BMW M3 Forum
BMW M3 Forum BMW M3 Gallery BMW M3 Reviews BMW M3 Social Groups BMW M3 Chat M3Forum Sponsors >>
Loading


Mobile M3forum
Go Back   BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X) > BMW M3 Discussions > E46 M3 (2001-2006)
Tire Rack Buy Winter Tires Now!
Not a member? Register Now!
Register Gallery All Albums Garage Search Today's Posts Mark Forums Read Calendar FAQ

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.


Reply
 
Thread Tools Display Modes
Old Tue, May-21-2019, 06:08:28 AM   #11
moezer
Registered User
 
moezer's Avatar
 
Join Date: Aug 2017
Age: 32
Posts: 207
Reputation: 0 moezer is on a distinguished road

United States




Default Re: SMG Pump Maintenance/Troubleshooting: Complete Guide

Can there be an oil cooler added to the SMG hydro tank? I was thinking if the issue is from very hot oil wouldnt a smaller oil cooler work?

Sent from my SM-N950W using Tapatalk
Jump to top moezer is offline   Reply With Quote
Sponsored Links
Register now and remove these ads
Old Tue, May-21-2019, 10:36:37 AM   #12
bosundave
Registered User
 
Join Date: Jun 2008
Posts: 1,350
Reputation: 0 bosundave is on a distinguished road
Location: Fort Lauderdale

United States




Default Re: SMG Pump Maintenance/Troubleshooting: Complete Guide

I love my SMG so much. I don't know why all the hate. I use every single function that it has to offer.

I recently had the dinky 12V motor removed and inspected for bearing wear, commentator wear, and brushes wear.....all of it was fine.
Just a ton of dust from the brushes which was cleaned out.

I plan on buying the relocating kit to the Smugglers compartment from the member of our fourm that offers it.

I haven't been following things. Has that kit worked out pretty well for everyone?

I have my eye on Burkhart's proprietary fluid for the SMG. They claim it is thicker and allows the pump to cycle less. Everything runs cooler including the 12V motor

The fluid swap involves
getting hooked up to a computer and pumping out every last bit of Pentosin before this new fluid is added. Has anyone tried this?

As far as I can tell, this one is only available in Europe. You pay in Euros and pay to have it shipped to the USA.

It's a pricey undertaking but I don't have a problem with it if it is worthwhile.

Like I said, I love my SMG and daily drive my car. I want to treat my SMG the best I can. Loving this thread.
__________________
I wasn't speeding...I was QUALIFYING!

Agency Power muffler , Ebay midpipe, Magnaflow resonators BREMBO GT BBK, Endless Racing brake pads , TC Kline SA Coilover (front) Swift 448lb springs, BC Racing coilover rears (for now), TMS front(30mm) and rear(25m) adjustable anti sway bars, AKG FCABS, TMS limiters on AKG RTABs, and powerflex subframe bushings, HPF AND TMS weld in Subframe kit, 10 hours of additional subframe Stitch welding above and beyond what's usually called for, CF trim interior and exterior clear coated by my guy with heavy duty UV protection, Vorsteiner CF rear diffuser, Strassentech type CF lip, Aurora Angel Eyes, DRL,HID Fogs 6k, Headlights HID 6k, D-Force racing wheels sandblasted and powder-coated semi-gloss black, Square set up 265/35-18, built-in Passport Escort 9500CI .. custom mount of controls in ash tray, , rareQuatro CF shock tower brace, Pioneer Avic Z3, BSW stg 1speakers, BSW sub
Jump to top bosundave is offline   Reply With Quote
Old Tue, May-21-2019, 01:11:03 PM   #13
oceansize
Kwisatz Haderach
 
oceansize's Avatar
 
Join Date: Jan 2018
Posts: 655
In the garage:
Reputation: 0 oceansize is on a distinguished road
Location: TN

United States




Default Re: SMG Pump Maintenance/Troubleshooting: Complete Guide

Quote:
Originally Posted by bosundave View Post

As far as I can tell, this one is only available in Europe. You pay in Euros and pay to have it shipped to the USA.
BluntTech is a Burkhart USA based reseller but unfortunately doesn't appear to sell just the fluid.
__________________

