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I've marked the pictures with certain colors as to what tool you will use.
Pic 1
Pic 2
Pic 3 - All you have to do is remove the Intake for the left side spark plugs.
Pic 4
Pic 5
after you remove that there should be connectors attached to the spark plug tubes. remove those. each tube has a 10mm bolt holding it down. remove that. then use your extension and spark plug socket to remove your spark plugs.
hope this helps!
sorry in pic 5 it says look at pic 4 for reference but it's actually pic number 1. pic 4 was the file name :X
this took me about an hour and a half cause I didn't really know what to do at all. and that 12mm bolt behind the manifold is a BEEEECH
I have about 67k miles on my car. My OEM stock Denso plugs were still pretty good. so those who debate on changing them at 60k or 100k.. they will last till a 100k np IMO. I just like to change stuff out early to make the car last just like how I change my oil every 3k with synthetic when it's not necessary and can last till 5k. lol
Anyone know how to change spark plugs for 220D, "08??
If you stripped any of the Allen bolts, hammer a 3/8 socket on to it and wrench it off.
***Go to home depot and buy M6-1.0x30mm bolts to replace the stock allen bolts.
^This will help you out very much in replacing the spark plugs.
After an hour of frustration (and multiple cussing sprees directed at an inanimate object) I stumbled upon this post of yours. Can't thank you enough. I had tried everything to get this bolt out (the recessed one in the middle of the intake) and as soon as I hammered that 3/8 socket over it came right out. Thanks again.
After an hour of frustration (and multiple cussing sprees directed at an inanimate object) I stumbled upon this post of yours. Can't thank you enough. I had tried everything to get this bolt out (the recessed one in the middle of the intake) and as soon as I hammered that 3/8 socket over it came right out. Thanks again.
Coming up on 160K miles, Replaced the first set at 60K, since they still looked good I waited for 100K this time. From my experience working on older cars, one would usually replace the spark plug wires too when replacing spark plugs. I don't see needing to replace the spark plug harness that my IS250 has, but has anyone had any issues where the harness needed to be replace or are they just that well made that they will last the life of the car? Glad to see this thread is still here.
On the other write up it says "I will suggest to do it one plug at a time. Also, remember the order of wiring connectors. This is very important." What does this mean??>?
I'm going to embark on the DIY in the next 3-4 weeks. I have the parts and tools all set. I have done a DIY on a Toyota Camry the other day and i must admit it was easy. Doing it on a 250 and reading that you HAVE TO remove the manifold i'm abit concerned. But it got to be done!
I notice when doing the Camry the oem Denso plugs unscrew with abit of resistance (makes a screeching noise with every turn). It isn't that bad but when the plugs comes out it's all brown (not rust but brown). The car's done just under 63,000 miles. Would the brown on the thread be due to no anti-seize apply from factory? If so i would put anti-seize on when i do the 250 (but only a slight amount)
Btw, the plug socket i have is magnetic and clings onto the plug so there is no fear of drop it on the way up (or down).
I'm going to embark on the DIY in the next 3-4 weeks. I have the parts and tools all set. I have done a DIY on a Toyota Camry the other day and i must admit it was easy. Doing it on a 250 and reading that you HAVE TO remove the manifold i'm abit concerned. But it got to be done!
I notice when doing the Camry the oem Denso plugs unscrew with abit of resistance (makes a screeching noise with every turn). It isn't that bad but when the plugs comes out it's all brown (not rust but brown). The car's done just under 63,000 miles. Would the brown on the thread be due to no anti-seize apply from factory? If so i would put anti-seize on when i do the 250 (but only a slight amount)
Btw, the plug socket i have is magnetic and clings onto the plug so there is no fear of drop it on the way up (or down).
Get a nut driver big enough with a hole that the Allen wrench can fit in. Use this a a leverage tool. Also make sure the Allen wrench sits in the hex bolts good. Sometimes there is dirt that accumulates inside. So if you don't seat it correctly it could cause the bolt to strip. The fuel line one is a little tricky it took my awhile to get it off, and the one bolt at the back of the manifold.
Anyone have a list of part numbers for all gaskets that should be changed out during this service?
Yes I need this as well! Some time ago there was a Dealer that sold everything as a kit through this forum, I'm not finding that info now.
Please Help! (also need other parts)
02-17-15, 07:36 PM
Anyone know how to change spark plugs for 220D, "08??
just like how I change my oil every 3k with synthetic when it's not necessary and can last till 5k. lol
Wish I Saw This Earlier
