E-Class (W211) 2003-2009

Change your spark plugs, guys.

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Old 06-12-2009, 07:11 AM
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03 E500 and Corvette
The multi-tip plugs are not recommended for the MB.
Old 06-12-2009, 03:52 PM
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X166 gls450 2017
ok, thats sad to hear

Vettdvr,
Can you confirm if I have the same spark plugs as an E500 would ? I was about to buy the ones you guys bought on autohausaz, but not sure if E350 would be the same as E500's

thanks
Old 06-12-2009, 04:07 PM
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03 E500 and Corvette
The 2006 E350 appears to have a different plug. What I found was YR7MPP33 but you should check your owners manual to confirm. It will be in the owners manual.
Old 06-13-2009, 10:13 AM
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what the heck -Bosch spark plugs for e350 are $9 .... same site has e500 ones for $4 ....

http://www.autohausaz.com/search/pro...umber=YR7MPP33

Last edited by 007_e350; 06-13-2009 at 12:39 PM.
Old 06-13-2009, 04:04 PM
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03 E500 and Corvette
Originally Posted by 007_e350
what the heck -Bosch spark plugs for e350 are $9 .... same site has e500 ones for $4 ....

http://www.autohausaz.com/search/pro...umber=YR7MPP33
I may be mistaken but I think the V6 in the E350 only has 1 plug / cylinder so you would only need 6 when the E500 V8 uses 16.
Old 10-10-2009, 07:05 PM
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2005 E500 4matic, 99 ML 430, 90 E300
The Bosch F8 DPP 332U that is the Bosch 7422 at autohausaz.com are on sale right now for $3.93 apiece. I have 16 on the way with free UPS ground shipping.
Old 10-12-2009, 04:32 PM
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bone stock E55 AMG
i shall do my plugs soon...
Old 10-13-2009, 09:15 PM
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2005 E500 4matic, 99 ML 430, 90 E300
I am doing mine on Thursday or Friday. The parts shipped Monday.
Old 10-14-2009, 10:07 AM
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03 E500 and Corvette
Originally Posted by LeviDenim
I am doing mine on Thursday or Friday. The parts shipped Monday.
Work slow, don't rush and you will do ok.

Twist the plug cap before you try to pull it off and it will be easier to remove.

A 17mm open end wrench to pry off the cap.

When you first break the plug loose don't try to pull it all out at one time. Break it loose then tighten is only slightly, then loosen and repeat each time comming a little more out. This breaks the tiny carbon chips in the threads and will prevent damage to the threads in the head.

I used plug neverseize but only a VERY tiny amount to ease installation and I also used dielectric grease on the plug cap.

Installation of the cap takes pressure to get it to "snap" on. If you press it as on a normal plug it may not fully seat. Be sure you fully seat the plug.

The plugs are pre gapped. You can check them but don't try to set them. If the setting is off replace the plug.

Best of luck.
Old 10-14-2009, 01:32 PM
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2005 E500 4matic, 99 ML 430, 90 E300
All great points.

I have done an ML 430 twice. Both times patience payed off.
Old 10-14-2009, 04:56 PM
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Eurocharged 2004 E500, Eurocharged ECU/TCU 2005 SL600, 2010 Caddy SwaggerWagon
Originally Posted by vettdvr
Work slow, don't rush and you will do ok.

Twist the plug cap before you try to pull it off and it will be easier to remove.

A 17mm open end wrench to pry off the cap.

When you first break the plug loose don't try to pull it all out at one time. Break it loose then tighten is only slightly, then loosen and repeat each time comming a little more out. This breaks the tiny carbon chips in the threads and will prevent damage to the threads in the head.

I used plug neverseize but only a VERY tiny amount to ease installation and I also used dielectric grease on the plug cap.

Installation of the cap takes pressure to get it to "snap" on. If you press it as on a normal plug it may not fully seat. Be sure you fully seat the plug.

The plugs are pre gapped. You can check them but don't try to set them. If the setting is off replace the plug.

