All U.S. Model 107 SL's up to 1980 are affected. This recall is still honored by Mercedes-Benz.
What is it: The subframe underneath the front end of the car can and may develop a crack that could cause the car to malfunction and cause injury.
How is it repaired? If the subframe has developed a crack the entire subframe will be replaced by Mercedes. If it has not cracked yet then a support will be welded in place to prevent the crack from occuring.
How to determine if your SL has had the repair done: Take your car to the nearest Mercedes Benz dealer and have them check the MBnet using your vehicles' VIN number. Ask about SIL 33/001 Subframe Modification dated 11/1/85.
How much does it cost? The entire repair is covered fully under the recall. The only item not covered is the rubber subframe mounts (about $40).