Suspension 6.9 Hydraulic Suspension Diagnosis and Repair Here is what you have to deal with when owning this brute
Engine Securing Rubber Exhaust System Hangers (Donuts) They can fall off especially if your exhaust system is sagging or not mounted properly
$475.00 W123, W115, Early R107, Early W126 Right Rear Trailing Arm - USED Removed from 83 300D with 220k miles. No salt corrosion. Very clean with cable and newer emergency brake. FITS W123 chassis 240D 300D 300CD 300TD 280E 280CE and W126 380SE 380SEL 500SE 300SD UP TO 1985 ONLY!!! also fits W115 and R107 to 1985.
Driveline and rear end Diagnosing and Repairing Common 114 115 107 116 123 and 126 Rear End Problems The Differentials are very rugged. It is the associated parts that usually fail due to age and high mileage
$78.50 Early 201 Front Strut - made by Meyle Fits 190E 2.3 and 2.6 and 190D 2.2 from 1984-1986 and from 1988 to 1993
$24.50 114 115 123 Axle Bolt and Spacer Set for Can Style Axles ( Used ) Fits 1974 to 1985 240D 300D 300CD and 300TD
$29.95 126 Chassis Front Stabilizer Bar Rubber Mounts x 2 Fits all 126 Sedans and SEC coupes from 1981 to 1991
$107.00 123 126 201 124 129 Chassis New Steering Shaft Coupling Fits above chassis models from 1977 to 1993