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New Platinum Spark Plugs

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New Platinum Spark Plugs

 
Old 04-29-2011, 08:45 PM
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ML 350-Black=Sold. New 08 C300 4Matic, Black/Black, P1, Ipod, Auto7speed, 10/10 hit 100,000 miles
New Platinum Spark Plugs

I have 117,000 and needed new plugs. Deal charged $300. US, only because did an oil change so the labor was less. He originally quoted $375.
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Old 05-02-2011, 11:45 AM
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Originally Posted by ShoremNJ View Post
I have 117,000 and needed new plugs. Deal charged $300. US, only because did an oil change so the labor was less. He originally quoted $375.
Well, good to have that done. Do you feel a difference?

I'm very interested in your opinion. At 117,000 miles, have you had any issues with your W204?
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Old 05-02-2011, 11:52 AM
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ML 350-Black=Sold. New 08 C300 4Matic, Black/Black, P1, Ipod, Auto7speed, 10/10 hit 100,000 miles
I do feel it is running smoother and better gas mileage on my first highway trip. The car has been good, only last month the ignition switch failed and had to be replaced for $750.00 USD. Other than that, only normal maintenance tires at 65,000 brake pads at 90,000.
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Old 05-02-2011, 12:05 PM
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Wow, original pads lasted 90,000 miles, and tires 65,000? Must have been a ton of highway miles?
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Old 05-02-2011, 07:21 PM
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ML 350-Black=Sold. New 08 C300 4Matic, Black/Black, P1, Ipod, Auto7speed, 10/10 hit 100,000 miles
90% highway driving and I use the cruise control for braking also.
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Old 05-02-2011, 09:59 PM
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2008 C300 Sport 4matic
what kind of spark plugs did they install?

I had Beru Ultra X Titan installed on my last car and I really liked it. Beru is used in many German cars, but upgrading to the Ultra X Titan platinums was a nice change.
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Old 05-03-2011, 07:21 AM
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ML 350-Black=Sold. New 08 C300 4Matic, Black/Black, P1, Ipod, Auto7speed, 10/10 hit 100,000 miles
I really don't know, the dealer did it.
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Old 05-03-2011, 09:00 AM
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Originally Posted by aowhaus View Post
what kind of spark plugs did they install?

had Beru Ultra X Titan installed on my last car and I really liked it. Beru is used in many German cars, but upgrading to the Ultra X Titan platinums was a nice change.
+1

Bosch, Beru, and NGK platinums are all good choices, dealers tend to use the last, but the Bs are preferred.

Don't waste money on the super multiple electrode plugs they usually are not the right plug for the job.

Tip
If you have breather hoses replace those and inspect the VC gaskets for leaks. Take your time!
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Old 05-04-2011, 11:06 AM
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I am curious: Can you change the sprk plugs at home or this is something th stealership has to do? Does the same applies for the brake pads? Please reply at your earliest convenience. Thanks.
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Old 05-04-2011, 05:06 PM
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Originally Posted by lfilomeno View Post
I am curious: Can you change the sprk plugs at home or this is something th stealership has to do? Does the same applies for the brake pads? Please reply at your earliest convenience. Thanks.
It is possible to change spark plugs by yourself - but usually not the easiest task and should be left to the dealers unless you are mechanicall inclined and know a bit about how cars "work". If there is a DIY you can do it, but still not easy.

However, brake pads are VERY easy to change, as rotors, and almost anyone can replace it themselves, and the DIY listed in this forum makes that even easier.
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Old 05-04-2011, 09:24 PM
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Originally Posted by jctevere View Post
It is possible to change spark plugs by yourself - but usually not the easiest task and should be left to the dealers unless you are mechanicall inclined and know a bit about how cars "work". If there is a DIY you can do it, but still not easy.

However, brake pads are VERY easy to change, as rotors, and almost anyone can replace it themselves, and the DIY listed in this forum makes that even easier.
Is there something that makes the spark plugs hard on this car? Honestly, it seems easier than brakes just for the sake of not jacking the car up. I have done spark plugs many times, but not on a Mercedes.

I would say though...one should make sure they tighten everything back to the exactly right torque.
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Old 05-04-2011, 10:47 PM
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W204 Color: 090 / 1999 Honda Civic EX / 2003 Acura TL
yea i would like to know what our stock plugs are
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Old 05-05-2011, 12:51 AM
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Originally Posted by Spec_Davis View Post
yea i would like to know what our stock plugs are
I believe the owners manual narrows it down to 2 models of spark plugs. It might even narrow it down to 1, depending on the engine.
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Old 05-05-2011, 03:54 AM
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Originally Posted by jctevere View Post
It is possible to change spark plugs by yourself - but usually not the easiest task and should be left to the dealers unless you are mechanicall inclined and know a bit about how cars "work". If there is a DIY you can do it, but still not easy.

