Date Model Control unit address (e.g. 01) Diagnostic procedure
8.2.2026 Tiguan (5N) MQB (PQ37) 2009 -> 01 - Engine Reducing agent SCR - AD-Blue - status check
8.2.2026 A6 / A7 (4G) C7 (MLB/PQ57) 2011 - 2018 01 - Engine Injector: corrective value - Test V3
8.2.2026 A6 / A7 (4G) C7 (MLB/PQ57) 2011 - 2018 01 - Engine Adaptation of injection valve after replacement R3
8.2.2026 A6 / A7 (4G) C7 (MLB/PQ57) 2011 - 2018 01 - Engine Bleeding (deaeration) - Engine cooling
8.2.2026 A6 / A7 (4G) C7 (MLB/PQ57) 2011 - 2018 01 - Engine Adaptation - pressure difference sensor - exhaust recirculation
8.2.2026 A6 / A7 (4G) C7 (MLB/PQ57) 2011 - 2018 01 - Engine Security access: blocking detection
8.2.2026 A6 / A7 (4G) C7 (MLB/PQ57) 2011 - 2018 01 - Engine DPF regeneration
8.2.2026 A6 / A7 (4G) C7 (MLB/PQ57) 2011 - 2018 01 - Engine Clogging of diesel particulate filter - oil Ash
8.2.2026 A6 / A7 (4G) C7 (MLB/PQ57) 2011 - 2018 01 - Engine Start/Stop check
8.2.2026 A6 / A7 (4G) C7 (MLB/PQ57) 2011 - 2018 01 - Engine Test - idle stabilization
8.2.2026 A6 / A7 (4G) C7 (MLB/PQ57) 2011 - 2018 01 - Engine Temperature sensors test
8.2.2026 A6 / A7 (4G) C7 (MLB/PQ57) 2011 - 2018 01 - Engine Test: clutch pedal - pedal switch
8.2.2026 A6 / A7 (4G) C7 (MLB/PQ57) 2011 - 2018 01 - Engine Test - filling pressure control valve (N75) CUUx variant 2
8.2.2026 A6 / A7 (4G) C7 (MLB/PQ57) 2011 - 2018 01 - Engine Test - filling pressure control valve (N75) CUUx variant 1
8.2.2026 A6 / A7 (4G) C7 (MLB/PQ57) 2011 - 2018 01 - Engine Test - Intake air mass sensor CUUx
8.2.2026 A6 / A7 (4G) C7 (MLB/PQ57) 2011 - 2018 01 - Engine Test - exhaust recirculation CUUx
8.2.2026 A6 / A7 (4G) C7 (MLB/PQ57) 2011 - 2018 01 - Engine Basic settings - exhaust gas flap
8.2.2026 A6 / A7 (4G) C7 (MLB/PQ57) 2011 - 2018 01 - Engine Zeroing learning values - Low-pressure exhaust gas return valve
8.2.2026 A6 / A7 (4G) C7 (MLB/PQ57) 2011 - 2018 01 - Engine Zeroing learning values - cylinders: pressure sensor
8.2.2026 A6 / A7 (4G) C7 (MLB/PQ57) 2011 - 2018 01 - Engine Measurement of compression pressure
 
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