Quote:
Originally Posted by Bimmertech113
They are covered under mantinence if they are worn out and your CBS says its due. They are not covered if your injectors are crap and fouled the plugs
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Correct me if I'm wrong but I believe spark plugs are not a CBS item. That is why most SA/Dealers try to refuse to change them at 45k. On the 335i that is when they are due however, and they are covered under both the original and extended maintenance programs.
OP fight the dealer to change the plugs. They are wrong. However, injectors are not considered maintenance items.