Originally posted by CuCullin
Theres occasionally a slight shudder when in drive, but stopped for bit, idling. Would this be consistent with one of those part specifically?
I really can't say.
If you feel a vibration, or slight shudder, when idling, it would suggest worn out motor mounts.
My best guess on the poor starting issue would be fuel pump check valve, anyway.
2001 E430, Bourdeaux Red, Oyster interior.
1973 280SE 4.5, 170,000 miles. 568 Signal Red, Black MB Tex. "The Red Baron".