Parts for your 2020 Toyota Vitz|yaris-Drive belt

2020 Toyota Vitz/Yaris Drive Belt

Technical sources indicate that whether a drive belt is used on the 2020 Toyota Vitz/Yaris depends on the engine. Toyota’s Repair Manual for the 2020 Yaris petrol models (MXPA10/MXPA15 with the M15A-FKS engine) includes a “V‑Ribbed Belt” service procedure, confirming a conventional accessory drive belt is fitted. By contrast, Toyota’s New Car Features (NCF) for the 2020 Yaris Hybrid (MXPH10/MXPH15 with the M15A‑FXE) describes a beltless layout: the water pump is electric, the air-conditioning compressor is electric, and charging is handled by a DC‑DC converter rather than an alternator—so no accessory drive belt is used. The Toyota Electrical Wiring Diagram (EWD) and Toyota Electronic Parts Catalogue (EPC) reflect the same: a listed belt for M15A‑FKS, and none for M15A‑FXE.

For 2020 Yaris/Vitz petrol models (M15A‑FKS), the drive belt—often called a serpentine or V‑ribbed belt—spins the alternator and the A/C compressor. It’s a tough, low‑maintenance component, but like any rubber part, it ages with heat, time and kilometres. Toyota sets the belt up with an automatic tensioner, so there’s no periodic adjustment