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Discussion Starter #1 (Edited)
So, my situation changed such that I'm street parking every day and not driving far enough for the car to get up to temp. I was looking for a beater, but stumbled into an M5 for a price that I couldn't say no to. So, this cars goal will be comfort, civility, and reliability... while still having sufficient driving dynamics to not make me want to put into a tree :confused3.

The S62 has enough torque to work better in the cold than the S54 (needs to be revved out) and I'm going to run the newly S62 (and S54/S65/S85) approved (by BMW) castrol edge professional 5w-30 in it in winter months for the constant cold cycling.

This is going to go quickly at first, as I'm copying/pasting posts from M3forum, and then slower, as you guys get stuck in real time.

The car:







Needs euro dash ASAP to regain the lost leg room!







forgot how awful MKIII/early software nav is! Will be getting MKIV and a custom OS shortly...

Project list currently to bring her up to DD spec:

Cooling system
replace breather system
diff/trans/oil
SSK removal and new shifter bushings
euro dash
oem bluetooth
MKIV retrofit
intravee
misc coding options
misc ecu changes
secondary air system delete
Beisan vanos fixes
timing chain guides/tensioner
diff mounts
clutch line (slight leak)
interior rear view fix (fluid about to dump)
get a snow wheel/tire setup
space saver spare/jack retrofit
X5 thrust arm bushings
replace missing underbody panels/bolts
replace center climate vent (cracked)

Car already has a stoptech front BBK (keeping) and tubi exhaust system (selling).
 

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Discussion Starter #2
Threw her up on the lift today to see what needed address. Some good news, some bad news.

Good news: full cooling system looks to be new!

Bad news: Lots of bushings, ball joints, and seals need replacing...

clutch line is leaking:



realized I need to get a wheel lock key from the PO



ball ball joint here



and here



didn't get a good pic, but all 3 diff mounts need replacing



one of the 6 exhaust hangers is failed



differential input shaft seal is leaking



another ball joint



and another (both on steering linkages)



missing body screw mount



and a missing nut



missing side skirt pin



and for some reason I took this picture. Can't remember what it was supposed to be of, for the life of me...



Was also blown away by how much space the non M audio takes up in the trunk (have previously only seen M audio cars).




Overall, a wash in what I need to do. Thought I would be doing the cooling system but I won't be. Thought the bushings/ball joints would be good, but they aren't.

Big old box of parts coming my way from thebmwpartsstore :parrot:
 

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Discussion Starter #3
Had a couple hours and made some slow progress on small things...

Pulled the mirror and sent it to radar mirror to get fixed (filling up with fluid)



Pulled out whatever used to be hardwired into the headliner. Also ordered a new V1 while will be hardwired, as well as a stealth one will be going up here.



And pulled some misc wires out that I don't know what their function was...





Pulled the CD changer and some sort of FM modular iPod system.



Hollowed out the CD changer and added some alpine components...



and reassembled...



The car is going to have two iPod, and will select the correct iPod based on which key is used to unlock it. That way my wife and I can each have our own seat/mirror/steering wheel/radio presets/climate control/ipod settings, and whoever gets the car will get all of the above automagically adjusted for them.

I left the nav out for now because I'm swapping to MKIV, so no point in putting the MKIII back in. Also changing the nav mounting bracket to the one that can hold the bluetooth module, as that'll be going in soon.

Also came upon this plug, which I've never seen before and looked unlike any BMW plug I've seen before!



Which turns out is pretty straight forward to turn into the standard BMW bluetooth plug...

 

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Discussion Starter #4
Today's micro update....

Discovered a mystery switch.



And more wiring to remove behind it. I believe this ends the aftermarket electronics delete (before I add my own) :roll:



Also discovered the car was too old to have a 6 pin connector for the cd changer/intravee, so ordered an adaptor that'll make one



Took some pics of the zhp knob/z3 shift lever, as I'm hoping to no cost trade it for stock and stock...



And pulled the evolve tune so sal could tweak things to my wants (car came with an evolve tune already on it/with cable)

 

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Discussion Starter #5
Picked up a stock muffler today (going to sell the Tubi that's on it).

AMAZINGLY huge. This pic is taken in a silverado (full size pickup) truck bed, which couldn't be closed with the exhaust in place!

