MY NEIGHBOR DROVE MY 300 TO THE STORE AND BACK AND IT'S NEVER RUN AGAIN. THE MECHANIC TOLD ME THE ENGINE WAS OVERHEATED AND SHE'S DEAD. WHAT HAPPENS WHEN A DEISEL GETS TOO HOT? IS THE HEAD SHOT OR PISTONS? IS WORTH REBUILDING OR SHOULD I GET ANOTHER MOTOR? HOW ABOUT A LATER TURBO?

I hate to say it but this is an open ended question...You will have to trust your mechanic. Any thing could be wrong with the engine.

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Benzmac:
ASE CERTIFIED MASTER AUTO TECHNICIAN
LEAD TECHNICIAN FOR 14 BAY FACILITY
MERCEDES SPECIALIST 8 YRS
PARTNER IN MERCEDESSHOP.COM