The CTA Tools Benz Oil Level Dipstick, No. 8824, is used to accurately measure engine oil level and to check the length of the oil dipstick guide pipe. This tool is designed to work on a wide range of Mercedes Benz engines including M112, M113, M271, M272, M646, M647, M648, and M651 models. With the 8824, technicians can check the oil level without needing to start the engine. The dipstick is 36.6" long.