2021 BMW i3s Service and Repair Manual

This factory service and repair manual for the 2021 BMW i3s documents the four-door hatchback in Base, Range Extender, REX Sport and Sport form. Its power list holds battery-electric drive and a naturally aspirated 0.6L inline-two with a single overhead camshaft. Servicing one of these means treating the two as separate systems rather than as one drivetrain, and the manual is arranged that way, with specifications, torque values, wiring diagrams and diagnostics kept in their own sections.

Engines covered

• 0.6L I2 battery electric — SOHC, naturally aspirated
• Battery-electric drive (EV)

Body styles covered

• 4-door hatchback

Trims covered

• Base
• Range Extender
• REX Sport
• Sport

Known issues on the 2021 i3s. The manual's value is in the ordinary work it sets out. Battery-electric drive comes with its own service steps and diagnostic routines; the inline-two is covered as a combustion engine, with clearances and torque figures; and the hatchback's brakes, suspension, steering and body wiring are documented in the same detail, which is what a shop needs on a car this specialized.