 

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Discussion Starter #6
Boring update, MKIV acquired. :parrot:

Can't put it in yet because I'm waiting on the updated bracket with the bluetooth module mount. Ordering so many parts at once means they take a long time to come. :banghead:

 

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Discussion Starter #8 (Edited)
Installed the MKIV with the new bracket with TCU mount last night, as well as the intravee. No pics yet :(

Also compiled a list of things I'm going to code onto the car, though I'm open to additional suggestions:
fogs stay on with high beams
windows can be rolled up by holding lock
brake force display (brake lights strobe under ABS stops)
key used to unlock car chooses driver options
rear airbags turned on
Alternate hazard light pattern
increase DRL brightness
disable fog light bulb check (so it won't pulse them when I convert them to xenons)
add tcu to build order
auto lock at 15 mph
auto relock car if not touched within 2 min of unlocking
auto defrost when cold

Nav wise, going to add perspective view, night mode, and trapster database with audio warnings

And, using the intravee:
Automatic clock setting through GPS
mirror folding when holding lock on remote
data logging on how car is driven
tripple blink turn signals
recirculate on reverse, previous setting when removed from reverse
auto map zoom based on speed
diagnostic screen enabled

And through Evolve
top speed limiter remove
possibly lower the redline to 6800 since I'll be using 5w-30? Undecided on that.
Servotronic assistance adjustment
secondary air/carbon buildup system all deleted
Alpha N for AIT relocation
cold startup sequence disabled
dyno limiter off
sport button memory enabled
sport mode throttle response set to be the same as not sport mode
93 octane tune

That's all I can think of right now; I'm sure there will be more :p
 

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A lot of good stuff happening, Ian!
 

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Installed the MKIV with the new bracket with TCU mount last night, as well as the intravee. No pics yet :(

Also compiled a list of things I'm going to code onto the car, though I'm open to additional suggestions:
brake force display (brake lights strobe under ABS stops)

diagnostic screen enabled


That's all I can think of right now; I'm sure there will be more :p
I would be interested in how you're planning to and actual implementation of code the brake lights to strobe.

By the "Diagnostic screen is that the intravee or for emissions faults?
 

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Discussion Starter #13 (Edited)
I would be interested in how you're planning to and actual implementation of code the brake lights to strobe.

By the "Diagnostic screen is that the intravee or for emissions faults?
Diagnostic screen: the intravee log viewing screen, live

Brake force display, from here:

For an LCM.C19 module there are:
BFD_OPTION = aktiv / nicht-aktiv

There are also:
BFD_MINDEST_GESCHW - no options
BFD_STUFE_2_VERZOEG- no options
BFD_STUFE_2_MAX_EIN- no options
The cluster (mine is a KMBI_E38.C12) also has:
BRAKE_FORCE = aktiv / nicht-aktiv
BFD_AX_REF_SCHWELLE - BFD brakeforce threshold with 2 options
BFD_HYSTERESE - no options
BRAKE_FORCE_2 - aktiv / nicht_aktiv
BFD_AX_REF_SCHWELLE_2 - BFD brakeforce decel "threshold 2" with 2 options

I think we can confidently presume the base BFD is ABS and "2" is decel activated as w/ the E46.
 

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Pretty cool.

I'm liking this build thread. You seem very meticulous and I like that. Seems the car is in good hands.

Quick questions though... why remove the exhaust and go back to stock?!
 

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Very cool - congratulations!

One question - aren't you worried about not getting the S62 up to full warm on your drive as well? Maybe I'm just being paranoid, but I try not to drive the M5 anywhere that will not result in full operating temp, as I thought that may contribute to carbon build up. I do drive the M coupe (with S54) at times to destinations that don't result in full warm up as CBU does not seem to be a problem with that engine.

In any event, I'm enjoying your build!
 

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Discussion Starter #17
Very cool - congratulations!

One question - aren't you worried about not getting the S62 up to full warm on your drive as well? Maybe I'm just being paranoid, but I try not to drive the M5 anywhere that will not result in full operating temp, as I thought that may contribute to carbon build up. I do drive the M coupe (with S54) at times to destinations that don't result in full warm up as CBU does not seem to be a problem with that engine.

In any event, I'm enjoying your build!
I'm not concerned about carbon buildup because I'm nixing that system from my car completely.

I'm not driving the M3 for a couple reasons:
1) I'm the original owner of the M3 and I've never driven car I like better at any price point (and I've driven some nice stuff). I'll be keeping it till I crash or die. Above all other cars, it's the only I want to keep nice.
2) I'm going to run the S62 on 5w-30, which will let it better survive the cold weather than it would with 10w-60. The S54, imo, is much more in need of 10w-60 with its high (8200 rpm in my case) red line. I'm debating lowering this M5's redline to 6800 as I feel like 7000 may be too high even with 10w-60, and even more so if running 5w-30.
3) The S62 is much more capable at the low revs, where I'll be driving it when cold. The S54 needs revs to come into it's own.
4) The S54 is a much more stressed/exotic engine. The S54 is half of an improved maclaren F1 engine. The S62 is an improved M52. My S54 is making well over 100 wheel horsepower per liter-- the only factory car that matches that is the Ferrari 458.
 

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Discussion Starter #18
Pretty cool.

I'm liking this build thread. You seem very meticulous and I like that. Seems the car is in good hands.

Quick questions though... why remove the exhaust and go back to stock?!
Part of the budge calculation of getting this as a DD was parting the muffler out. Plus, if this car is going to be a comfort cruiser, quieter is better.
 
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