W211 e55 denso plugs?




The Best of Mercedes & AMG
8 years on original wires and plugs.I would change them out
Agree on the plugs; if the wires still measure the correct resistance, it's would be a complete waste of money to replace them. Simple ohm meter will give you the answers you need, but generally speaking, it's rare for plug wires to go bad.
If your going to bust your back for an hour prolly 2 hours on your first time i would do the wires since you take them off and would do the work again down the road.
You can find oem bosch set for under 200 online and its worth the piece of mind to just do them at the same time.





) so I did 2 orders °-° one in my name one my fiancés name I'm sure I could have done both in my name...
