Audi S-Tronic mechatronic Repair

Common Failure symptoms:

• No reverse gear

• No gears above 1st

• Gears sticking

• No gears at all

• Limp home mode

• Harsh gear change

• Jerking / behaving erratically

Common fault codes:

• P0726 – RPM Signal Of Engine Control Unit (Implausible Signal)

• P173C – Valve 1 In Sub-gearbox 1 (Electrical Fault)

• P173F – Valve 2 In Sub-gearbox 1 (Electrical Fault)

• P1740 – Clutch Temperature Monitoring

• P174A – Valve 3 In Sub-gearbox 1 (Electrical Fault)

• P174B – Valve 4 In Sub-gearbox 1 (Electrical Fault)

• P174C – Valve 1 In Sub-gearbox 2 (Electrical Fault)

• P174C – Valve 2 In Sub-gearbox 2 (Electrical Fault)

• P174E – Valve 3 In Sub-gearbox 2 (Electrical Fault)

• P174F – Valve 4 In Sub-gearbox 2 (Electrical Fault)

• P176A – Gear Actuator/Selector 1 (Not Adjustable)

• P176A – Selector 1 Cannot Be Regulated

• P176B – Selector 2 Cannot Be Regulated

• P176B – Gear Actuator/Selector 2 (Not Adjustable)

• P179C – Main Pressure Valve (Electrical Fault)

• P179D – Cooling Oil Valve (Electrical Fault)

• P17D4 – Valve 2 in Sub-gearbox 1 (Mechanical Malfunction)

• P17D4 – Valve 3 In Sub-gearbox 1 (Mechanical Malfunction)

• P17D5 – Valve 3 in Sub-gearbox 2 (Mechanical Malfunction)

• P17D6 – Clutch 1 Pressure Too High

• P17D7 – Clutch 2 Pressure Too High

• P17D8 – Torque Limitation Due To Clutch Temperature

• P17E0 – Gear Actuator 1 Mechanical Error

• P17E0 – Gear Actuator/Selector 1 (Mechanical Error)