BMW Maintenance bait and switch We own a Z4 and a 335xi coupe. I recently brought the 335 in for a state inspection at the dealer at about 45,000 miles. I noted in the owners manual that the 335 is required to have the plugs changed at 45,000 miles. I mentioned this to the dealer and they indicated they did not think that was the case. I showed them the owners manual that called for the replacement and they indicated they would have to contact BMW North America. The feedback from BMW is that no change is needed unless the key fob calls for it. This is in direct contradiction with the manual that indicates the CBS system does not monitor the plugs. The dealer refused to make the change since they would not be paid. I called BMW NA and after a bit of a run around received a similar response. The feedback from the â€œKeyâ€ CBS system indicated that a plug change would be needed at 61,000 miles rather than the 45,000 in the manual effectively shifting a â€œmaintenanceâ€ cost from BMW to me. This with a premium brand. This premium brand leaves a bad taste in my mouth and their business practices smack of a low ball huckster rather than a high line automobile manufacturer. Do I enjoy the cars - yes. Am I willing to pay for maintenance of course. I have the oil changed approximately every 8,000 miles with several of the changes at my cost. A premium brand should act like one and not act like a low ball bait and switch dealer. Will I buy another one in the future? I am not sure.