Spark Plugs -Resistor or non Resistor
Thread Starter
Newbie
Joined: Jul 2015
Posts: 6
Likes: 0
2006 Mercedes C230 Sport Coupe V6
Spark Plugs -Resistor or non Resistor
Just replaced the plugs on my 2006 C230 V6 coupe with Bosh YR7MPP33 which are resistor plugs and marked "double Platinum R6". The plugs I removed were Y7MPP33 which are non resistor are marked "platinum R1". The car seems to run no worse then before. Should I be concerned?
ALSO my car has approx 109,000 km or 67,000 miles and the plugs removed were the original since new. The old plugs show absolutely no visible wear other then a grayish tint and have no carbon or any other deposits. Would I be better off to re-gap them and re-install replacing the new resistor plugs??
ALSO my car has approx 109,000 km or 67,000 miles and the plugs removed were the original since new. The old plugs show absolutely no visible wear other then a grayish tint and have no carbon or any other deposits. Would I be better off to re-gap them and re-install replacing the new resistor plugs??
Last edited by Canadian-driver; Jul 13, 2015 at 04:20 PM.
Newbie
Joined: Dec 2014
Posts: 6
Likes: 0
From: So. California
2015 C250 Coupe
Just replaced the plugs on my 2006 C230 V6 coupe with Bosh YR7MPP33 which are resistor plugs and marked "double Platinum R6". The plugs I removed were Y7MPP33 which are non resistor are marked "platinum R1". The car seems to run no worse then before. Should I be concerned?
ALSO my car has approx 109,000 km or 67,000 miles and the plugs removed were the original since new. The old plugs show absolutely no visible wear other then a grayish tint and have no carbon or any other deposits. Would I be better off to re-gap them and re-install replacing the new resistor plugs??
ALSO my car has approx 109,000 km or 67,000 miles and the plugs removed were the original since new. The old plugs show absolutely no visible wear other then a grayish tint and have no carbon or any other deposits. Would I be better off to re-gap them and re-install replacing the new resistor plugs??
Coil over plug ignition don't require resistor plugs as you don't have high tension cables to transmit spark noise.
