Philuk

Front end knock has started today after a long journey when pulling away it starts until I reach 4th gear and goes away 

anyone had anything like this or any ideas what to look for 

thanks

I have drove the car until battery at 100% 

run vcds and no faults found

I have ran VCDS and found a fault = 02983 - Connection between Impedance Converter 1 and Window Antenna 
            011 - Open Circuit - Intermittent

can anyone tell me where to locate impedance converter 1

I have borrowed the vcds and unable to get support from ross tech

any help would be much appreciated.

car is 2011 Audi a4 b8 1.8 VIN: WAUZZZ8K5CA0XXXXX

go back into adaptions then car menu 1  when the options pop up enter the number of the first option 1 and the last 256 ie. 1256 test then save this will enable all options including battery do the same in car menu 2 to get the service option on hope this makes sense.

They are 255/35/19  9.5j just wanting to know if they will fit before I buy them

audi a4 2011 se

thanks