2005 Mercedes-Benz CL65 AMG: Adding the Right Oil Is a Challenge
March 19, 2014
I was halfway into a 160-mile trip when I got a stern warning telling me to add 1 liter of oil to the 2005 Mercedes CL65 AMG. I knew that Mike Schmidt had added oil only 1,879 miles ago so I wasn't completely surprised. But checking the oil level and responding to this message wasn't easy.
There is no dipstick for this enormous power plant. Instead, you have to park it on level ground for five minutes and then check the oil via a special sensor. This time the display informed me that I needed to add 1.5 quarts, so the onboard computer converted from metric to the U.S. system.
Finding the right kind of oil was also an adventure and took me 15 minutes of gazing at racks of oil in an auto parts store and comparing the current oil descriptions to those in the owner's manual from nine years ago.
By the way, I came across this handy reference for choosing oil from Mobil.
With oil added, the stern warnings went away and I was able to begin enjoying the car rather than worrying about when the next problem would arise.
Philip Reed, Senior Consumer Advice Editor @ 60,924 miles