Parts for your 2017 Haval H6-Heater tap

2017 Haval H6 — Is a heater tap fitted, and does it matter?

Based on OEM technical information, a heater tap (also called a heater control valve) is not used on the 2017 Haval H6. The Haval H6 (2015–2018 series) workshop manual’s Heating/Ventilation/Air Conditioning (HVAC) system description specifies temperature control via an air‑mix/blend door within the HVAC box, with continuous coolant flow through the heater core. Likewise, the Great Wall Motors/Haval electronic parts catalogue for the same model and years shows heater hoses routed directly to the heater core with no separate heater water valve listed in the heating group. Together, these sources indicate the H6 does not employ an inline heater tap.

Why the H6 skips a heater tap comes down to design efficiency and reliability. Modern HVAC architectures often keep the heater core hot at all times and vary cabin temperature by blending hot and cold air using a servo‑driven flap. This reduces under‑bonnet plumbing, removes a failure‑prone valve, and improves rapid demist performance in cool, damp conditions—handy across Australia and New Zealand. It also simplifies engine warm‑up management, as coolant circulation to the heater core isn’t throttled by a valve.

• Fewer parts under the bonnet: less to leak, seize, or rattle.
• Better, quicker windscreen demist because the core stays hot and ready.
• Simpler serviceability—no valve or cable linkage to replace or adjust.
• Smooth temperature modulation handled by the HVAC blend door actuator and control module.

Without a heater tap to service, attention for cabin‑heat issues on a 2017 H6 should focus on the basics and the HVAC air‑mix system. Good practice during scheduled servicing includes:

• Coolant quality and level checks, plus timely coolant replacement per the maintenance schedule (use the specified long‑life coolant and correct mix).
• Inspection of heater hoses for softness, swelling, or seepage, and clamps for tension.
• Bleeding the cooling system properly after coolant work to avoid airlocks that cut heater performance.
• Cabin filter (pollen filter) replacement—restricted airflow can feel like weak heat.
• HVAC blend door actuator function checks if temperature changes are erratic or stuck, faults here mimic a “bad heater tap”.
• Thermostat and coolant temperature sensor health—if the engine runs too cool, cabin heat will be poor.

Technical sources referenced: Haval H6 (2017) Workshop Manual, HVAC System Description, GWM/Haval Electronic Parts Catalogue, Heating and A/C groups.

Popular questions

Does the 2017 Haval H6 have a heater tap or heater control valve?
No. The model uses a constantly hot heater core and an internal air‑mix (blend) door to regulate cabin temperature. This layout is confirmed in the H6 workshop manual’s HVAC description and the GWM/Haval parts catalogue, which lists no separate heater water valve for this year and model.

How does the H6 regulate cabin heat without a heater tap?
An electric actuator moves a blend door inside the HVAC box to mix air passing through the hot heater core with cooler bypass air. The HVAC control module commands the actuator based on the set temperature and sensor inputs, giving smooth, precise temperature control without interrupting coolant flow.

What should be checked if a 2017 H6 has weak or no heat?
Start with coolant level/quality and signs of air in the system after any cooling work. Check the cabin filter for blockage, verify the thermostat reaches normal operating temperature, and feel the heater hoses for equal warmth (a big difference can indicate a restricted core). If temperatures don’t respond to settings, the blend door actuator or its linkages may need attention.