Iridium Spark Plug, 90919-01247, 90919-A1002

fit for BMW, OEM: LFR6AIX-11 - 6619

2006-2007 BMW 525i

2006-2007 BMW 530xi

2007-2009 BMW X3

2007-2009 BMW X5

2006-2009 BMW Z4

How often should spark plugs be replaced?

A common question for many vehicle owners is "When should I change my spark plugs?"

Well, not all spark plugs are rated for 100,000 miles. In fact, some car makers recommend replacement at 30,000-mile intervals.

So always follow the spark plug service intervals shown in your owner’s manual to figure out when to replace spark plugs.

If you can’t remember when you last changed your spark plugs, you can pull them and check the gap and their condition.

Project step-by-step

Step 1: Remove extras and clean your work area: Blow away the crud

Step 2: Remove the ignition coil and/or boot

Step 3: Unscrew the plug

Step 4: Gap the plugs

Step 5: Install the new plug: Use the proper amount of torque

Step 6: Lube the spark plug boot and button it up