NHTSA Campaign Id 93V067000; Date: Apr. 28, 1993
Lack of sufficient brake power assist will increasestopping distance and could result in a vehicle accident.
1990 Mercedes Benz 500SL; 1991 Mercedes Benz 500SL; 1992 Mercedes Benz 500SL
Component: Service Brakes, Hydraulic:power Assist
Manufactured by: Mercedes-benz Usa, Inc.
Affected Units:: 14,300
During the removal and installation of the air filter housing while servicing the vehicle, it is possible to misroute the preformed vacuum hose and damage the check valve in the vacuum hose. If the check valve is damaged, loss of sufficient brake power assist will occur.
Replace the preformed vacuum hose with a newly designed preformed hose with a relocated check valve which will eliminate the possibility of the check valve being damaged.
System: brakes. Vehicle description: passenger cars.
Date Owners notified by Manufacturer: May 14, 1993
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