We had a CL600 at my shop recently, it had some sort of oil leak, the oil got into a transmission controller unit and fried it...I want say it cost $6500 to change the controller out, largely due to the unbelievable labor involoved in getting to it. At $112/hr it doesn't take long to run up a big bill.

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2002 Ford ZX2
2 x 2013 Honda Civics