I have a new model CLK320 (2002) with 6210 telephone built into the armrest & Comand. No Parktronic or Linguatronic.
I am reasonably able to 'fix/sort' things. I live in Edgware / NW London.
1. Upgrading to 6310i. Local Stealership is quoting about £400 to upgrade an 'amplifier'. Thought...