Spark Plugs: $65-89 DIY, $120+ at an independent repair shop. Ignition Coils: $159 DIY, $250+ at a repair shop. BUY BMW N20 IGNITION COILS HERE. BUY BMW N20 SPARK PLUGS HERE. 2. BMW N20 Engine Oil. Although it is obvious engine oil must be changed as a part of standard maintenance, it is relatively unclear how often. WHAT TOOL DO I NEED TO REPLACE SPARK PLUGS ON BMW 316i 318i 320i 325i 328i 330i 335i 340i 420i 428iIn this video we will explain what special tool you need i LOL @ bmw guys not knowing about spark plugs. Obviously they wanted to use crappy plugs on the cars because good performance is just such a bad thing. Uh.. no, but they wanted to save $50 on a 40K+ car. uh.. no. The guy with a GED working behind the autozone counter knows BMW engines better than the team of engineers that designed and made it. Use a wire brush or compressed air to clean up around the wire connections and make sure you've got a good, clean port. Replace the wires if necessary. [10] 3. Insert the new plugs and tighten with your ratchet. Using the spark-plug socket, remove each plug from the engine, and replace each with a new spark plug. Is your car jerking? is it loosing power? well it might be time for new spark plugs, they go bad around 40,000 miles, SO I made a video about my experience w OEM NGK BMW N20 Spark Plugs (Pictured) - NGK SKU: 97506. OR. Bosch BMW N20 Spark Plugs - Bosch SKU: 8165. Free Shipping & No Taxes! These spark plugs are direct replacements for all BMW N20 engines, found in the 228i, 320i, 328i, 428i, 528i, and BMW X 28i models. OEM NGK spark plugs are highly recommended for all modified N20 BMW engines, as This part fits 2012-2016 BMW 328i, 2011-2016 BMW 528i, 2011-2017 BMW X3, 2016-2018 BMW X5. Affordable, reliable and built to last, BMW part # 12120039664 Spark Plugs stands out as the smart option. BMWPartsDeal.com is your prime online source with the biggest and best selection of genuine BMW parts and accessories at giant discounted prices. These spark plugs have less then 10,000 miles on them. Autozone would not warranty them and asked that I contact Bosch to have them replaced. I have used Bosch Platinum plugs since they were factory installed on my first new 1999 BMW 323is and never had problems with them for 100,000 miles, the recommended service interval by BMW. Talent. Tools: Set of sockets, 12 point spark plug socket, 5/8-inch thin-wall spark plug socket, flathead screwdriver, torque wrench. Parts Required: Spark plugs, Ignitions coils. Performance Gain: Engine runs well. Complementary Modification: Change air filter at same time. In this video, I show you how to replace the spark plugs and coil packs on my 2006 BMW 330xi (E90). My car has the N52 engine, but this process should be sim xn4I.