Thanks for the info guys. I believe the motor is damaged. the KBB stated around 40K for trade in minus the cost of motor damage I figure 19.9K is a fair number. I've read many forums and never hear of this v12 blowing up. Does anyone repair them or do we have to go for used? and my location is Pa.
I own an 05 CL65. Trade in value in good condition is $26K. Dealer retail is $32K. There are two on ebay claiming to be in perfect condition for $29K - and no takers.
Sorry for the bad news. If the motor is gone it likely what you have is a collection of parts if you care to disassemble it. It is sad how the values have fallen thru the floor - though that allowed me to buy mine from an Audi dealer in Georgia who had put new tires on it, it Renntech R3 upgraded and the only problem was frontal road rash as the 1-owner apparently drove down a few gravel roads and didn't have a bra on the front. I paid $28K and the dealer glad to take it having it up for sale for weeks on Auto Traders - told me they had lookers but no takers. I offered cash. They took it.
As for the motor, it isn't a question of whether it is "blown." It is a question of whether it ran oil-dry even just a couple of seconds. If so, the bearings and rings are shot. I don't even want to think of the cost and complexity of a rebuild. There are used 65 motors that come up on Ebay for around $12K-ish used. A new motor is for sale out of the Neatherlands for around $35K if I remember correctly. So if a person bought that used $12K motor and it still a good motor and the buyer managed to do the work himself (figure adding at least a $1K or more for whatevers), he'd have $33K in it after 100 hours work - when he could buy a near pristine one for $29K right now on Ebay.
Personally, I think the W215 CL65 are the ultimate GT2+2 hyper performance luxury coupe bargain. But parts and maintenance costs scare the heck out of people. These aren't working class folks cars even at super low used car prices. Another person on this forum is asking where to sell his - and he spent $19K on work on it just last year at a dealer. Such is the nature of these cars. The used parts, however, sell high for obvious reason. You have a car of very little value, but a costly collection of parts if you have the time and a year to sell it in pieces.
When I bought this CL65, the dealer offered a 3rd party major drivetrain warranty for 2 years. For that, I made the deal. Why? I even commented at the time that "if the motor blows the car is totaled."
I wish you the best with it and it is sad to see another of the 194 total W215 CL65s probably biting the dust. I wonder how many are really still on the road. I read somewhere an estimate of just over 100. Likely nearly all rare-occasions garage babies like mine is being treated now.