The M117's are pretty much bulletproof too. The lower end will easily cover 400K+ miles with typical upper end services between 200-250K, and the timing chain, rails and tensioner replacement. My 4.5 is 30+ years old and to the best of my knowledge is original to the car, no idea how many times the 5 digit odometer has gone 'round though. My 560 is at almost 200K and is just now in for valve stem seals and a camshaft replacement.

*hanging head in shame*, I had to ceed the job to a shop simply because I don't have the tools, nor place to DIY. I was difficult leaving it behind, but a quick tour of the shop and meeting the mechanics put me at ease.

__________________
Mike Tangas
'73 280SEL 4.5 (9/72)- RIP
Only 8,173 units built from 5/71 thru 11/72

'02 CLK320 Cabriolet - wifey's mid-life crisis

2012 VW Jetta Sportwagon TDI...at least its a diesel

Non illegitemae carborundum.