Vin Decoder (http://old.mbclub.ru/mb/vin/?lng=eng)
EPC online (http://epc.startekinfo.com/epc/) (available at NC, although registration is required)
Online Parts Catalogs (http://www.detali.ru/cat/oem_mb.asp)
The NASA guide to home wheel-scuff repair (http://www.bmwtips.com/tipsntricks/wheel-repair/wheel-scuff-repair.htm)
Zenith Carburetor Manual (http://jaimekop.com/CarbManual/index.html)
W116 Factory Repair Manual (http://handbook.w116.org)
Gold Book Classic Car Price Guide (http://www.manheimgold.com/car_lo.html)
Merceds-Benz Option Codes (http://www.geocities.com/MotorCity/Speedway/5350/mbcodes.htm)
Specifications of Mercedes-Benz Cars (http://www.carfolio.com/specifications/models/?man=3932)
Mercedes-Benz Wheel Guide (http://mountainmarketingwv.com/Pics/MBZPNUM.htm)