I'm coming up on my 100,000 mile service and I know a change of spark plugs will be in order.

What is the consensus on brand? Who makes the OEMs? Is there really a difference between one over the other?

It's been years since I've had to worry about plugs, since I hardly service my own vehicle any more. Just curious if there is something I should know. Thanks.

 

I'd go with OEM plugs NGK or Bosch.

 

+1 I just changed mine and went with the NGK OEM Plugs.

 

Mine just turned 67k and I just ordered the OEM Bosch (that was the part in my car). I believe the realOEM site pulls up both NGK and Bosch spark plugs for the same part #.

 

I put Autolite Iridium with the NASCAR logo in mine. $6.99 at Autozone. They run great!

 

I changed my valve cover gasket and put new Autolite double platinum plugs in,, and when I said that in another forum,. people there spazzed out because I didn't use NGK... extremely touchy and anal BMW people... why people so damned touchy, what do they care?? anyways,,, it's running great.... I removed the other plugs because I went through so much trouble to replace the laky valve cover gasket , it was a good time to replace the 4 electrode NGK plugs, that I had no clue how many mile were on because I bought the car used, a few months ago. It was running really good, but now I know they are new.

2001 BMW 530i (I-6).

 

only replace with whats in there, either NGK or Bosch.

too many horror stories over the years

 

You can put whatever spark plug [in your car] your heart desires...

 

My '04 530i is about to hit its 100K marker too... it's been blinking at me for weeks. I bought these off Amazon:
For $36, using the right tools, the DIY, and a free afternoon, you can't go wrong with Bosch! I was able to reset the iDrive and visit the local DQ without any problems. I know the tools cost a fortune, but I'm happy to never be under the thumb of a dealership and their $400+ invoices again.

 

What tools are you referring to? I am planning on doing my 545i plugs soon.