spark plugs questions
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MBWorld Fanatic!
Joined: Jan 2007
Posts: 1,986
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From: Toronto
V12TT
spark plugs questions
I got 80,000KM on my 04 S500 with Service B in 10,000KM left.
I had them looked at by a mechanic he told me couple are so seized up don't think they're firing at all. Can this really happen, if so wouldn't it throw some codes?
I had them looked at by a mechanic he told me couple are so seized up don't think they're firing at all. Can this really happen, if so wouldn't it throw some codes?
MBWorld Fanatic!
Joined: Jan 2007
Posts: 1,152
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From: Sydney, Australia
190D 2.5 (x2), 190E 2.6, W202 C240,W202 C43 (C55), W210 E55, W212 E250CDI
The std spark plugs on these cars last pretty well with high mileage, they have a service life of 4yrs/120,000kms. I'd just replace them at your next service unless you are having any specific driving problems right now.
MBWorld Fanatic!
Joined: Dec 2004
Posts: 3,063
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From: Tampa, FL
2005 S500 4-Matic, 1978 450SL
You might try a good fuel system cleaner (they are usually more concentrated than fuel injector cleaners). I usually concentrate mine even more by using a full can with only 1/2 tank of gas. Run the car at fairly high rpm (4-5000 rpm) for a few miles of driving (use lower gears). That may clean your plugs.
Super Member
Joined: Jan 2008
Posts: 508
Likes: 1
From: california high desert
2003 S500, 03 C240, 03 E320, 03 tahoe
skylaw?
4000 to 5000 sustained rpm to clean $150 worth of worn out spark plugs? just replace the plugs and it will clean the combustion process up on it's own.dont use an additive and a $15,000 engine to clean the plugs!.no offense to skylaw,seems like everyone is trying to keep from spending money these days.
Super Member
Joined: Jan 2008
Posts: 508
Likes: 1
From: california high desert
2003 S500, 03 C240, 03 E320, 03 tahoe
they dont seize,they bridge
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MBWorld Fanatic!
Joined: Dec 2004
Posts: 3,063
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From: Tampa, FL
2005 S500 4-Matic, 1978 450SL
Some of those plugs aren't easy to reach.
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