Date Model Control unit address (e.g. 01) Diagnostic procedure
2.2.2026 Leon (5F) MQB (PQ37) 2013 - 2020 01 - Engine Test of fuel temperature sensor (G81)
2.2.2026 Leon (5F) MQB (PQ37) 2013 - 2020 01 - Engine Test - Intake air mass sensor - test drive
2.2.2026 Leon (5F) MQB (PQ37) 2013 - 2020 01 - Engine Test of cruise control
2.2.2026 Leon (5F) MQB (PQ37) 2013 - 2020 01 - Engine Adaptation: oil presure for engine run-in
2.2.2026 Leon (5F) MQB (PQ37) 2013 - 2020 01 - Engine Basic settings - Low-pressure exhaust gas return valve
2.2.2026 Leon (5F) MQB (PQ37) 2013 - 2020 01 - Engine Basic settings - exhaust gas return valve 1 (GX5)
2.2.2026 Leon (5F) MQB (PQ37) 2013 - 2020 01 - Engine Zeroing learning values - Intake air mass sensor
2.2.2026 Leon (5F) MQB (PQ37) 2013 - 2020 01 - Engine Zeroing learning values DPF - If replaced: engine control unit
2.2.2026 Leon (5F) MQB (PQ37) 2013 - 2020 01 - Engine Adaptation: soot clogging DPF - If replaced: DPF
2.2.2026 Leon (5F) MQB (PQ37) 2013 - 2020 01 - Engine Adaptation of DPF differential pressure sensor
2.2.2026 Leon (5F) MQB (PQ37) 2013 - 2020 01 - Engine Adaptation of injection valve after replacement CLHx;CNHx
2.2.2026 Leon (5F) MQB (PQ37) 2013 - 2020 01 - Engine Test of the condition of the diesel particulate filter - oil ash CLHx;CNHx
2.2.2026 Leon (5F) MQB (PQ37) 2013 - 2020 01 - Engine Bleeding (deaeration) - Engine cooling
2.2.2026 Leon (5F) MQB (PQ37) 2013 - 2020 01 - Engine Creation of readiness
2.2.2026 Leon (5F) MQB (PQ37) 2013 - 2020 01 - Engine Zeroing learning values - Quantity measuring unit - regulator valve
2.2.2026 Leon (5F) MQB (PQ37) 2013 - 2020 01 - Engine Turbo blower - replacement (adaptation)
2.2.2026 Leon (5F) MQB (PQ37) 2013 - 2020 01 - Engine Adaptation of injection valve after replacement R4
2.2.2026 Leon (5F) MQB (PQ37) 2013 - 2020 01 - Engine Adaptation of DPF differential pressure sensor
2.2.2026 Leon (5F) MQB (PQ37) 2013 - 2020 01 - Engine Bleeding of fuel system - variant 2
2.2.2026 Leon (5F) MQB (PQ37) 2013 - 2020 01 - Engine Test of the condition of the diesel particulate filter