So, I called my local dealer to schedule an oil change and he tells me that I am due for a 55k mile service to the tune of about $700 USD. I read through most of the items listed and 75% of them could be done by me. Do the spark plugs really get replaced at ONLY 55,000 miles? Starting to feel like this is a money pit rather than a premium vehicle. I also own a 2005 Mercedes that has only cost that much to maintain TOTAL over the past 5 years!