Audi, Audi Case Studies, Blog, Car Repair and Servicing, Case StudiesAudi Case Study 19: Audi A5 had a sudden loss of engine power and misfiring Posted on November 25, 2020November 25, 2020 by admin 25 Nov Jason was stressed by the sudden loss of engine power and misfiring on his Audi A5 SportbackA VCDS fault code scan and found that Turbo valve was faultyThe faulty Turbo valve was replaced due to high mileageA set of Spark plugs was replaced to optimize engine combustionThis Audi A5 is now ready to be returned to Jason admin Spray Painting Services in Revol Served by Professionals! This Mercedes Benz E200 send in for Full Car Spray Painting!