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Vehicle Overview
The rear-wheel-drive BMW 1 Series enters its fifth year on the market with a few visual changes, as well as a new higher-performance version from BMW's M division, dubbed the 1 Series M. At the ot ...

Socket for OBD Onboard Diagnosis
Position There is an OBD socket on the driver's side for checking the primary components in the vehicle emissions. Emissions ▷ The warning lamp lights up: Emissions are deteriorating ...

1 Series M
Rather than the single-turbo setup from the 135i, the 1 Series M gets a twin-turbo six-cylinder that's good for 335 hp and 332 pounds-feet of torque. In extreme situations, the 1 Series M can ente ...