Lot 9184: 1995 Mercedes-Benz SL600

Great question! The 1995 SL600’s 722.3 4-speed automatic has several well-known issues to watch for:

Most Common Problems:

1. Valve body wear - causes harsh/delayed shifts (especially 2nd to 3rd) around 100-150k miles
2. Conductor plate failures - electrical faults trigger erratic shifting and warning lights
3. Vacuum modulator issues - failed modulator means harsh shifts and fluid in vacuum lines
4. Torque converter wear - at your car’s 123k miles, expect shuddering during lockup
5. Internal seal degradation - age-hardened seals cause pressure loss and cold-weather slipping
6. Shift linkage wear - worn bushings create loose gear selection feel

My recommendation - Have a Mercedes specialist inspect this car before purchase. They should scan for transmission codes and check if recent fluid/filter service was done.

Also, those hydraulic top cylinders mentioned in the listing FAQs are another known weak point on R129s.

Want me to help you find similar SL600s with service records, or do you have questions about any symptoms?