Rear shock absorbers

[sbt]

Hi all i have recently purchased a 2017 a6 avant 2.0tdi ultra . I intend to replace the rear shocks but when i am looking for shocks on ebay and the like i am seeing some with electrical wires coming out the top . Are these for the air suspension only or is the wiring got something to do with the drive select system these cars have . I am a wee bit confused at the moment so any advice would be appreciated

[Crasher]

What is the VIN? There are sources other than fleaBay.

[sbt]

Hi once again thanks for the reply . The vin number is WAUZZZ4GXHN132719

[Crasher]

It will have either Monroe 4G9 513 035 or BWI (https://www.automotive-technology.com/products/bwi-group/passive-shock-absorbers-and-struts) 4G9 513 035 F and these are £158.40 retail inc. genuine Audi. I would offer a customer the choice of genuine or the Monroe 376213SP if I had two weeks lead time to get them in. ECP stock the Sachs 315 090 but their pricing is doesn’t make sense at £91.70 trade and £79.19 retail, that has to be an error.

[sbt]

Thanks for the info much appreciated