My friends 99 C280 sport cranks but wont start.
All dash lights work, but there is no check engine light on.
Fuel tank has plenty.
I don't even know how to check for spark on this modern car. I'm thinking the two things to check are fuel and spark.
One wild guess was fuel pump and when he turns the key to 2 position, there isn't that telltale buzz.
Question, is where is the fuel pump, how long does it buzz in the 2 position and how loud is it?
Thanks for the help, he's stuck right now so any quick response is great.
Is there some simple test we can do out here to check for fuel?

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63 220S W111
76 300D W115
2013 VW JSW TDI M6

previously-
73 280 SEL 4.5
86 300E 5 speed
2010 VW Jetta TDI M6