My 2001 E430 (V8) has 120k and I'm getting ready to change the spark plugs (2nd time) and I'm wondering if I should go ahead and change out the plug wires. Are they a "wear" item on this car? What's the recommended mileage to change the wires?

Not generally a 'wear item'. There is a specification for the resistance of each wire. If you have a good DMM you could test them. Most people would only replace a bad one since they are pretty expensive.

__________________
Good luck.






1998 E320 Wagon

I will replace at 200,000. they still look and feel new.All cylinders firing even

__________________
1999 w140, quit voting to old, and to old to fight, a god damned veteran, deutschland deutschland uber alles uber alles in der welt