However, brake pads are VERY easy to change, as rotors, and almost anyone can replace it themselves, and the DIY listed in this forum makes that even easier.

spark plugs are super easy if comparing it to changing the brake pads... if you can do brake pads you definitely can do the spark plugs...

it's basically popping off the engine covers and then take off the coil packs then unscrew the plugs.. reverse to install..

plugs available i searched on ecstuning and came up with these...

http://www.ecstuning.com/Mercedes_Be...ugs/ES2011980/

http://www.ecstuning.com/Mercedes_Be...ugs/ES2006432/

Last edited by Imageboi; 05-05-2011 at 03:58 AM.
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Old 05-05-2011, 09:09 AM
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Originally Posted by Imageboi View Post
spark plugs are super easy if comparing it to changing the brake pads... if you can do brake pads you definitely can do the spark plugs...

it's basically popping off the engine covers and then take off the coil packs then unscrew the plugs.. reverse to install..

plugs available i searched on ecstuning and came up with these...

http://www.ecstuning.com/Mercedes_Be...ugs/ES2011980/

http://www.ecstuning.com/Mercedes_Be...ugs/ES2006432/
Thanks for your reponses guys. Will search the forum for DIY guides on Brake pads changes and Spark plugs.
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Old 05-05-2011, 12:30 PM
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I don't think that there is a DIY for spark plug replacement yet for w204 models. Which is why I said it might not be the easiest for someone to do with little to no experience.

It isn't "impossible" but you probably need special mercedes tools as the w203 (previous c-class needed). I am unsure on procedure for the w204 but for w203 you had to remove the MAF and air box housing, to get to the spark plugs. Hopefully in this redesign they are simply right under the cover as suggested and are an easy fix. But whoever does change them, please make a DIY!
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Old 05-05-2011, 12:57 PM
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Also if you plug the spark plug numbers from the owners manual into Amazon, I think they normally have one of them in stock with free shipping.

I would suspect that changing the plugs on a W203 that had the 2.5 liter, 3.0 liter, or 3.5 liter M272 V6 would be nearly the same than the W204 with the same engines.

Some of those repair books for the W203 might even be helpful, if it includes the M272 that was used in the generation's later years.

Last edited by mac911; 05-05-2011 at 01:00 PM.
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Old 05-05-2011, 07:33 PM
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i wonder what the stock spark plugs are that last that long.. cause most platinum and iridium plugs are 50k to 75k or wonder if it's just our engines are that much easier on sparkplugs to make them last that long...

also i read on someone elses thread that did change them and they said it was torx that held on the coilpacks... what special tool are your referring to cause i'm not familiar with the w203 models.. if anything i mite just change my sparkplugs at 50k and see if i notice a difference and for a better piece of mind as far as gas consumption goes...


Also look on the ecu removal thread in the guides and see it's torx right there https://mbworld.org/forums/c-class-w...oval-pics.html

Last edited by ImageX; 05-05-2011 at 07:40 PM.
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Old 05-05-2011, 11:10 PM
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Spark plugs are easy to install if they are easily accessible.

I can also vouch for ECS Tuning, I have bought from them many times for my Audi/VW and they sell excellent products and have great customer service. Unfortunately, there is not many products available for our C on their site.
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Old 02-16-2012, 02:38 PM
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So has anyone successfully changed their spark plugs yet? I'm looking for a DIY that can tell me things like do the plugs come pre-gapped or do you have to gap them. If you do what's the gauge? What's the correct torque setting or is just tight enough tight enough? I never used to use a torque wrench on my older cars I just tightened them by hand and then gave it a couple of gentle turns to tighten them good. I used an anti-size compound on the threads, do you still need to do that? Are there once (towards the back maybe) that are hard to get to? Special wrenches? I know the torx for taking off the coil packs, got that covered.
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Old 02-16-2012, 03:21 PM
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Hand tight plus a 1/4 additional turn is usually the guideline but look it up just to be sure. Use a piece of rubber hose about 12" long with enough diameter to insert the coil end of the plug into it to avoid cross threading into the aluminum block. Anti seize is always a great idea especially when connecting two different metal types. Always heck the gap of new plugs even if they say that they are pre-gapped. I don't know the person who built them so why wouldnt I.
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Old 03-20-2012, 03:34 PM
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I found this diy spark plug video on youtube which explains and show exactly how to remove and change the spark plugs on the current w204 mercedes. Please watch the video as it explains the procedure on two cars, if you wanna watch only w204 fast forward to the min 5:59 ok. Enjoy

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Old 03-20-2012, 07:54 PM
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what were the part numbers for the ngk and beru and the bosch you guys used??
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Old 03-20-2012, 09:31 PM
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Old 03-21-2012, 08:33 AM
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Originally Posted by ShoremNJ View Post
I have 117,000 and needed new plugs.
On a side note, 117k for 5yrs is impressive...getting the most out of the girl.
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