but they all have a four digit code, such as LD57, AY11, etc.  Am I right to assume these are codes to co-ordinate the plastic lid colour?


https://www.ebay.co.uk/sch/Airbags-Sensors-Accessories/174073/i.html?mvsub=1&_mcatda=true&selcontext=productType%3ACAR_AND_TRUCK&selfil=2%2C3%2C1%2C9%2C8&selvel=Ford%7EMondeo%2520Turnier%7E2008%7EMK%2520IV%2520%255B2007-2014%255D%2520Estate%7E1.8%2520TDCi%7EMK%2520IV&MMake=Ford&MModel=Mondeo%20Turnier&MYear=2008&vToken1=MK%20IV&vToken2=1.8%20TDCi