Just thought I'd add a tip to this thread: If you do do this without jacking up the car, keep in mind as you go to jack up the engine that the frame still has the springs pushing it up ... so the frame will go up with the engine until the wheels start coming up and relieving the springs. Then the engine will go up by itself. I didn't have much trouble getting all the bolts out with the car on all fours on the ground. But I was puzzled when the frame followed the engine up. Duh.

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1987 300D, arctic white/palomino--314,000 miles
1978 240D 4-speed, Euro Delivery, light ivory/bamboo--370,000 miles
2005 Jeep Liberty CRD Limited, light khaki/slate--140,000 miles
2018 Chevy Cruze diesel, 6-speed manual, satin steel metallic/kalahari--19,000 miles
1982 Peugeot 505 diesel, 4-speed manual, blue/blue, 130,000 miles
1995 S320, black/parchment--34,000 miles (Dad's car)