2021 BMW 330e Service and Repair Manual

This factory service and repair manual for the 2021 BMW 330e covers a four-door sedan offered as Base and Sport Line Plus, with the turbocharged 2.0L DOHC inline-four of 122 cubic inches in plug-in hybrid form. Both trims share the same drivetrain, so the split in this book is not between trims but between systems: gasoline engine work, high-voltage hybrid work, and the conventional sedan chassis, brake and body material that applies whichever badge the car wears.

Engines covered

• 2.0L inline-four plug-in hybrid (122 cu in) — DOHC, turbocharged, gasoline

Body styles covered

• 4-door sedan

Trims covered

• Base
• Sport Line Plus

Known issues on the 2021 330e. Five recalls sit on the federal record. Two concern the hybrid battery: in one, debris trapped in the cells during production can short a cell and start a fire; in the other, loose welding beads can bridge cells and do the same. Two concern restraints — a retractor that may not hold an occupant in a crash, and a seat belt anchor bolt left under-tightened. The fifth concerns a rearview image that can be missing or reduced when reversing. Four complaints are on record, two of them on the power train.