3 weeks ago my C220 was serviced, including oil change & oil filter. Nothing out of the ordinary was found at the time. 2 days ago the car broke down when being driven at low speed, with a screeching noise, severe loss of power and firm brake pedal. There were no warning lights and there was no increase in operating temperature. The car was recovered by low loader to the garage that did the service. They stripped the vacuum pump and found it had little or no oil in it. Suspecting an oil pump problem they checked the oil filter. This had evidence of oil passing through but there was no debris found. They briefly cranked with the oil filter housing removed and no oil came through. They suspect failure of the oil pump and/or the oil pump drive system and advise probable major damage to engine / turbo / vacuum pump but say that the only way to confirm extent of damage would be a complete strip-down & rebuild which would cost thousands. Alternatives are to replace the engine with new / reconditioned / engine from crashed car with non-engine damage; again at a cost of thousands. Are these really the only options? Do Mercedes really build & sell cars with no oil pressure sensors to alert the driver to oil pump failure?