Can the plugs be replaced without removing valve covers?

[Dr. Strangelove]

Just did the valves, coming on 24k and want to replace the plugs. Will they come out with intact valve covers?
Thanks

John

[David R]

yes

[Dr. Strangelove]

thanks
are there any aftermarket plugs, eg, autolite that work just fine?

[deilenberger]

I've opted to stay with the NKG plugs that BMW specs. While there are crossover plugs listed for that plug, it's the same plug my BMW M-Coupe (S54 engine) uses, so I could almost buy them in bulk. Dealer price was $15 - 15% (0pen-House discount) this past Saturday which is about as good as I could find them on line. I feel every 32k miles is a good change interval for them (and the alternator belt.) I'm doing my 64k service this week.

[Steve H.]

On 2012 cam heads ther is no alternative for spark plugs.At least I could not find any alternatives.Only one is NGK MAR8B-JDS.I am fare from spark plugs replacement,but I am allready searching for parts,to enshure to have tham when I need it.Don Eilenberg's syndrome?? Yes!!I like that way of thinking!!I shold not be confused when Ineed them.

[Dr. Strangelove]

well, there may not be much of an alternative. Other than Denso I find no other alts.

There are two NGKs it appears that can be used: a single pole and a double pole. there is some anecdotal reporting that the single poles "perform better."

I ordered those from amazon for $9+ per.
On another note I've had good luck in the past with non OEM parts in general, but in this case it appears going OEM is the most practical course.