hi .. like to install  vw generic parking sensors or as near to on my 07 tdi vrs .. (cr engine).. . is it just a case of buying sensors and drilling holes and connecting to the loom/ controller .. or do i need to buy a loom and a  controller .. then some how connect into the car  ???

i believe if i have the loom and controller it will be by  offside rear arch ???   

 

also  i like to upgrade the the bulbs to led 

 running lights,

rear brake ,

indicators rear  side and front ,

and reverse .

is this like for like swap or will you  get errors  ? so a can bus  unit is necessary ???😀

 

 

 

I used these for the DRL

 

https://www.ebay.co.uk/itm/283319454881

 

They work fine and don't trigger the error indicator. So the vendor seems to know what they are doing and you might find other bulbs you need in their 'shop'.