Mercedes EIS Repair Leeds or York

[beecrop2]

Hi, does anyone know where I can get an EIS/ESL issue diagnosed and repaired in Leeds or York? when I turn the key nothing happens, no lights in dash, just dead. I may be have to try 2-3 times then it starts OK as it should. Reading other forums I suspect a faulty EIS or ESL. Can anyone recommend a repair place preferably in Leeds or York? I have a ML300 W164 (2011).
Regards Paul