>> B << VALVE SPRING RETAINER LOCK INSTALLATION
In the same manner as removal, use special tool MD998772 (with special tools MB992090 and MB992089 attached) to compress the valve spring, and install the valve spring retainer lock.
In the same manner as removal, use special tool MD998772 (with special tools MB992090 and MB992089 attached) to compress the valve spring, and install the valve spring retainer lock.