Mercedez C220 wont spark and the car doesnt start what may be the problem

That would require a detailed procedure so its carried out properly
u can get a manual for help..
I keep getting those for vehicles too.. I know a lot of websites and which one is best for what type of vehicle.
and some are just useless, no customer relationship management..

Usually the engine will run poorly, your fuel consumption will be higher than normal and if they are really bad you might get misfiring on the engine. Changing them isn't difficult and the plugs don't cost a lot. Old filters can also give similar symptoms.
If your worried I would suggest you give the car a major service. This covers all the filters, (fuel, air, oil), fresh oil and a full set of spark plugs.

Does it have spark? Does it have fuel pressure?

You are either not getting fuel or the crankshaft position sensor has failed. on some mercedes the fuel pump will not run if the computer does not see rpm. so the easiest and cheapest attempt to repair is replacing the crankshaft position sensor. it is located at the back of the engine near the transmission bell housing.

Not sure what you mean plug spark plug if thats missing it will run like rubbish and wont accelerate starting would also be an issue where have you driven it from

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check spark, fuel, compression

From front of car looking toward windshield,

cylinder closest to radiator is #1 increasing to # 4 closest to windshield.

Looking at ignition coil from front of car toward windshield, going clockwise

starting at bottom left is #1. top left #2, top right #3, bottom right #4

absolutely,well spotted.sometimes it takes hours of "fun"to find the culprit.

Crank position sensor, roughly about £50 from mercedes.
jib
www.mercanic.co.uk