× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
2015 Audi A5 Quattro Cabriolet 2.0L MIL Lamp on
Posted to European Driveability on 8/18/2020 8 Replies

The car has a chronic P0299 underboost code. There are no vacuum leaks and common items have been changed. See above. The car runs fine but the code returns after 3-4 drive cycles. Fuel trim is ok and improved after vent valve was changed. Any help would b...

8 Replies Received (View Replies)

  Related Documents & Media  2015 Audi A5 Quattro Cabriolet

 
Message Closed w/FIX

car Vehicle Data

2015 Audi A5 Quattro Cabriolet

VIN WAUMFAFH9F
Engine2.0 L / 4 cyl / GAS
Trans8-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursHot, Under Load

Trouble Codes

P0299Turbocharger Underboost Problem
Message Closed w/FIX

car Vehicle Data

2015 Audi A5 Quattro Cabriolet

VIN WAUMFAFH9F
Engine2.0 L / 4 cyl / GAS
Trans8-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursHot, Under Load

Trouble Codes

P0299Turbocharger Underboost Problem