Step 1 - Preparation. Locate your spark plugs under the bonnet using your owner’s manual. They will usually be either on the top or side of the engine. Before attempting any work, remove any loose dirt and debris from around the spark plugs, and remove any obstacles that prevent access to the spark plugs.
they will charge you £90 to assess the car. Now whatever comes on, they will have to write to BMW office in UK to seek the advice. Once they tell you the fault, and if it turns out to be coils and plugs, they will only replace the faulty parts. As your car is out of warranty, you may have to contribute.
Faulty spark plugs will lead to misfire codes and therefore reduce your engine performance as your vehicle requires the spark to make power. Replace your faulty plugs today and restore those lost power on your BMW with B38, B46, B48 and B58 engines. We highly recommend replacing all spark plugs at the same time.
Spark plugs come in all different shapes and sizes and have a variety of electrode designs and tip compositions. The correct spark plug for a BMW 3 Series is determined by which plug delivers the best fuel efficiency, transference of heat and final drive. The cost to replace spark plugs can vary greatly depending on the BMW 3 Series and if