2013 BMW 135i Service and Repair Manual

This factory service and repair manual for the 2013 BMW 135i describes a turbocharged 3.0L DOHC inline-six in a two-door convertible and a two-door coupe, sold as Base and M Sport. The boost side of that engine — charge-air ducting, wastegate control and the high-pressure fuel supply feeding it — has diagnostic chapters of its own, kept apart from the base engine mechanical work, and the pressures, clearances and torque values quoted through both are the factory's own figures rather than generic ones.

Engines covered

• 3.0L inline-six — DOHC, turbocharged, gasoline

Body styles covered

• 2-door convertible
• 2-door coupe

Trims covered

• Base
• M Sport

Known issues on the 2013 135i. Two recalls are recorded for this model year, and both concern the driver's frontal air bag inflator, which can rupture when the bag deploys and send sharp metal fragments toward the driver and other occupants. The complaint record is small at 15, but 10 of those entries also name air bags, with a couple on the power train and one on steering. Restraint system service, the fault codes behind an air bag warning lamp, and the driveline and steering procedures those remaining entries touch are all set out here.