Crank Sensor defective again??

[BenzClk320]

2003 CLK 320 : Need technical assistance please! Was driving on highway (had driven roughly 100 miles) pulled off to exit and as soon as I parked the car, it fluttered and lost power. Only the battery light came on and off quickly. Waited a couple of minutes and was able to restart the car and drive about a 100 yards before it fluttered again and lost power completely. No lights came on this time. Had it towed to dealership. They can't figure out what the problem is. Now that car has cooled, it drives fine. Similar issue happened 2 years ago and dealership couldn't diagnose problem. Another repair shop replaced the Crank Sensor and car ran fine for 2 years and then this happened again. Dealer thinks it's the EIS...but that doesn't make sense! There is no problem turning the car on and off. Had them check the alternator, crank sensor, and battery. All is ok according to them. How quickly do these Crank Sensors wear out? Don't want to spend $1000 in repair unless sure what the problem is. Anyone have any knowledge of this or similar experience? Thinking about taking is somewhere else for further assessment.

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[Glyn M Ruck]

You have my answer. If it does it again pour cold water on the CPS. If it revives it you know. Probably another CPS.