2020 BMW 128i Coupe (E82) L6-3.0L (N51) Diagnostic Trouble Codes ( DTC ): Service instruction
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2A00 - P0492 (DME)
2A00 - P0492
Information saved in
DME
Fault code
2A00 - P0492
Fault text
Secondary-air system
Fault description
Secondary Air Injection System Insufficient Flow (Bank 2)
Condition for fault identification
Test condition:
Activation conditions:
Engine start
Secondary air-injection must be active
Ambient temperature >3 锟斤拷C
-3.8 锟斤拷C < Coolant temperature < 50.3 锟斤拷C Terminal condition: Terminal 15, engine start Voltage condition:
Vehicle electrical system voltage (battery voltage between 7 & 15 V)
Condition for fault memory entry
40 sec.
Action in service
Remove secondary air-injection valve and clean the passage to Bank 2 (in engine block)
Install valve again and run through EOL test. If the malfunction is registered again, repeat steps 1 and 2.
Fault effect and breakdown warning
Driver information Warning light: MIL
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