P0304 error spark plug servicing
I have a 2005 MG ZT and had an engine error message P0304 which is misfire on cylinder 4. I think it's a faulty spark plug but my garage would not do a spark plug replacement in a full service as they said it's too awkward to get to the plugs on this MG ZT.
Is that the case with this vehicle, should I try another garage and would it be expensive?
Any advice would be helpful. Thanks!
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