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ECU Mod

 
Old 11-22-2008, 11:47 PM
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2008 Mercedes C300 4Matic
ECU Mod

Hey Guys,

I'm looking to do the Speed Innovation ECU mod, especially now that they have the special going on. I was wondering (especially from the ones who have done it), how do I get to the ECU and how do I go abouts to removing it? If anyone has some pictures or a DIY that would be awesome, I don't even know what the ECU looks like lol.

Thanks in advance guys
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Old 11-23-2008, 01:38 AM
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mercedes benz 2008 c 300 sport sedan
how much is it?
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Old 11-23-2008, 01:44 AM
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Originally Posted by [email protected] View Post
how much is it?
$449
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Old 11-23-2008, 08:52 AM
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Does Speed Innovation have any Dyno numbers out on this? Does it improve throttle response as that is my biggest gripe with stock unit?
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Old 11-23-2008, 12:53 PM
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I went to their website and it doesn't give much information. What does this mod do?
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Old 11-23-2008, 05:31 PM
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Their pretty reputable. They claim 18hp and 24tq and would get rid of the throttle lag completely. Another member on the board has done it and loved it. (Azn_300). Only thing I worry about is sending my ECU board out there. (The risks of Fedex or UPS losing it in the process is a scary one as these are extremely expensive)
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Old 11-23-2008, 11:14 PM
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Originally Posted by micropower99 View Post
Hey Guys,

I'm looking to do the Speed Innovation ECU mod, especially now that they have the special going on. I was wondering (especially from the ones who have done it), how do I get to the ECU and how do I go abouts to removing it? If anyone has some pictures or a DIY that would be awesome, I don't even know what the ECU looks like lol.

Thanks in advance guys
I didn't get a good enough look when he removed the ecu, but it took him like 20 seconds to pull it out. Really easy it would seem. You could try questioning them on removal instructions. It was like a motherboard or large PCI card.
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Old 11-24-2008, 03:01 PM
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Originally Posted by Azn_C300 View Post
I didn't get a good enough look when he removed the ecu, but it took him like 20 seconds to pull it out. Really easy it would seem. You could try questioning them on removal instructions. It was like a motherboard or large PCI card.
Yes, and in all of the cars I have done, the ECU is usually in the cowl area and the unit is in a box that should just unplug. My last car, however, was done by plugging into the OBD II port. Call Speed Innovation and ask them where it's located. The website doesn't offer the info.

Last edited by Derspeed; 11-24-2008 at 03:08 PM.
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Old 11-24-2008, 03:54 PM
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the ECU is the metal "box" on the top of the motor. if your looking at the V6 emblem on anything other than the C63 its that thing above or behind, depending on which way your looking, with the heat sink fins. Basically its the only piece of metal visible when the covers are on.
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Old 11-24-2008, 04:02 PM
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ECU is pretty easy to remove...
i have SI ECU on all of my MBs...
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Old 11-24-2008, 04:42 PM
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Originally Posted by MJ50 View Post
ECU is pretty easy to remove...
i have SI ECU on all of my MBs...
How is SI in terms of reputable and quality in your opinion?
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Old 11-24-2008, 04:48 PM
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Originally Posted by micropower99 View Post
How is SI in terms of reputable and quality in your opinion?
i personally don't have experience with other tuners like KLEEMANN or RENNtech, but i do have experience with 1 other tuner and i can say SI was better...
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Old 11-24-2008, 04:52 PM
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Originally Posted by MJ50 View Post
i personally don't have experience with other tuners like KLEEMANN or RENNtech, but i do have experience with 1 other tuner and i can say SI was better...
Thanks for the input bro. What kind of gains have you had in the past with them? Have you dyno'd before or could just feel a difference?
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Old 11-24-2008, 04:57 PM
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Originally Posted by micropower99 View Post
Thanks for the input bro. What kind of gains have you had in the past with them? Have you dyno'd before or could just feel a difference?
on 203 and 163, i didn't do the dyno but definitely felt gains...
on 211, i did the dyno but that was with pulley mod so i don't have dyno # just for the tune...
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Old 11-24-2008, 04:58 PM
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are there no dyno at all of SI tunes? w203's would work as a ref point.
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Old 11-24-2008, 05:00 PM
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Originally Posted by StickyZ View Post
are there no dyno at all of SI tunes? w203's would work as a ref point.
gains are posted but not actual dyno results...
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Old 11-24-2008, 05:20 PM
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I know a few people that are all very happy with SI. In fact I don't think I've ever heard a bad thing. The tune is fairly cheap in comparison to others but without solid data its tough to rip the brain out of a car and send it off to the lowest priced vendor.
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Old 11-24-2008, 05:24 PM
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Originally Posted by StickyZ View Post
I know a few people that are all very happy with SI. In fact I don't think I've ever heard a bad thing. The tune is fairly cheap in comparison to others but without solid data its tough to rip the brain out of a car and send it off to the lowest priced vendor.
which tuner (cheap or expensive) provides dyno for every MB/euro engines?
i''m happy with 3 SI tunes...

do ur dyno before ur ECU tune...
get SI tune and do another dyno (this will give u accurate "data" you looking for)
if u aren't happy with results, just send it back to get de-tuned and money back...
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Old 11-24-2008, 05:30 PM
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fair enough
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Old 11-24-2008, 11:23 PM
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Originally Posted by micropower99 View Post
$449
good
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Old 12-01-2008, 02:52 AM
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Just an update guys. I paid for the ECU tune and am having it done later in December. (Around the 26th or 27th) As I need the use of my car quite bit between now and then but I still wanted to get the deal before the end of the month when it goes back to 599$.

p.s. I also bought the Kenwood CCD-2000 backup camera, and should have that installed around the same time.
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Old 12-01-2008, 03:00 AM
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Hope you enjoy it as much as I do
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Old 01-04-2009, 04:03 PM
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Micro, any update on this mod? did you do it yet, do you like it?
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Old 01-04-2009, 04:38 PM
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Originally Posted by popejp41 View Post
Micro, any update on this mod? did you do it yet, do you like it?
Hey, I decided to hold off on this for a month while I do a few other mods now (backup camera, cf lip)
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Old 01-06-2009, 05:10 AM
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Originally Posted by micropower99 View Post
Hey, I decided to hold off on this for a month while I do a few other mods now (backup camera, cf lip)
youll enjoy it..i have that same tune as well..ask them if they can do the super aggressive tune!!!
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