OE TUNING or Tunes?
MBWorld Fanatic!
Joined: Jul 2008
Posts: 8,384
Likes: 800
2019 G70 6MT & 2022 Ford Maverick XL
I had a 2005 C230K, a 2009 E350, a 2011 C300, and a 2014 C350 - all start in 2nd gear in E mode. The 2014 C350 had the same exact drivetrain as the E350.
Makes no sense.
Makes no sense.
MBWorld Fanatic!
Joined: Oct 2010
Posts: 5,141
Likes: 1,293
From: Southern US
2010 E550, 273 Engine: 2012 S550, 278 Engine
to be honest I’m not looking for speed or anything. I just notice I need or hope to get a better throttle response. When I hit the gas I notice my car takes a little time to start moving but as for what it does not much that I know of. Just looking to make the car more responsive... that’s what my hopes are with a tune.
First, you can reset your TCU to get it out from the “granny” driving mode that it somehow learns to go to. Mine does the same thing, even my S550 does.
Reset procedure:
1. Get in the car and close all doors.
2. Turn key to position 2 or press the start button twice. KEEP YOUR FOOT OFF THE BRAKE PEDAL. You do NOT want to start the engine during this procedure.
3. Press the gas pedal all the way down and hold it.
4. After holding it for 10 seconds turn key to off position or press the start button once to turn all power off.
5. After power is off lift your foot from the gas pedal.
6. Wait for 2 minutes. Do not open doors or touch anything, just wait for 2 minutes. Time it!
7. After 2 minute wait open door.
8. Go drive and enjoy!
Problem with this procedure is that depending on your driving you need to do it again in a couple of weeks, but it works every time though.
Somewhat permanent fix is to install Sprint Booster or a like. I have Sprint Booster and it is awesome what it does. It practically eliminated the throttle lag and makes car a lot enjoyable to drive. Costs $300 and, at least in my car, is super easy to install as you just take two nuts off the gas pedal assembly and install sprint booster directly in the pedal assembly and then the car wire harness to the sprint booster.
I highly recommend this device if you only want to get rid of the gas pedal lag. And it makes the car feel like it has more power but I don’t think it does.
MBWorld Fanatic!
Joined: Jul 2008
Posts: 8,384
Likes: 800
2019 G70 6MT & 2022 Ford Maverick XL
So strange we all want what we do not have. I don't need throttle amplification, I need it to be dialed back some. Others want things like sprint boosters that amplify the throttle signals.
Newbie
Joined: Apr 2021
Posts: 1
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2012 E 550
Member
Joined: Aug 2020
Posts: 206
Likes: 51
2011 Mercedes-Benz E550 4Matic
Weistec has the best tune in my opinion when it comes to the M278. Renntech is an option but is far less budget friendly. OETuning is an option too but Weistec really shows the engines power without sacrificing reliability.
