P0410 on Volkswagen
Secondary Air Injection System Malfunction
P0410 on Volkswagen vehicles indicates secondary air injection system malfunction. Au7o has documented this code across 1 Volkswagen model — most commonly on Phaeton. P0410 indicates the engine computer detected a malfunction in the secondary air injection system, which pumps fresh air into the exhaust during cold starts to help the catalytic converter heat up and burn off pollutants faster. The system uses an air pump, valves, and hoses, and the computer monitors whether the expected airflow and resulting oxygen-sensor response actually occur. When the system doesn't perform as commanded — too little or no airflow detected — it sets this code. It generally points to a failed pump or stuck valve and primarily affects emissions, especially during the first minutes after a cold start. Typical repair costs on Volkswagen range from $300 to $1,200, depending on the specific model and root cause.
Common Causes of P0410
- •Failed secondary air injection pump (seized or worn motor)
- •Stuck or faulty air injection / check valve
- •Vacuum or electrical control problem to the air switching valve
- •Cracked, disconnected, or clogged air injection hoses
- •Moisture or corrosion damage inside the air pump
- •Blown fuse or relay for the air pump
- •Faulty wiring or connector in the air injection circuit
P0410 on Volkswagen by Model
Volkswagen Phaeton(1 issue)
- Secondary Air Injection Pump Failure on V8/W12 (P0410/P2440)2004-2016
The petrol V8 and W12 engines have a secondary air injection (SAI) pump used during cold start to reduce emissions. Moisture (naturally present in exhaust) backflows through worn one-way check valves into the pump, corroding/freezing it and causing failure. This triggers a check-engine light with SAI codes. On the Phaeton the pump sits above the front of the left wheel-well liner. A frequent re-failure cause is not fitting the drain tube to the pump housing during replacement.
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What does P0410 mean on Volkswagen?▼
P0410 stands for "Secondary Air Injection System Malfunction." P0410 indicates the engine computer detected a malfunction in the secondary air injection system, which pumps fresh air into the exhaust during cold starts to help the catalytic converter heat up and burn off pollutants faster. The system uses an air pump, valves, and hoses, and the computer monitors whether the expected airflow and resulting oxygen-sensor response actually occur. When the system doesn't perform as commanded — too little or no airflow detected — it sets this code. It generally points to a failed pump or stuck valve and primarily affects emissions, especially during the first minutes after a cold start. On Volkswagen specifically, this code is documented across 1 model.
What causes P0410 on Volkswagen vehicles?▼
Common causes on Volkswagen: Failed secondary air injection pump (seized or worn motor), Stuck or faulty air injection / check valve, Vacuum or electrical control problem to the air switching valve, Cracked, disconnected, or clogged air injection hoses, Moisture or corrosion damage inside the air pump. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0410 on a Volkswagen?▼
Repair costs on Volkswagen range from $300 to $1,200, depending on the specific model and root cause.
Which Volkswagen models have P0410 documented?▼
Au7o has documented P0410 on 1 Volkswagen model: Phaeton.