2003 M3 Convertible SMG w/Hardtop | GC Coilovers and Camber Plates | ESS VT1-475 Gen 3 Supercharger | Stoptech Brakes
Apex ARC-8 19" Hypersilver | CSL SMG (and 255) Tune | RE Diablo Exhaust w/ SS Tips | RE Rasp Pipe
Redish Reinforcement Plates | Polyurethane Rear Subframe Bushings | Polyurethane Differential Bushings | Beisan Oil Pump Disk
Storm Motorwerks SMG Paddles | Two Tone Black/Grey Interior | Alcantara E-brake Boot
Very Recent Maintenance: FCABs | FCAs | RTABs | Motor Mounts | PS Hoses | Inner/Outer Tie Rods | End Links | Vanos Solenoid |
Driveshaft R&R | Flex Disc | Fan Clutch | Trans Fluid | Diff fluid
Jump to top oceansize is offline   Reply With Quote
Old Tue, May-21-2019, 04:09:07 PM   #14
ultimatemj
Registered User
 
Join Date: Dec 2008
Posts: 216
Reputation: 0 ultimatemj is on a distinguished road
Location: Chicagoland

United States




Default Re: SMG Pump Maintenance/Troubleshooting: Complete Guide

Thanks for the info!

Feels like this should be (in someway) merged with the SMG troubleshooting FAQ
__________________
2004 JB/Blk SMG | 2nd owner | Purchased Dec 2008 w/24k miles | Crossed over 100k mile Apr 2019
Key maintenance done @90k: Subframe reinforced | WPC Rod bearings | Beisan Vanos lockdown + chainguide
Refesh maintenance done: Suspension & Driveline rubber replaced | CSB | viton CPV | Coils + plugs+ O2s | Waterpump + Thermostat | Belts & pulleys
OE+ : Evolve airbox | Supersprint Exhaust | PE tune | CSL trunk | 18 VMR 710 w/PSS | EU OE 2pc Rotors | Koni+Dinan springs| Valentine1 w/StealthOne | Stereo build log
Jump to top ultimatemj is offline   Reply With Quote
Old Tue, May-21-2019, 05:39:20 PM   #15
E46M3ZCPILB
E46 M3 Fanatic
 
E46M3ZCPILB's Avatar
 
Join Date: Jun 2016
Age: 33
Posts: 56
In the garage:
Reputation: 0 E46M3ZCPILB is on a distinguished road
Location: Windsor, ON

Canada




Default Re: SMG Pump Maintenance/Troubleshooting: Complete Guide

I'd like to make a cluster gauge for my SMG fluid temperature and/or accumulator pressure. Anyone know what can BUS and message ID / signal to look for ? Do we have a .DBC for the E46 M3 ?

__________________
2006 M3 - Interlagos Blue on Black Nappa - SMG
Jump to top E46M3ZCPILB is offline   Reply With Quote
Old Tue, May-21-2019, 06:15:15 PM   #16
SMG cog light
Registered User
 
Join Date: Apr 2019
Posts: 231
In the garage:
Reputation: 0 SMG cog light is on a distinguished road

United States




Default Re: SMG Pump Maintenance/Troubleshooting: Complete Guide

BluntTech does sell the fluid. I messaged them and purchased the fluid last month.

The pentosin chf11s fluid will work just fine if your internal seals+accumulator are still good and pump in original location. (verified by live data pressure holding tests)

The burkhart fluid will help and make your fluid run a little cooler if your seals are worn. The best thing to do is replace worn internal seals, since everything else is just doing a band-aid fix. Since it is thicker it won't be as thin in higher temperatures. Thin fluid tends to leak between valve seals. However for this to work as intended, it is recommended that you fill the system with at least 90% of the burkhart fluid.

To achieve this, you would have to removed the pump body and flip it upside down to remove the old fluid inside the body reservoir. Suck out the old fluid in the reservoir with a turkey baster or gear fluid transfer pump. Remove most of the fluid inside the slave cylinder chamber by disconnecting the hydraulic line there. There is also a cylinder inside the gearbox actuator but since it may be hard to get to the hydraulic line there, it would not be necessary to remove that hydraulic line.

An oiler cooler can be fabricated and mounted in line with the pump but again this is band -aid fixing. The real problem is the oil should not even be overheating. If your oil is overheating, you have either a dead accumulator, worn internal seals, failing motor, or all 3. NOTE: Replacing one of the 3 above while having one worn item will still make the car seem to run better and not drop gears, but you can still have a hidden problem. If your pump motor is coming on more often than it should, it's because your pressure is not being held; you have an internal slow leak at high pressure and temp; or the commutator is very worn. Modifying the temp sensor with a resistor will make your pump die faster!

The only way to know for sure that your system is running as it should is to do a live data pressure decay test and see how long it takes before the motor comes on after the motor stops when it reaches max bar.

I would like to ask the community for help and make a new thread for pressure decay test readings only. This will help me collect data on different M3's with different mods. And everyone can post their pressure decay times in between priming.

