Learn more about the Audi P004200 code.
P004200 OBD-II Trouble Code
Understand what P004200 means for your Audi and book further diagnostics with our VAG specialists.
What is Code P004200?
When your Audi’s check engine light turns on and shows this code, it means the On-Board Diagnostic (OBD-II) system has detected an issue with O2 Sensor Heater Contr. Circ.(Bank1(1)Sensor 3).
P004200
O2 Sensor Heater Contr. Circ.(Bank1(1)Sensor 3).
P004200 – Technical Description
- Audi OBD-II Code: P004200
- Fault Type: O2 Sensor Heater Contr. Circ.(Bank1(1)Sensor 3)
How We Diagnose Audi Fault Code P004200
At VGS Performance, we use dealer-level Audi diagnostic tools to confirm the root cause before any repair work begins. Our diagnostic service includes:
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FAQs About Code P004200
What does P004200 mean on an Audi?
It indicates a fault with O2 Sensor Heater Contr. Circ.(Bank1(1)Sensor 3).
What does an Audi OBD-II code mean?
Every code points to a specific fault detected by your Audi’s onboard computer. So codes such as P004200 helps our Swindon technicians locate issues faster and more accurately.
Can I clear OBD codes myself?
You can clear codes with a scanner, but if the issue hasn’t been properly fixed, the fault will return. It’s best to bring your Audi in so we can diagnose and resolve it correctly.
Audi Models Commonly Affected by Code P004200
The Audi P004200 fault code can appear across a range of models and engines within the Audi lineup. Because many vehicles share similar electronic and timing systems, this code isn’t limited to one particular model.
We’ve seen codes like P004200 appear on cars such as the Audi A3, A4, A5, Q5 and TT, as well as other petrol and diesel variants. In most cases, it’s the engine management system detecting a performance or communication issue that needs to be checked.
Whether you drive a compact Audi A3 or a larger Q-series SUV, our diagnostic equipment can read and interpret the fault accurately. Once identified, we’ll confirm the cause and advise on the best next step to keep your Audi running as it should.
Although the fault details vary, the core issue usually relates to O2 Sensor Heater Contr. Circ.(Bank1(1)Sensor 3), which requires accurate testing and data analysis. We use dealer-level VAG diagnostic tools to monitor live data, verify system performance, and pinpoint the exact cause before carrying out any repairs.
Need Help with Code P004200?
If you’ve scanned your Audi and found P004200 If you’ve scanned your Audi and found P0010, our team can confirm the fault and carry out any repairs needed. We use official VAG equipment to ensure accuracy and reliability.
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