Best of luck.
The word "pressure" is an understatement. Maybe I'm just weak, but I had to summon every bit of might I had on some of those buggers.
Old 10-14-2009, 05:06 PM
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03 E500 and Corvette
Originally Posted by Benz-O-Rama
The word "pressure" is an understatement. Maybe I'm just weak, but I had to summon every bit of might I had on some of those buggers.
l!...

For some of mine I had to use two hands and press in confined space with all I had to get it back on. Even then I wasn't sure they were fully seated. But after 10,000 miles of driving all is well.
Old 10-14-2009, 09:03 PM
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2005 E500 4matic, 99 ML 430, 90 E300
Hmmmm, I did it with one hand while I was sipping coffee and reading the newspaper.
Old 10-15-2009, 12:35 PM
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Eurocharged 2004 E500, Eurocharged ECU/TCU 2005 SL600, 2010 Caddy SwaggerWagon
Originally Posted by LeviDenim
Hmmmm, I did it with one hand while I was sipping coffee and reading the newspaper.
Ahhhhhhhh, this must be you then.

Old 10-15-2009, 03:58 PM
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03 E500 and Corvette
QUOTE=Benz-O-Rama;3764982]Ahhhhhhhh, this must be you then.

[/QUOTE]

Exactly what I was thinking but didn't write it!

[
Old 10-16-2009, 01:32 AM
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2005 E500 4matic, 99 ML 430, 90 E300
I really need to lay off the steroids for awhile.
Old 01-07-2010, 11:48 PM
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7422 is the same plug for the 320, checked my manual for the C320.
Old 01-08-2010, 03:20 PM
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S550, E320 Sport Wagon and A170CDI :)
Originally Posted by Kar don
7422 is the same plug for the 320, checked my manual for the C320.
I am gonna change my plugs soon (73K) but I am affraid about wires? I found just one info that if you don't have misfire, then you don't need to change them? is it true?

After I changed plugs in my last car - 99 Jetta - my car wasn't running smooth, and I had to change all wires and my mechanic told me that everytime you change plus, you need new wires...

how it is with E320?

thanks
Hubi
Old 01-08-2010, 04:13 PM
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03 E500 and Corvette
Originally Posted by Hubi
I am gonna change my plugs soon (73K) but I am affraid about wires? I found just one info that if you don't have misfire, then you don't need to change them? is it true?

After I changed plugs in my last car - 99 Jetta - my car wasn't running smooth, and I had to change all wires and my mechanic told me that everytime you change plus, you need new wires...

how it is with E320?

thanks
Hubi
I changed my plugs at 80,000 and kept the oem wires. However prior to removing the wire I twisted it to break it loose and used a 17MM wrench to carefully get the boot off the plug. If you pull the wire or force you could damage a wire. But have no fear if you break one you can buy just one.
Old 01-24-2010, 09:47 PM
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2021 Tesla M3SR+, 2017 GLS550, 2011 E350 Bluetec, 2007 GL450 (GONE), 2003 E500 (GONE)
Vettdrv,

Thank you for the write up. My car is getting close to 80K miles on it and I am getting ready for changing spark plugs over the next weekend. Quick question regarding lifting up the car on jack stands. Do you have to lift it to change all 16 plugs? Or did you lift it to look for the dropped tool? Could you please explain? This is going to be my first time plug change.

Thank you.
Old 01-25-2010, 07:42 AM
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03 E500 and Corvette
Originally Posted by MB500
Vettdrv,

Thank you for the write up. My car is getting close to 80K miles on it and I am getting ready for changing spark plugs over the next weekend. Quick question regarding lifting up the car on jack stands. Do you have to lift it to change all 16 plugs? Or did you lift it to look for the dropped tool? Could you please explain? This is going to be my first time plug change.

Thank you.
I did not lift the car to change plugs. I left it on all 4 wheels.

I lost a torq tool about 1" long. For this I had to jack it, pull the lower pan and look with mirror and lights. I never found it and it has been a non issue so hopefully it is resting in some non critical area. It might have even vibrated out after the 10,000 or so miles of driving.

My reco,, don't drop anything under the hood.

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