When to replace Spark Plug Wires 2003 E320 97k?
Should I replace spark plug wires on 2003 Mercedes E 320 97k as needed or when ever I change spark plugs?Has anyone only replaced spark plugs?I’ve had one Independent mechanic tell me to do wires & another tell me just the plugs.Would like to know before I shell out the extra $ for wires.Thanks and have a great day.