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E46 M3 (2001-2006) Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006.


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Old Sun, Apr-16-2017, 03:58:10 PM   #1
zem
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Default Zem and the art of M3 Maintenance

Right - so at ~84k, the M is due for and Inspection 2, which of course means the Valve lash adjustment. Along with that, I wanted to do a few other things like:

-Oil change
-New coils and spark plugs
-New VANOS seals, plus o rings for the sealing plate.
-And a new air filter while I'm in there.

Overall, a simple enough job, if you are methodical and pay attention to what you're doing. The most PITA is all the plastic shrouds and the fan that you have to remove, after that it's cake.

Nice unmolested motor. Long way to go!


After the fan, shrouds, etc removed, you get to this point. Takes a while just to SEE the coils.



soon enough... nice clean valvetrain. Nice oil sheen over everything.



Wiseco shim kit, feeler gauge, along with a micrometer- you will need it as the marking wear off the old shims.



A tip for taking off the VANOS: To avoid the wrench dropping into the timing chain area, I tied them together. This way, if one goes for it, you can fish it out



Everything is in good shape, my tabs are intact:



I have the Beisan disc, which has been put in during the last service, 30k ago. Def. worth the money!



VANOS seals- this took awhile, just to get the new seals carefully on. Poor picture, sorry.



O-rings for the sealing plate:



New O-rings and filter:



And finally, plugs and coils. I used NGKs and the BOSCH coils (not pictured)



A few notes -

Put aside a day to do this. It takes a while.

Be really careful about keeping the area clean, and clear - you do not want to drop shims, or even small bolts/part anywhere in the engine area. The shims are easy to lose, just focus and do them one at a time.

That being said, the washer for the oil return line (on the side of the head), must have a strange magnetic attraction to the ground. I must of bumped it a few times, even though I left it on my bench, out of the way

It's a good idea to disconnect the battery while you do this.

Torque values - I used the PDF that is available here, mucho thanks to the writer for putting it together.

And finally, turning the motor- my car has the bolt on the crank pulley, so I was able to use a huge socket to turn it. The size you need is 32mm.
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Old Sun, Apr-16-2017, 04:19:11 PM   #2
E46 Mystic M3
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Default Re: Zem and the art of M3 Maintenance

Also for SMG guys make sure the car is in neutral before you disconnect the battery! You wont be able to rotate the engine in gear for the valve adjustment.
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Old Sun, Apr-16-2017, 04:37:20 PM   #3
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Default Re: Zem and the art of M3 Maintenance

I spit on my shirt sleeve and rubbed bird poo off my hood earlier, so same thing.
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Old Mon, Apr-17-2017, 04:15:31 PM   #4
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Default Re: Zem and the art of M3 Maintenance

Quote:
Originally Posted by mrfuzzybagels View Post
I spit on my shirt sleeve and rubbed bird poo off my hood earlier, so same thing.
write up DIY?





OP nice bit of maint all at once with no issues. props to you haha
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Old Tue, Apr-18-2017, 03:18:20 AM   #5
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Default Re: Zem and the art of M3 Maintenance

Nicely done.

Special props for the thread title which to me is as impressive as the work,
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Old Tue, Apr-18-2017, 04:00:09 AM   #6
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Default Re: Zem and the art of M3 Maintenance

Did you have to do any timing adjustments when changing the vanos seals (TDC, locking pin)? Were the seals flat compared to new?
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Old Tue, Apr-18-2017, 11:42:26 AM   #7
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Default Re: Zem and the art of M3 Maintenance

Great idea tying the wrenches together!
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Old Tue, Apr-18-2017, 12:57:42 PM   #8
zem
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Default Re: Zem and the art of M3 Maintenance

Thanks everyone - I figured that the wrenches were most likely to fall in there, so tying them was good insurance.

I didn't end up using any timing tools - I never took off the splined shafts, so the timing wasn't disturbed. Obviously I made sure to line up the tabs with the Oil pump disk when assembling. The old seals were the original ones for all I know, so they were well worn in, pretty flat. I noticed the VANOS pistons are a bit harder to move in/out, partly because of the seals and partly because the assembly was dry. I put a bit of oil in them afterward.

oh, and

Quote:
Originally Posted by Jazzkat View Post
Nicely done.

Special props for the thread title which to me is as impressive as the work,
hehe, I figured some will appreciate it .
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Old Tue, Apr-18-2017, 03:02:06 PM   #9
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Default Re: Zem and the art of M3 Maintenance

Looking good and props on DIY.
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Old Wed, Apr-19-2017, 04:55:04 PM   #10
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Default Re: Zem and the art of M3 Maintenance

Very clean! Great work keeping everything tip top.
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Discussing Zem and the art of M3 Maintenance in the E46 M3 (2001-2006) Forum - Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006. at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)