奇瑞QQ/比亚迪473QE 怠速马达 BT90685 圆头设计精准匹配

Chery QQ and BYD 473QE engine idle motor BT90685 uses a round-head design, compatible with 1.0L/1.1L (2003–2013) and F3, L3 models; ensures close fit with the throttle body. OEM 473QE, corresponds to original part BT90685 for inventory cross-checks. Core function automatically adjusts idle intake to stabilize idle speed, preventing stalling or rough running. Replacement difficulty is low; only two screws on the throttle body need removal; cleaning the throttle body is recommended.