
BMW spark plugs are manufactured by Bosch. The functions of spark plugs are: 1. To introduce the high-voltage electricity generated by the ignition coil into the engine cylinder; 2. To generate sparks between the spark plug electrode gaps to ignite the air-fuel mixture, ensuring the engine operates normally. BMW models include: BMW X3, BMW 5 Series, BMW X5, BMW M2, BMW M8, etc. Taking the 2020 BMW M8 as an example, it belongs to the full-size car category with body dimensions of: length 5104mm, width 1943mm, height 1420mm, wheelbase 3027mm, fuel tank capacity 68L, and trunk capacity 440L.

I often repair BMWs, and to be honest about spark plug brands, BMW usually uses Bosch or NGK when they leave the factory. From my experience, older 3 Series models mostly come with Bosch FR7DC+, while some newer ones use NGK Iridium. Spark plugs are crucial as they directly affect engine ignition efficiency. I've helped many owners with inspections—if not replaced on time, the car may shake or even consume more fuel. Genuine BMW spark plugs can last about 40,000 to 60,000 kilometers, but they should be replaced once worn. I recommend checking the specifications at a 4S shop and avoiding random off-brand replacements. Also, it depends on the model—high-performance versions tend to use more durable brands.

I've been into car modifications for years, and BMW engines are my favorite to tinker with. For spark plug brands, the OEM usually uses Bosch or NGK, but I've personally upgraded to Denso Iridium on my 335i – the acceleration feels super smooth. There are many brands on the market, and different materials yield different results. For example, iridium spark plugs last longer and provide a slight power boost, though they're more expensive. Mismatched spark plugs can make the car feel sluggish during acceleration, so it's best to check the owner's manual or choose recommended alternatives. The replacement process isn't difficult, but with BMW's precision engineering, you need to pay attention to the torque on the screws to avoid air leaks. Regular inspections can save you hassle and money – I usually replace them every 2 years.

I've used BMW for many years, and the spark plug brand is mainly Bosch, which is quite reliable. Genuine parts are usually durable and easy to maintain. Don't wait until problems arise to replace them. Remember to follow the manual for maintenance to avoid breaking down halfway.


