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GWM Tank 500: Common Problems & Reliability Guide (South Africa)

Also covers: Tank 500 3.0TD, Tank 500 HEV

Real, sourced data · last reviewed 2026-09-07
30+ years of practical automotive experience behind these reports - our sourcing methodology

These are issues documented for the GWM Tank 500 in general - things to check for, not a diagnosis of any particular car. Whether a specific car has one depends on its age, mileage, service history and how it was used.

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HEV Real-World Fuel Consumption Shortfall, Plus Wiring Harness Recall (Australia)

Fuel consumption / hybrid-system real-world efficiency; ADAS calibration (finding 1); High-voltage electrical system, hybrid powertrain (finding 2) · severity: Moderate for finding 1 - a real, significant, and consistently-reported running-cost gap (in some reports, real-world consumption more than double the claimed figure) rather than a mechanical defect; genuinely material to a buyer's actual cost-of-ownership expectations given this is a large, heavy vehicle. Higher for finding 2, mirroring a related documented issue's own Tank 300 HEV finding - GWM's own recall filing uses explicit safety language if the wiring defect is present and unaddressed. · confidence: 50/100 · 3 cited sources
Applies to: 2.0T HEV petrol-hybrid, 255kW/648Nm combined (current SA-market standard powertrain) / 3.0L turbodiesel (confirmed for South African introduction September 2026, per GWM SA's… - not every engine this model has been sold with
ⓘ Not yet individually classified

Symptoms to watch for

  • Real, SA-sourced, independently corroborated across two separate AutoTrader SA articles: real-world fuel consumption of 12-20L/100km against a manufacturer-claimed 8-8.5L/100km combined figure - a genuinely large, consistent gap, not a single outlier report
  • Real, SA-sourced: ADAS oversensitivity shared with the closely related Tank 300 - Lane Keep Assist and forward collision warning triggering false dashboard warnings, and an adaptive cruise control follow-distance described as needing adjustment for South African road conditions/traffic patterns
  • Finding 2 (HEV/PHEV variant only, per GWM's own real recall filing): illuminated warning lights, reduced vehicle torque, and reduced hybrid-system cooling performance if the wiring harness defect is present and unaddressed

What To Check

Finding 1 (the fuel-consumption gap) is not reliably assessable on a short test drive - it requires either a longer real-world evaluation or trusting the independently-corroborated SA press figures over the manufacturer's claim. ADAS behaviour is directly testable. Finding 2 (the HEV/PHEV wiring harness defect) is NOT detectable through inspection or a normal test drive - its only reliable check is a VIN-based dealer recall/inspection lookup, identical to this platform's established approach for the sibling Tank 300 HEV recall and the P500 EPS wiring recall.

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This guide summarises documented, sourced findings for the GWM Tank 500 generally. It is not an assessment of any specific vehicle - mileage, service history and condition vary by example. A full AutoLytiQs™ report checks a specific listing for sale against this data plus a live South African market valuation, to tell you whether that exact vehicle is a good buy.

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