If the car is like the 123, Mercedes likes to follow the same methods in their cars. You cannot remove the LCA mounting bolt, which is eccentric. without removeing the coil springs.. the eccentric bolt is the attachment and pivot point for the LCA. The other attachment point is the steering knuckle, which is attached to both the LCA and the UCA. If you release either one of these attachemnt points with the spring attached. The spring will force the LCA out with tremendous force. You need to remove the coil spring to replace the LCA bushings and nut/bolt assemble.

Dave

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1970 220D, owned 1980-1990
1980 240D, owned 1990-1992
1982 300TD, owned 1992-1993
1986 300SDL, owned 1993-2004
1999 E300, owned 1999-2003
1982 300TD, 213,880mi, owned since Nov 18, 1991- Aug 4, 2010 SOLD
1988 560SL, 100,000mi, owned since 1995
1965 Mustang Fastback Mileage Unknown(My sons)
1983 240D, 176,000mi (My daughers) owned since 2004
2007 Honda Accord EX-L I4 auto, the new daily driver
1985 300D 264,000mi Son's new daily driver.(sold)
2008 Hyundai Tiberon. Daughters new car