The best way is to have it serviced and they will reset it for you. That light came on because your vehicle isn't running properly and a trouble code got stored in the controll module. A mechanic will hook up his analyser and read the code. This alone will clear the code and the light will go out, but you still have to fix the problem or the light will come back on within minutes.
You need what is called a "Service indicator reset dongle" it is a very small computer that does all the programming for you. Your local Land Rover Dealer will have one and I'm sure they will be happy to help you, normally without charging you too.
unfortunately this is not possible without service workshop dignostic software
Hold the reset button
You will need a reset tool to reset the service indicator on the Mercedes e240. You will reset the indicator by using the buttons on the dash.
Inside panel passenger side under dash by door.
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how do you reset the service indicator on a 07 vauxhall combo van
disconnect the battery for 10 mins or turn the ignition switch back and fourth with the key in it
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you have to take to a rover dealer to put out the service light
reset service engine light