There's no way to get around it - the CL is going to need more attention and cost more to run than a FSHed Lexus. There's a reason why Toyota/Lexus have done so well on the big satisfaction surveys.
But if you've just got to have an MB coupe, bargain hard to save a little money and use that to buy an older GS300 for use when the CL is poorly.
But if you've just got to have an MB coupe, bargain hard to save a little money and use that to buy an older GS300 for use when the CL is poorly.