i have a gearshift selector,EIS switch.gateway,set of clocks -reading 42,000 miles,and a virgin 9.7 motronic engine management computer,all coded to the same car(except engine ecu) -believed to be a sl600 write off.if you have multiple issues with your r230 as i did,then you have a complete replacement coded set of units which all work.please contact me for further details and price.it is no good purchasing any of these units second hand as they will be worthless -once they are coded they cannot be recoded.regards michael.