There are no major restrictions after surgery. In the early time after your surgery (1-2 weeks), be sure to chew your food well. Avoid spicy or adventuresome foods until your intestines are functioning more regularly.
Here you will find scans of the original wiring diagram for the 1971, 1972, and 1973 Datsun 1200. 1971 Datsun 1200 Wiring Diagram. 1972 Datsun 1200 Wiring Diagram. 1973 Datsun 1200 Wiring Diagram.
Turn the ignition off and then start the engine to verify the indicator has been reset. This procedure should be work on latest generation of Mercedes-Benz Sprinter Van (2011, 2012, 2013, 2014, 2015, 2016) models. Hopefully the article of 2011-2016 Mercedes-Benz Sprinter Van Oil Service Light Reset usefull for you.