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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 Thu, Dec-07-2017, 01:00:50 PM   #31
Mr.Sono
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Default Re: DIY: E46 M3 detailed rod bearing replacement and front suspension refreshment

wow, great diy.
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Old Thu, Dec-07-2017, 02:09:32 PM   #32
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Default Re: DIY: E46 M3 detailed rod bearing replacement and front suspension refreshment

This is a DIY.
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Old Tue, Mar-13-2018, 04:43:17 PM   #33
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Default Re: DIY: E46 M3 detailed rod bearing replacement and front suspension refreshment

would you guys say this is more difficult than doing a vanos overhaul?
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Old Tue, Mar-13-2018, 05:43:48 PM   #34
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Default Re: DIY: E46 M3 detailed rod bearing replacement and front suspension refreshment

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would you guys say this is more difficult than doing a vanos overhaul?
Not at all, just finished doing my rod bearing and mine is the newer model with this crazy torque procedure, its just time consuming and lot of things to disposable. Overall it not bad
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Old Tue, Mar-13-2018, 05:52:53 PM   #35
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Default Re: DIY: E46 M3 detailed rod bearing replacement and front suspension refreshment

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Originally Posted by den_bart View Post
would you guys say this is more difficult than doing a vanos overhaul?
They are very different, I'll try to provide a summary, you assess.

Vanos is technically challenging (if you are doing the full bullet-proofing), but once you understand how it all works together, it is "simple" (subjective, obviously). Fewer parts to take off to get to it, you get to work from the top of the car. If you are just doing seals in sealing plate and pistons in the vanos unit, it's very quick and simple. If you are doing the full "bullet-proofing" with cam bolts, chain tensioner, upper chain guide, it's a bit more complicated and you need a timing tool. Do not do valve adjustment while doing vanos, do one first, then the other, order of which one you do first doesn't matter, but don't do them concurrently .

Bearings are a different beast. You work from the bottom of the car a lot. That said, there is plenty to do from the top like take off the power steering pump (it hides a few oil pan bolts, so has to come off). There are a lot more opportunities of "while I'm in there" with bearings job, like power steering hoses, new ps pump, engine mounts, steering guibo, control arms, tie rods, new tensioner pulleys, driving belts, swaybar endlinks and bushings. Obviously new rod bearings and oil pan gasket, but you might need new rod bolts if your car is post 12/31/2002. Check some of the seals on oil pump pickup lines, new oil pump (maybe?). Need to get a lot of power steering banjo bolt washers, new ps fluid. Upgrade the oil return line, if you have the older (non-metal) version. You have to drop the subframe, so you need a way to hold up the engine (with engine bar?). A lot more things to keep track of here, but it's not difficult.
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Last edited by mrgizmo04; Tue, Mar-13-2018 at 05:59:47 PM.
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Old Fri, Mar-16-2018, 06:10:53 PM   #36
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Default Re: DIY: E46 M3 detailed rod bearing replacement and front suspension refreshment

Im not sure if it was mentioned. I didn't see it anyways.

Are OEM bolts installed dry or oiled? I know ARP use lube
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Old Mon, Mar-19-2018, 06:10:50 PM   #37
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Default Re: DIY: E46 M3 detailed rod bearing replacement and front suspension refreshment

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Im not sure if it was mentioned. I didn't see it anyways.

Are OEM bolts installed dry or oiled? I know ARP use lube
Dry. You place the lube/oil on the bearings.
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Old Mon, Mar-19-2018, 08:04:14 PM   #38
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Default Re: DIY: E46 M3 S54 detailed rod bearing replacement and front suspension refreshment

Guys is snap-on Techangle Torque will be a good tool for that crazy later s54 bolts tightening?
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Old Mon, Mar-19-2018, 08:18:27 PM   #39
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Default Re: DIY: E46 M3 S54 detailed rod bearing replacement and front suspension refreshment

You don't need any special tools for that. If you have some spatial awareness, you start the handle at 12 o'clock, you end at 3 o'clock, that is 90 degrees. Nothing else special about angle torque. You can get it for peace of mind, but don't need it.

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Old Mon, Mar-19-2018, 08:23:35 PM   #40
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Default Re: DIY: E46 M3 detailed rod bearing replacement and front suspension refreshment

The Snap-On digital torque wrench is one of the coolest tools that I have, and it definitely comes in handy for the rod bolt tightening sequence. Yes, you can wing it, and you can also do it the old-fashioned way with an analog torque angle meter. I've done it all three ways on different cars, and it's much much easier with more peace of mind with a good digital torque angle meter.

If you're doing the job with the engine on a stand, where you can stand up and orient yourself with your tools in a nice open space, you can be just as accurate with an analog meter and you probably don't need the extra digital help. But if you're lying on your back, with barely enough wiggle room to get the angle you need, and you've already wasted your arms on the initial torque settings, the audible/visible/tactile feedback from the digital wrench will make this job almost enjoyable.
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Discussing DIY: E46 M3 detailed rod bearing replacement and front suspension refreshment 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)