How much in MA to change ignition coil,spark plugs, engine belts?

How much it will cost in MA

to change ignition coil %26amp; spark plugs, engine belts,Oil filter and airbag check as indictor showing up %26quot; red ' on board ( for BMW 328)?

thanks.How much in MA to change ignition coil,spark plugs, engine belts?
You can do it yourself in about 3 hours.How much in MA to change ignition coil,spark plugs, engine belts?
changing the parts will cost you about $300

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