Remove the oil cap and hold onto it for a few minutes. There will be two 10mm screws that hold down the left engine cover. You’ll need to remove this cover and set it to the side before replacing the oil cap. Now you’re ready to remove the coils on top of the spark plugs. A single coil would provide the spark power for the entire engine (or sometimes two coils for larger "V" engines). The canister-style ignition coil remained in regular production use right up to the 1990s. In the early 1990s BMW switched from the canister-style ignition coil with spark plug wires to a "coil on plug" direct ignition system. Shop OEM BMW Spark Plugs at BMW Parts Deal Up to 40% off Now! We offer factory BMW Spark Plugs for all BMW series and models. 320i | 2013-2018 | Sedan(F30) For me, the coils and plugs are independent of the valve cover gasket. For my non-turbo BMWs, I replace coils and plugs every 100k miles. For my turbo-equipped cars, I look at 60k mile intervals. This approach has kept me ahead of failures, as the car would be very uncomfortable to drive with a failed coil. 1984 BMW 320i gray market. I think its the same engine as the 325e. Its a six cylinder. I replaced the rotor, rotor cap, spark plugs & spark plug wires. The vehicle turns over but doesnt crank up. Its … read more Or you may just be struggling to keep it highway-approved. No matter the situation, Advance Auto Parts has the Spark Plug product you desperately need. We currently carry 18 Spark Plug products to choose from for your 1983 BMW 320i, and our inventory prices range from as little as $2.79 up to $12.99. On top of low prices, Advance Auto Parts IG: @c.deluciaGET YOUR PARTS HERE ⬇⬇ My affiliate links are listed below NGK Spark Plugs: http://bit.ly/2uC3stM New Ignition Coils and Plugs Kit: http://bi As ignition coils and spark plugs play an essential role in the ignition process, old or faulty spark plugs or coils that generate a weaker spark may not be able to fully burn the air/fuel mixture. This can potentially cause many various issues on your BMW, including: Loss of power, responsiveness, and acceleration. Rough idling or stuttering. 8m1q.