Audi A3 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your Audi A3
Verified by mechanics, reported by drivers like you
Ask a mechanic in our community
Our experts translate recalls into plain English
Audi A3 ProblemsDecreased Power and Fuel Economy from Carbon Buildup
The 2006 - 2017 Audi A3 2.0FSI, 2.0TFSI, and 3.2FSI direct injection engines are subject to carbon buildup in the intake system which can cause power loss, OBD codes and a check engine light, and a rough idle. In normal engines, the engine is cleaned by the gasoline flowing through the injectors and into the intake system, however, the A3 uses direct injection so gasoline does not flow through common carbon buildup areas.
The solution is to remove the intake manifold and professionally clean the intake manifold, intake ports on the cylinder head, and the intake valves. This may need to be done in as few as 20,000 miles.
2.0L turbo charged engines may develop a hesitation on acceleration and/or illumination of the Check Engine Light due to a failed high pressure fuel pump or a worn camshaft follower or camshaft. Our technicians tell us that whenever the high pressure fuel pump is replaced the camshaft and the follower should be checked for wear. The camshaft lobe pushes on the follower to operate the high pressure fuel pump. Frequent oil changes and use of synthetic oil may help with this wear issue.
An engine misfire may develop from one or more cylinders resulting in a loss of power and illumination of the Check Engine Light. Our technicians tell us that ignition coil failure is a common cause for this concern. On high mileage vehicles it may be wise to consider replacing all of the ignition coils if one fails to try and avoid future misfire issues on another cylinder.
Audi A3 Questionscoil failure (1 answer)
how to test colis
how long can i drive this for. I'm five hours from carman if i need to trade it in. or should i fix it for 1000.00
The timing belt broke sending the Pistons thru the engine. It was inspected by the extended warranty company we have and they agreed it had to be replaced. They pay 3,500 leaving us to cover the rest so can someone help us know if 5,100 is a fair deal? Thank u.
Audi A3 RecallsAnti-lock Brake System, Electronic Stability Control Fails
The anti-lock braking system and electronic stability control may fail to activate when needed due to a failure of the control unit that operates the systems. Dealers will update the anti-lock brake system control module software to perform a diagnostic test, and will replace units that fail this test free of charge to resolve the concern.
Fuel may leak from the fuel tank into the evaporative emissions charcoal canister filter element, and then externally. Dealers will replace the suction pump inside the fuel tank free of charge to resolve the concern.
The side marker lights may not illuminate when the headlights or parking lights are on. Dealers will upload revised software to the vehicle to correct the concern free of charge.