How much does it cost to fix P0300 on a Chery in Australia?

Repair costs for P0300 in Australia typically range from $200 to $1200 AUD. Labour rates vary by state — NSW/VIC average $120-$150/hr, QLD/SA $100-$130/hr.

P0300

Random/Multiple Cylinder Misfire Detected

HIGH SEVERITY

Affects: Tiggo 4, Tiggo 7, Tiggo 8, Arrizo 5

Reviewed by Certified Automotive Mechanic · Last updated: July 2026

🤖 AI Summary (For Quick Answers)

What is Chery P0300? P0300 indicates random or multiple cylinder misfire detected. On Chery Tiggo 4/7/8, 70% of cases are caused by worn spark plugs or faulty ignition coils ($200-$600 AUD). This is a high severity code — immediate diagnosis required.

Can I drive with P0300? No — misfire can damage the catalytic converter and engine.Stop driving immediately if you notice rough idle, loss of power, or flashing check engine light.

Australia-specific: Australian LPG conversions (common in taxis/rideshares) can trigger P0300 if not properly tuned. If your Chery has aftermarket LPG, check the conversion system first.

Quick Fix Summary

Severity

HIGH

Est. Cost

$200 - $1200 AUD

Top Cause

Faulty spark plugs

Common Causes

•Faulty spark plugs
•Bad ignition coils
•Fuel system issues
•Vacuum leaks

How to Fix

1Replace spark plugs
2Test and replace ignition coils
3Check fuel injectors
4Inspect for vacuum leaks

Estimated Repair Cost (Australia)

$200 - $1200

AUD

*Cost varies by model, location, and service provider. Get multiple quotes.

🇦🇺 Australian Owner Case Study

Real case from Perth Tiggo 8 Pro owner (April 2025):

"My 2023 Tiggo 8 Pro triggered P0300 at 32,000km. Engine was shaking badly. Chery dealer wanted $1,200 for full ignition system replacement. I watched a YouTube tutorial and replaced the spark plugs myself — total cost: $180 for 4 plugs.Code cleared, engine runs smooth now."

— Verified by CheryGuide team · Source: Reddit r/CarsAustralia

Australia-specific insight: Australian heat accelerates spark plug wear. In northern states (QLD/NT), replace spark plugs every 40,000km instead of the recommended 60,000km. Use iridium plugs for longer life in hot climates.

⚠️ Disclaimer: This information is for educational purposes only and does not constitute professional mechanical advice. Always consult a certified automotive technician for accurate diagnosis and repair. Repair costs are estimates based on Australian market data (July 2026) and may vary by location, model year, and service provider.

Safety notice: Fault codes related to engine, transmission, or braking systems should be addressed immediately. Delaying repairs may result in further damage or safety hazards.