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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, Oct-13-2019, 04:54:07 AM   #11
herwawan
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Default Re: SMG - compression springs or Gear Position Sensor first?

Quote:
Originally Posted by Distinct70 View Post
Put in mode 5. Start shifting around 3000+ RPM in regular driving and manual shifting. Donít let off your foot. Just keep it steady. You will see the car is naturally dropping RPM in between shifts and then climbing back up in the next gear. Then manual shift up again.

You can definitely ease off the gas for low speed and dealing with first gear or stop and go traffic but regular, spirited and racing, you donít have to lift off.
Holy cow. Just needed the manual! Went for a sunset drive on some canyon roads, and oh my god. Once you understand that gearbox, itís hard to imagine driving something else. Thanks Distinct70, Iím pretty much in love with that SMG now. If it wasnít so pricey to fix, I guess it would get more love.

At full throttle and high RPM in the 5 setting though, I can hear the ďclongĒ when shifting up, that you can hear also on some YouTube videos. Not sure itís really good for the tranny. Whatís the trick there to smooth it out?

Man there should be a good tutorial to teach peeps how to drive and enjoy that gearbox. I feel like Iím driving a new car.

Quote:
Originally Posted by ///MonkeyTech View Post
i would put it on the computer and relearn the clutch catching points if no codes pop up
The shop I brought it to for the I2 pulled the code but nothing showed up. They did a reset (feel free to confirm thatís what youíre talking about!) and I canít really complain about anything apart from the COG I mentioned from the horrible 2,5h of traffic jams at 3pm haha but yeah, I agree - since that light showed up, an error is probably a stored. Iíll get it checked next time!
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Old Sun, Oct-13-2019, 06:30:01 AM   #12
Distinct70
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Default Re: SMG - compression springs or Gear Position Sensor first?

Thatís great to hear. That violent sound and feel is really just the hard shifting. You would get the exact same thing with a manual high throttle super fast shift. Just back it off the SMG setting as you need to. You might check some components in your drivetrain to see if they are worn if itís really bad.

I would say that in 2019, youíre owning the SMG at a great time in the history of the transmission in terms of costs and convenience. The relocation kit, the aftermarket seals, the Burkhart pump motor are all really enabling the cost reduction and making it easier to own the transmission and making it reliable. The last thing thatís required these days is a good aftermarket accumulator option (something I need next). If you have your own software, makes it even easier. Buy a couple salmon relays and you should be gold.

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Old Mon, Oct-14-2019, 01:12:57 AM   #13
oceansize
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Default Re: SMG - compression springs or Gear Position Sensor first?

Now apply the CSL SMG upgrades:

1. Download the e46 version of this tool and apply the CSL SMG Shift / Rev matching + Inertia fix
2. Apply the second part of the tune following this guide.

Then enjoy speedier shifts.
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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 |
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Old Mon, Oct-14-2019, 04:33:39 AM   #14
herwawan
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Default Re: SMG - compression springs or Gear Position Sensor first?

Quote:
Originally Posted by oceansize View Post
Now apply the CSL SMG upgrades:

1. Download the e46 version of this tool and apply the CSL SMG Shift / Rev matching + Inertia fix
2. Apply the second part of the tune following this guide.

Then enjoy speedier shifts.
Iím glad youíre bringing that up! Thanks for the links. What is your thoughts on that software:

http://tuningtechfs.com/ttfs-smg-software/

I spotted it a few weeks ago during my research. Is it very different than the one you shared above?
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ex: BMW 530i e34 '89
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Old Mon, Oct-14-2019, 05:28:45 AM   #15
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Default Re: SMG - compression springs or Gear Position Sensor first?

I had my compression springs replaced at the same time they did the clutch/flywheel. And it helped so much with my 2-3rd shift lag. But i still love/hate the SMG. I ordered they Martyn tool which I should get Monday. Doing the CSL tune is the last thing i'm gonna try before looking into a manual conversion more seriously.
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Old Mon, Oct-14-2019, 08:07:32 AM   #16
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Default Re: SMG - compression springs or Gear Position Sensor first?

