Today I installed new spark plugs into my E39 525iA. The following is a quick tutorial on how to do the same to your E39!
Objective: Replace the spark plugs in your vehicle, helping it run better and more effeciently.
Applicable Vehicles: 1996-2003 BMW E39 5-series with 6 cylinder engines: 520i, 523i, 525i, 528i, 530i.
Parts Required: 6 OEM, Bosch, or NGK (What I used) spark plugs.
Tools Required:
10mm socket
Various socket extensions
Spark plug deep well socket
Flat-head screwdriver
Cost: ~$100
Difficulty: Easy-moderate
Time Required: 1 Hour
Procedure: To see how to do this for yourself, watch the embedded video below!