Date Model Control unit address (e.g. 01) Diagnostic procedure
2.2.2026 Leon (5F) MQB (PQ37) 2013 - 2020 01 - Engine Adaptation - pressure difference sensor - exhaust recirculation
2.2.2026 Leon (5F) MQB (PQ37) 2013 - 2020 01 - Engine Security access: blocking detection
2.2.2026 Leon (5F) MQB (PQ37) 2013 - 2020 01 - Engine DPF regeneration
2.2.2026 Leon (5F) MQB (PQ37) 2013 - 2020 01 - Engine Clogging of diesel particulate filter - oil Ash
2.2.2026 Leon (5F) MQB (PQ37) 2013 - 2020 01 - Engine Start/Stop check
2.2.2026 Leon (5F) MQB (PQ37) 2013 - 2020 01 - Engine Test - idle stabilization
2.2.2026 Leon (5F) MQB (PQ37) 2013 - 2020 01 - Engine Temperature sensors test
2.2.2026 Leon (5F) MQB (PQ37) 2013 - 2020 01 - Engine Test: clutch pedal - pedal switch
2.2.2026 Leon (5F) MQB (PQ37) 2013 - 2020 01 - Engine Test - filling pressure control valve (N75) CUUx variant 2
2.2.2026 Leon (5F) MQB (PQ37) 2013 - 2020 01 - Engine Test - filling pressure control valve (N75) CUUx variant 1
2.2.2026 Leon (5F) MQB (PQ37) 2013 - 2020 01 - Engine Test - Intake air mass sensor CUUx
2.2.2026 Leon (5F) MQB (PQ37) 2013 - 2020 01 - Engine Test - exhaust recirculation CUUx
2.2.2026 Leon (5F) MQB (PQ37) 2013 - 2020 01 - Engine Basic settings - exhaust gas flap
2.2.2026 Leon (5F) MQB (PQ37) 2013 - 2020 01 - Engine Zeroing learning values - Low-pressure exhaust gas return valve
2.2.2026 Leon (5F) MQB (PQ37) 2013 - 2020 01 - Engine Zeroing learning values - cylinders: pressure sensor
2.2.2026 Leon (5F) MQB (PQ37) 2013 - 2020 01 - Engine Test - exhaust recirculation (GX6) - potentiometer (G466) CLHx
2.2.2026 Leon (5F) MQB (PQ37) 2013 - 2020 01 - Engine Test - exhaust recirculation (GX6) - servo motor (V339) CLHx
2.2.2026 Leon (5F) MQB (PQ37) 2013 - 2020 01 - Engine Test - Fuel metering valve (N290) CUUx
2.2.2026 Leon (5F) MQB (PQ37) 2013 - 2020 01 - Engine Test - fuel pressure regulation vlave (N276) CUUx
2.2.2026 Leon (5F) MQB (PQ37) 2013 - 2020 01 - Engine Test - coolant temperature - temperature sensor (G62)