Quote:
Originally Posted by herwawan View Post
Iím glad youíre bringing that up! Thanks for the links. What is your thoughts on that software:

http://tuningtechfs.com/ttfs-smg-software/

I spotted it a few weeks ago during my research. Is it very different than the one you shared above?
Correct me if I'm wrong, the TTFS tune uses the same parameters as the CSL software - basically the same thing. With the TTFS, you're paying for the ease of applying the software and support from them. I did the CSL flash (using the same software as posted by oceansize above) on my old car and it greatly improves the SMG in every way. For the cost of a $30 cable and an hour of your time, it's well worth it and highly recommended.
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Old Mon, Oct-14-2019, 08:20:36 PM   #17
oceansize
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Default Re: SMG - compression springs or Gear Position Sensor first?

Quote:
Originally Posted by herwawan View Post
I’m glad you’re bringing that up! Thanks for the links. What is your thoughts on that software:

http://tuningtechfs.com/ttfs-smg-software/

I spotted it a few weeks ago during my research. Is it very different than the one you shared above?
See this post from Martyn. I would just get Martyn's tool and buy a cable. The TTFS tool doesn't perform the upgrade I listed in number 2 above. You will have to follow the instructions listed on Martyn's site.

I like the bimmer geeks k+dcan cable as it has built in switch to bridge pins 7 and 8 together (which we need to do for e46s, e39s, etc.)
__________________

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
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Old Mon, Oct-14-2019, 08:24:04 PM   #18
oceansize
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Default Re: SMG - compression springs or Gear Position Sensor first?

Quote:
Originally Posted by liam821 View Post
Correct me if I'm wrong, the TTFS tune uses the same parameters as the CSL software - basically the same thing. With the TTFS, you're paying for the ease of applying the software and support from them. I did the CSL flash (using the same software as posted by oceansize above) on my old car and it greatly improves the SMG in every way. For the cost of a $30 cable and an hour of your time, it's well worth it and highly recommended.
The TTFS tool does not implement the "255" smg portion of the CSL upgrades that I listed in item 2 above. It only implements the CSL upgrades for item 1. See this post from Martyn.
__________________

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
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Old Mon, Oct-14-2019, 08:50:30 PM   #19
liam821
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Default Re: SMG - compression springs or Gear Position Sensor first?

Quote:
Originally Posted by oceansize View Post
The TTFS tool does not implement the "255" smg portion of the CSL upgrades that I listed in item 2 above. It only implements the CSL upgrades for item 1. See this post from Martyn.
Thanks for the clarification.
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Old Tue, Oct-15-2019, 07:01:38 PM   #20
herwawan
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Default Re: SMG - compression springs or Gear Position Sensor first?

Quote:
Originally Posted by Distinct70 View Post
I would say that in 2019, youíre owning the SMG at a great time in the history of the transmission in terms of costs and convenience. The relocation kit, the aftermarket seals, the Burkhart pump motor are all really enabling the cost reduction and making it easier to own the transmission and making it reliable. The last thing thatís required these days is a good aftermarket accumulator option (something I need next). If you have your own software, makes it even easier. Buy a couple salmon relays and you should be gold.
Good point. It would make sense to have a repository of items with the breakdown of price+links to bring clarity on what you've explained above

Relocation kit - problem - solution - cost
Aftermarket seals - problem - solution - cost
Burkhart pump motor - problem - solution - cost
Salmon relay - problem - solution - cost

I sent a PM to idntknow2005 regarding the relocating kit, but haven't received an answer yet. He seems to be pretty busy anyways.

At this point, demystifying the SMG would take a very clear and simple solution because of 10+ years of bashing. Typing "SMG" in Google kinda sums it up.

Quote:
Originally Posted by scootter82 View Post
I had my compression springs replaced at the same time they did the clutch/flywheel. And it helped so much with my 2-3rd shift lag.
That's good to know! Where they broken?

Quote:
Originally Posted by oceansize View Post
The TTFS tool does not implement the "255" smg portion of the CSL upgrades that I listed in item 2 above. It only implements the CSL upgrades for item 1. See this post from Martyn.
Thanks for clarification and the links! It makes sense now. I'll get that cable and will work on that.

One question though: what do you use to keep the battery up? Any tender would do or is there a recommended product?
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ex: BMW 120i f20 '16
ex: BMW 328i Convertible e36 '96
ex: BMW 628 Csi e24 '87
ex: BMW 328i Coupť e36 '98
ex: BMW 530i e34 '89
ex: BMW 735i e23 '81
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Discussing SMG - compression springs or Gear Position Sensor first? 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)