hi. unless i haven't done an adequate search on the forum, is there a way to find out part numbers without removing the part? to put it simply, i am looking to replace my diesel injectors. i know my engine number and chassis number, and i dont have the tool to remove an injector until my friend gets back from his holiday, i just need to know what injectors go into my R reg E class 300TD. i have tried to find this info out on the internet to no avail, so i guess it was time i turned to you guys. i need the part number to match up with some injectors i have seen for sale. many thanks.