Hi all I am very new to all this don't know if this is the right place to post this the problem but I've brought a Audi A4 1.8T on a 53 reg and love it very much I did noticed sometimes a rough idle when ticking over so I got a scanner and god got a list of codes don't know where to start codes are 17544. 16395. 17705. 18010. 16891. 16684. 16687. Does this mean it's got lots of problems any help would be great as don't know where to start it's not a good start is it (