How Often Should the Spark Plugs Be Replaced on a BMW 3 Series?
1 Answers
Spark plugs on a BMW 3 Series should be replaced approximately every 2 years or 40,000 kilometers. The function of spark plugs is to introduce the high-voltage electricity generated by the ignition coil into the engine cylinder, creating a spark between the electrodes of the spark plug to ignite the air-fuel mixture, thereby enabling the engine to operate. Taking the 2021 BMW 3 Series as an example, its body dimensions are: length 4719mm, width 1827mm, height 1459mm, with a wheelbase of 2851mm and a fuel tank capacity of 59 liters. The 2021 BMW 3 Series features a double-joint spring strut front suspension and a multi-link independent rear suspension. It is equipped with a 2.0T turbocharged engine, delivering a maximum horsepower of 156PS, a maximum power of 115kW, and a maximum torque of 250Nm, paired with an 8-speed automatic transmission.