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Old 10-22-2010, 02:47 AM
E55AMG2 E55AMG2 is offline
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Quote:
Originally Posted by FSETH View Post
Until recently, the dealers gave me an option of Bosch or NGK. I preferred Bosch from past experience, but was going to give the NGK's a shot. When I called one local dealer for a quote, they said NGK's were out as a dealer supplied part and that Bosch was the sole plug used. That is just what one dealer told me. I have not tried any other dealers in my area, but the fact that the NGK plug's part number has recently changed makes me think the dealer was telling the truth.
The ETK still lists the NGK BKR6EQUP (12 12 9 071 003) as the correct plug. Might want to speak to your dealer about that. My guess is that they have a bunch of old stock they need to unload. I would get NGKs no matter what.

Also, both plugs claim 100k intervals but I would change them every 30-50k.
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