MG ZS Fault Codes & Diagnostics
The MG ZS uses the standard OBD-II diagnostic system, which means the generic fault codes it produces — P0, P2, and P34-P39 powertrain codes, plus B0/C0/U0 body, chassis, and network codes — carry the same meaning as on any other OBD-II vehicle, as defined by the SAE J2012 standard. Look your code up below to get its meaning, severity, whether you can keep driving, and the likely fix.
- Diagnostic standard
- OBD-II (generic codes universal)
- Popular in
- United Kingdom, Australia, Southeast Asia
- Code lookup
- 13,000+ codes, free
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Or browse all codes by category — engine, transmission, emissions, EVAP, network, body, and chassis.
Most-Searched Codes
The most-searched OBD-II codes on Car Code Finder — generic codes apply to the MG ZS like any OBD-II vehicle.
- P0420 Catalyst System Efficiency Below Threshold (Bank 1) moderate
- P0300 Random/Multiple Cylinder Misfire Detected critical
- P0171 System Too Lean (Bank 1) serious
- P0455 Evaporative Emission Control System Leak Detected (Large Leak) moderate
- P0128 Coolant Temperature Below Thermostat Regulating Temperature moderate
- P0442 Evaporative Emission Control System Leak Detected (Small Leak) minor
- P0301 Cylinder 1 Misfire Detected serious
- P0303 Cylinder 3 Misfire Detected serious
Manufacturer-Specific Codes
Manufacturer-specific codes (P1xxx and brand B/C/U ranges) can differ by market and model year, and MG does not publish a complete public list for every market. Where our catalog has a verified entry for a manufacturer code, the page says so and cites its source; where documentation doesn't exist, we say that too — no guessing. See how we verify.
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Frequently Asked Questions
Is the MG ZS OBD-II compliant?
Nearly all recent model years of the MG ZS sold worldwide use the OBD-II diagnostic system, so generic fault codes read the same as on any other OBD-II vehicle. Very old examples may pre-date OBD-II in some markets — check your vehicle's documentation if you're unsure.
Where is the OBD-II port on the MG ZS?
On most vehicles the OBD-II port is under the dashboard on the driver's side, near the steering column. See our OBD-II port location guide for help finding it.
Are MG ZS fault codes different in my country?
Generic OBD-II codes (P0, P2, P34-P39, B0, C0, U0) are identical everywhere — they're defined by the SAE J2012 standard, not by market. Manufacturer-specific codes (P1xxx and brand B/C/U ranges) can vary by market and model year.
Sources
This page is built from documented references. Verify against your own service info before repair work.