M-Class (W163) Produced 1998-2005: ML 230, ML 320, ML 350, ML 400 CDI, ML 430, ML 500, ML 270 CDI

ML500 engine rebuild / re-seal

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Old Sep 27, 2023 | 01:34 PM
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2004 W211 e55 amg / 2003 w163 ml500
ML500 engine rebuild / re-seal

Hello MBworld , here is my 2003 w163 ML500 engine known as the legendary “ M113 “ .
it seems the critical timing case O-rings have failed over the last 20 years or 170,000 miles . While the engine is out I’m still going to remove the cylinder heads to have them checked & possibly machined because I want to complete re-seal the engine with all new head gasket kit / timing cover gasket kit ( I believe one of the kits includes valve seals & front & rear main engine seal also ) all purchased from FCPeuro , among a few other parts like a thermostat / ignition coils & spark plugs / timing chain kit Ect… of course some other new sensors such as knock sensors / cam & crankshaft sensors / coolant temp sensor . I’m going to clean everything correctly with a 20gal parts washer even let some soak over to remove the carbon & oil , speaking of oil . The oil pump will be cleaned & a new chain will be purchased for it before it’s re-installed , milkshake oil is no joke. I’m a one man show & this is my first ever removal - disassemble - clean - reassemble- reinstall of an engine , it took me 3 days on/off working a few hours at a time with hand tools to remove the engine & get it on the stand ready to be worked on .I took my time & labeled everything along the way also . Anyway stay tuned for next update! Thanks 🙏











Last edited by bigkermw211e55; Sep 28, 2023 at 09:07 PM.
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