How often do you change the plugs on 2002 Mercedes-Benz S500

Just bought the S500 (MB) with 88,000 miles. Mechanic told me to replace plugs and cables. Did not notice any issues when driving.$790.00

by in Vancouver, WA on May 19, 2013
2 answers
ANSWER by , May 19, 2013
When you can tell it needds it! May have been done already, any misfire or run rough?
ANSWER by , May 20, 2013
DO YOU HAVE ANY SERV RECORDS WITH CAR. IF YOU TRUST YOUR MECH DO REC, THATS WHAT U HAVE HIM FOR