Changing Plugs
 

Does anyone know the part number for the NGk iridium's plugs for 2001 X5 with a 3.0 I have 104K on them never change them out.

Thanks

Not to hijack your thread, but I was curious to see what plugs were available for my 2000 X5 4.4l, I used NGK's in my M3 and I found them on www.LandrParts.com, the most expensive one was $10.59, but I came across Pulstar, 2 for $49.90! Why are they expensive? Are they that great? Here is the write up....

Pulstar Spark Plug
2000-2007 BMW X5

"PULSTAR PULSE PLUGS, SET OF TWO -- 14 mm, 19 mm Reach, 5/8 Hex, Gasket, 0.045 Gap, The Latest In Performance Ignition Technology, Comes With An Internal Pulse Circuit That Increases Peak Spark Current By Up To 20,000 Times As Compared To A Traditional Spark Plug, Delivers Up To 1,000,000 Watts Of Peak Power, Allows More Efficient Burning Of Fuel, Generates A Much Larger Spark At Twice The Speed Than Ordinary Spark Plugs, Provides More Power And A Livelier Throttle Response, Promotes An Increased Gas Mileage And Greater Horsepower To The Wheels, With Manufacturer's Limited One-Year Warranty. Two Plugs Per Order"

i replaced mine with bosch platinum fusion part # 4503. i bought it from advance auto parts.

If you're looking for the very latest in spark plug technology, look no further than Bosch Platinum Ir Fusion™. Fusion features a patented, fused iridium and platinum center electrode, combined with exclusive surface air gap firing technology to produce a longer, more powerful spark. Its four yttrium-enhanced ground electrode design outperforms OE iridium plugs by significantly reducing gap wear. This means less stress on the ignition system for quicker starts, more efficient fuel combustion, and a longer performance life. In addition, Fusion's voltage requirement increases less over time versus other iridium plugs for longer reliable performance of the vehicle's ignition system.
Bosch Platinum Ir Fusion™-Features & Benefits of Fused iridium and platinum center electrode, sintered into an extended insulator nose. Reaches self-cleaning temperature only seconds after starting and provides exceptional wear resistance. Revolutionary surface air gap firing technology featuring Bosch's unique four ground electrode design. Delivers the most powerful spark for the most efficient combustion and optimum horsepower without increasing the voltage requirement. Four yttrium enhanced ground electrodes. Resists spark plug wear and oxidation for exceptional performance life. Factory pre-set gap. Ease of installation never requires adjustment.

Becuz pulstar plugs are plastma plugs

As of now I imagine my 2000 X5 has the original plugs, I am thinking of replacing them, but then again everything is working fine, I don't want to change them and get issues, but if I did what will be the biggest benefit, will the mpg improve, etc?

new plugs will give you better MPG .it burn cleaner and etc...

I changed the stock platinum plugs at 105k miles with the same. hopefully I'll never have to change them again.

Do you recall the condition of the plugs when you pulled them? I am still debating on wheher or not ot change them now, I would do it in hopes the mpg would improve some, I don't expect miracles though.

If you're at 100k miles. Change the plugs..trust me...I changed mine at 90k..NGK Iridiums...Made a noticeable difference..

they were somewhat worn. but it's harder to tell as compared to a copper plug. I don't recall mpg going up much if any after changing. factory schedule calls for plugs at 100k so I would definitely change them if I'm close to 100k.