Injectors are extremely easy to replace. If you do it yourself, you can get them from ********AZ for 26 bucks each. If you let your indie do it, the parts will cost goodness knows how much! But don't let them charge more than 2 hours labor -- it'll probably take half that!

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'01 SLK320, '79 450SL & '01 C320 -- What? 3 Mercedes? I am DEFINITELY crazy!!!