This content was compiled automatically and has not yet been reviewed by a technician. For reference only.
For reference only. Always confirm part numbers and procedures for your specific vehicle.
Fault diagnosis
Haval H6 HEV engine overheating: Load, coolant, fan and radiator checks
The coolant temperature enters the red zone, acceleration is weak or steam rises from the engine bay; the A/C compressor may also stop automatically.
Haval H6 HEV engine overheating: Load, coolant, fan and radiator checks
Symptoms
- The coolant temperature enters the red zone, acceleration is weak or steam rises from the engine bay; the A/C compressor may also stop automatically. [1]
Possible causes
- Extreme operating conditions such as pulling, towing, hill climbing or overloading cause engine overheating. [1]
- The manual's overheating checks include a cooling fan that is not operating, low coolant/pipework leaks and debris in the radiator core. [1]
Checks
- First stop safely and switch off the engine and air conditioning. After confirming there is no steam, or waiting for the steam to disappear, open the bonnet and restart the engine according to the manual, then check whether the cooling fan is operating. If the fan does not turn, switch off the engine and contact a service centre; if the fan operates normally, wait until coolant temperature starts falling, then switch off the engine. Once the engine has completely cooled, check coolant level, pipework leaks and debris in the radiator core; keep away from the running fan/belts. [1]
What to do
- If the fan does not turn or pipework leaks are present, contact an authorised service centre; after the engine has completely cooled, top up insufficient coolant as specified and remove radiator debris. Do not open the pressure cap or add coolant while hot; if the temperature enters the red zone again, have the vehicle inspected and repaired as soon as possible. [1]
Applicability and limits
- HAVAL H6 HEV English-language manual from GWM's official Malaysian website, hybrid; cover date copied as 10/05/2024. This date is not an applicable model year; confirm configuration, left-/right-hand drive and market differences against the vehicle. Internal brand/model/year mapping has not been established. Scope: unknown [1]
Related part categories
- Engine coolant [1]
- Cooling fan [1]
- Engine radiator [1]
- Coolant pipework [1]
Sources
[Source 1] Haval H6 HEV English-language Owner's Manual from the Official Malaysian Website — printed/PDF pp.252–253, 267: Engine overheating, Engine/drive motor coolant (accessed 2026-10-30)
https://www.gwm.com.my/content/dam/gwm/pages/my/en/exclusive-service/pdf/owner-manual-haval.pdf
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