Audi A3 2.0tdi bkd s line 2007

[Adam west]

Hi how's everyone doing yesterday I changed the injector seals on A3 2007 2.0tdi s line I tried starting and it just wouldn't turn was just like a constant tick tick noise then it just wouldn't start I've put a voltage meter to the battery and all is good the ECU would play up and show messages like esp unavailable, oil pressure,or battery is low while charge when driving.any help please thanks adam

[Steve Q]

I'd recommend a diagnostic check to see if any fault codes flag up