Last edited by SMG cog light; Tue, May-21-2019 at 09:08:24 PM.
Jump to top SMG cog light is offline   Reply With Quote
Old Tue, May-21-2019, 06:27:07 PM   #17
chronos3333
Registered User
 
Join Date: Dec 2009
Posts: 73
Reputation: 0 chronos3333 is on a distinguished road

Canada




Default Re: SMG Pump Maintenance/Troubleshooting: Complete Guide

I did the Bukhart CSL SMG relocation along with their thicker fluid + CSL DME tune on my ZCP. Very happy with the result.
Had the cog light 2 times at the first startup of the day, the first 2 days after the conversion, no cog light since then.

I may be wrong but I think the OP forgot to mention the 2 detent spring at the back of the gearbox which can fail.
__________________

1986 E30 325ic - Diamant Shwartz Alpina prep -SOLD-
1999 E46 330D - Orient Blue/M Alcantara
2002 E46 M3 Coupe 6MT- Carbon Black/Black - Too many mods to list (4.10, etc...) - SOLD -
2002 E46 330xi - Steel Grey/Black - Hawk Race Brakes among other mods
2006 E46 M3 ZCP SMG- Titan Silver / Red
2009 E92 M3 DCT/EDC Le Mans Blue / Fox Red
Jump to top chronos3333 is offline   Reply With Quote
Old Tue, May-21-2019, 06:46:11 PM   #18
Distinct70
Registered User
 
Distinct70's Avatar
 
Join Date: Dec 2013
Posts: 477
Reputation: 0 Distinct70 is on a distinguished road

United States




Default Re: SMG Pump Maintenance/Troubleshooting: Complete Guide

Quote:
Originally Posted by chronos3333 View Post
I did the Bukhart CSL SMG relocation along with their thicker fluid + CSL DME tune on my ZCP. Very happy with the result.
Had the cog light 2 times at the first startup of the day, the first 2 days after the conversion, no cog light since then.

I may be wrong but I think the OP forgot to mention the 2 detent spring at the back of the gearbox which can fail.


I had the exact same experience. Some cog light coming up just after install and then its been perfect ever since.
Jump to top Distinct70 is online now   Reply With Quote
Old Tue, May-21-2019, 08:06:51 PM   #19
nightrunner
Registered User
 
Join Date: Jan 2018
Posts: 10
Reputation: 0 nightrunner is on a distinguished road
Location: Des Moines

United States




Default Re: SMG Pump Maintenance/Troubleshooting: Complete Guide

Great information. very useful.
__________________
STOCK 02 E46 M3 SMG....FOR NOW.
04 ACURA TSX 6SPD..BEATER
Jump to top nightrunner is offline   Reply With Quote
Old Tue, May-21-2019, 09:01:22 PM   #20
SMG cog light
Registered User
 
Join Date: Apr 2019
Posts: 231
In the garage:
Reputation: 0 SMG cog light is on a distinguished road

United States




Default Re: SMG Pump Maintenance/Troubleshooting: Complete Guide

Quote:
Originally Posted by chronos3333 View Post
I did the Bukhart CSL SMG relocation along with their thicker fluid + CSL DME tune on my ZCP. Very happy with the result.
Had the cog light 2 times at the first startup of the day, the first 2 days after the conversion, no cog light since then.

I may be wrong but I think the OP forgot to mention the 2 detent spring at the back of the gearbox which can fail.
I am very familiar with the detent spring problem. There is 3 altogether. The overheating or neutral drop has nothing to do with the detent springs.

If you have a broken spring, this is your symptom: When driving (usually from 3rd gear going into 4th gear) the 4th gear will blink and your car will rev because you have your foot on the accelerator and the gear didn't catch. You will have to release the throttle ; then the car will engage gear. However you will now notice you have a cog light and that 4th gear will no longer be able to be selected. Your car will now jump from 3rd gear directly to 5th gear, skipping 4th gear altogether. If you turn your car off, you will be able to reset and the 4th gear will be able to be selected. If you drive and shift gears around 3,000-3,500 rpm, the gear skip wont happen. (it mainly happens during hard acceleration and high rpms.)
Jump to top SMG cog light is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump



All times are GMT. The time now is 10:19:21 PM.


Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
M3Forum.com and M3forum.net is in no way sponsored, endorsed or affiliated by or with BMW NA / BMW AG or any of it's subsidiaries or vendors.
BMW and M3 (E90 M3 | E92 M3 | E93 M3 | E46 M3 | E36 M3 | E30 M3) are registered trademarks of BMW AG.
M3Forum Terms of Service
Copyright 1999-2017 M3Forum.com
Discussing SMG Pump Maintenance/Troubleshooting: Complete Guide 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)