Toyota bZ4X, EAM (EU)

Differential fluid capacity & service interval

Toyota bZ4X, EAM (EU) differential fluid capacity is 3,1 liters. Service intervals include checks at 48 months or 60000 km, checks at 45000 km or 36 months, and changes at 90000 km or 72 months. The data covers 2 configurations.

The configuration chart below lists fill volumes and service intervals for each engine and trim variant.

TypeSpecifications
  • bZ4X (160 kW) AWD (2022- )
  • Rear, electric drive
  • Use: Normal
  • Capacity 3,1 liter
  • Check 48 months/ 60000 km
  • Code: QA10 1/1
  • bZ4X (160 kW) AWD (2022- )
  • Rear, electric drive
  • Use: Severe
  • Capacity 3,1 liter
  • Check 45000 km/ 36 months
  • Change 90000 km/ 72 months
  • Code: QA10 1/1

Additional Notes

  • The Toyota bZ4X (160 kW) AWD carries a rear electric drive differential fluid capacity of 3.1 liters, a figure that reflects a service fill volume rather than a full overhaul quantity, as electric drive differentials are sealed units not typically drained to zero during routine maintenance.
  • Under normal use conditions, the rear differential fluid on the bZ4X (160 kW) AWD is subject to a check interval of 48 months or 60,000 km, with no separate change interval specified for that condition.
  • Under severe use conditions, the check interval shortens to 36 months or 45,000 km, reflecting the increased stress placed on the fluid under demanding operating circumstances.
  • A fluid change interval of 90,000 km or 72 months applies exclusively under severe use conditions, meaning a periodic drain and refill of the 3.1-liter capacity is tied only to that operating classification.
  • The gap between the severe-use check interval of 45,000 km and the change interval of 90,000 km indicates that at least one inspection is expected to occur before a full fluid replacement becomes due under severe conditions.

Other Systems