Mercedes ESL Steering Lock Emulator Service | W204 W207 W212 GLKProfessional cloning service for your faulty ESL, which transfers data to a used, good unit. Backed by 12 Month Warranty This is a Repair service. You MUST send us your faulty ESL and a working key You are not purchasing a replacement unit. This listing is a professional emulator repair service for your faulty Mercedes Benz ESL. You MUST send us your old faulty ESL and a working key to properly repair the unit. Common Symptoms If you are experiencing