E63 Spark plug repacement
#1
Super Member
Thread Starter
E63 Spark plug repacement
https://mbworld.org/how-tos/a/merced...k-plugs-387623
So I've read the article about spark plug replacement, it seems easy to follow. One unclear thing is exactly when to do this, some where between 60k-100K???
Mine is 07 E63 base at 65K, is it to soon for the spark plus replacement? How do you know when your need one? Thanks
So I've read the article about spark plug replacement, it seems easy to follow. One unclear thing is exactly when to do this, some where between 60k-100K???
Mine is 07 E63 base at 65K, is it to soon for the spark plus replacement? How do you know when your need one? Thanks
#2
Senior Member
I just did mine last week at 73,000 miles. I have a feeling mine were changed before I got the car at 59,000 miles. 2 Reasons:
1- some of the bolts seemed slightly stripped on the coils.
2- aside from 1 spark plug, all of them seemed in OK condition.
Getting the coil out on the right back side by the firewall is a PITA, there's a tube that is sorta in the way.
(these aren't my plugs)
most of my plugs were a little dirty, but they all had a decent arc on the top part.
Good luck
1- some of the bolts seemed slightly stripped on the coils.
2- aside from 1 spark plug, all of them seemed in OK condition.
Getting the coil out on the right back side by the firewall is a PITA, there's a tube that is sorta in the way.
(these aren't my plugs)
most of my plugs were a little dirty, but they all had a decent arc on the top part.
Good luck
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dustinN (07-05-2016)
#3
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2007 E63 w/P30 and Eurotech CF Diffuser
You read your manual and it tells you when to replace them. If you do not have your maintenance manual you can get one here.
https://www.mbusa.com/mercedes/servi...enance_manuals
The link you have in the first post, many of the photos were mine. I just changed mine for the third time right on schedule.
https://www.mbusa.com/mercedes/servi...enance_manuals
The link you have in the first post, many of the photos were mine. I just changed mine for the third time right on schedule.
#4
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2007 E63 w/P30 and Eurotech CF Diffuser
On thing to note about that 2007 maintenance manual.
It was the first year for the M156 and 722.9 transmission. Change the transmission fluid every 40K, not once at 40K.
Same with differential.
It was the first year for the M156 and 722.9 transmission. Change the transmission fluid every 40K, not once at 40K.
Same with differential.
#5
Super Member
Can you share what the recommended interval for both spark plug and diff fluid change are? I followed the link you shared and all I could find was a maintenance booklet, which has no useful information. Attaching the page where 50K is mentioned.
#6
Member
I pulled mine for headbolt replacement and found oil deposits on all of them. I have 32600 miles on the car. High crankcase pressure and lack of a catch can seems to be the issue. I tried to rig up a aftermarket catch can but the pressures gave me leaks. Maybe one day I'll be able to afford the $600 catch can, but not this year.
#7
Super Member
I pulled mine for headbolt replacement and found oil deposits on all of them. I have 32600 miles on the car. High crankcase pressure and lack of a catch can seems to be the issue. I tried to rig up a aftermarket catch can but the pressures gave me leaks. Maybe one day I'll be able to afford the $600 catch can, but not this year.
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#8
Member
I purchased the manuals, and watched Tasos's videos on youtube. I also messaged him 2 times to confirm a couple of things. I wasn't wearing my glasses and used the white line for timing the first time around, and after talking to him and watching a video again I saw the 40' mark. Cost me 2 more friction washers and a Saturday to get it right. It isn't rocket science, and I could probably do it in 6 hours if I had to do it again. If they are charging you more than 6 or 8 hours then I would find someone else. If you do it yourself and a helper you will need the cam timing tool, torque wrench to 90NM, and the parts. I will also mention the different head bolts, mine used a T50 and not a T60, and I am going to guess mine would be ok. They did have a little corrosion under the heads, but I suspect they would last. The T60 sized bolts have less material and are probably the ones failing. In the end its your rig, and you have to decide. My car has really low miles, and services done on time. If the car has had old coolant or regular water added I would replace them.
Good luck.;
Good luck.;
#9
Super Member
I purchased the manuals, and watched Tasos's videos on youtube. I also messaged him 2 times to confirm a couple of things. I wasn't wearing my glasses and used the white line for timing the first time around, and after talking to him and watching a video again I saw the 40' mark. Cost me 2 more friction washers and a Saturday to get it right. It isn't rocket science, and I could probably do it in 6 hours if I had to do it again. If they are charging you more than 6 or 8 hours then I would find someone else. If you do it yourself and a helper you will need the cam timing tool, torque wrench to 90NM, and the parts. I will also mention the different head bolts, mine used a T50 and not a T60, and I am going to guess mine would be ok. They did have a little corrosion under the heads, but I suspect they would last. The T60 sized bolts have less material and are probably the ones failing. In the end its your rig, and you have to decide. My car has really low miles, and services done on time. If the car has had old coolant or regular water added I would replace them.
Good luck.;
Good luck.;