Spark Plugs when did you change yours?????????? - Benzworld.org

jmarenas · 09-09-2005, 11:26 AM

I changed mine at 70k, and I now have 170k, might be due now :) NO rough idle issues at all.

John_L · 09-09-2005, 11:25 PM

Which plugs did you used at 70K? Are you happy with them?

Mine are coming due.

jpdp.au · 09-10-2005, 07:32 AM

Wow, I have just changed mine at 60000km. Apparently they had already been changed.
I do mainly city driving.
Also had to change the fuel filter, it was nearly blocked.
Rough idle has improved, but not perfect.
Economy has improved by about 10%

AC_ML · 09-10-2005, 07:55 AM

I just changed mine at around 108,000 miles. When I removed them, they still look and worked pretty good, and there were no traces of binding whatsoever.

At first, I did not noticed any change, but with time I have really noticed an improvement on highway mileage and a bit on the performance/pickup. I do 1-2 miles better than before on the highway and noticed a better mileage per tank.

The change in mileage and performance was not immediately noticiable. It was a gradual process. I guess maybe the ML has to learn the new combustion response and optimize it's advance/timing response..?

I installed dual tipped Bosh Platinum's and am very satisfied with them..

AC

skyking · 09-11-2005, 06:12 PM

I changed the plugs in my '01 ML320 at 88K miles with Bosch pure platinum plugs (dosch #F8 DPP332).