engine rotor seal mb 0501 337 683UPDATE! The part is currently out of production and is only available as part of full repair kits. We are currently looking for a new supplier to manufacture this part. Solve the Common EQC Issue Save Time, Money & Headaches! If you own an MB EQC, you're likely aware of a very common and frustrating issue: leaking seals and worn rotor bearings in the drive unit. This leads to leaks, increased drivetrain noise, and in some cases, full motor failure if