Review of the JB+ beta tune for C250
Super Member
Joined: Jan 2009
Posts: 929
Likes: 51
From: Silicon Valley, California
Factory ordered 2012 MB C350 w/Dynamic Handling Package
I had the same problem. If I hit the gas too hard, the turbo would be thrown into overboost.. and the car would go into limp mode.. I would have to restart the engine to get the turbo running again.
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The car gets thrown into limp mode often... even with the dial turned low. It mostly happens when I'm driving around 75 mph and try and hit the gas. And don't even think about using cruise control with it. You will be thrown into limp mode within a minute or two.
2013 MD C250
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The car gets thrown into limp mode often... even with the dial turned low. It mostly happens when I'm driving around 75 mph and try and hit the gas. And don't even think about using cruise control with it. You will be thrown into limp mode within a minute or two.
2013 MD C250
This a train wreck waiting to happen. You mean you can no longer accelerate out of a situation to safe your life? And rather the car will go limp? Am I missing something here? Reliability and safety needs to be the top priority in a daily driver IMO.
Junior Member
Joined: Nov 2014
Posts: 25
Likes: 0
TBA
has anyone emailed burger tuning with logs to see if the software on the tune can be reviewed ? Terry has been great for the BM community and I am sure they will try and tweek the tune.
Last edited by SPJ; Dec 10, 2014 at 07:23 PM.
SPONSOR
Joined: Sep 2007
Posts: 364
Likes: 9
I had the same problem. If I hit the gas too hard, the turbo would be thrown into overboost.. and the car would go into limp mode.. I would have to restart the engine to get the turbo running again. It's more than likely, your engine light is nothing more than a signal that your car had at one point, gone into turbo overboost.
I bought a code reader online, for less than $100. I plugged it into the car (under the steering wheel to the left) and cleared the code and the light went out. It's an added but necessary expense to run the JB. I love my JB but I wish it were better. The car gets thrown into limp mode often... even with the dial turned low. It mostly happens when I'm driving around 75 mph and try and hit the gas. And don't even think about using cruise control with it. You will be thrown into limp mode within a minute or two.
2013 MD C250
I bought a code reader online, for less than $100. I plugged it into the car (under the steering wheel to the left) and cleared the code and the light went out. It's an added but necessary expense to run the JB. I love my JB but I wish it were better. The car gets thrown into limp mode often... even with the dial turned low. It mostly happens when I'm driving around 75 mph and try and hit the gas. And don't even think about using cruise control with it. You will be thrown into limp mode within a minute or two.
2013 MD C250
Member
Joined: Dec 2013
Posts: 126
Likes: 1
2014 C250, 2015 C63S E1
2014 Sport+ pack checking in. Installed it today and wow! Pretty noticeable difference obviously. Also running the BMS Intake. I'll check in for a long term test here in a while but these two mods together certainly make the car drive the way it was supposed to from the factory! Next up: exhaust.
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Junior Member
Joined: Dec 2015
Posts: 60
Likes: 0
From: Tampa, FL
c250 Coupe Sport
Installed the JB+ and the air filter from Burger 2 months ago on my 2013 MB c250. At first it was amazing. A noticeable pickup in acceleration on a pretty sluggish car. The best part was that 2 second lag, when I hit the gas at around 25 mph disappeared.
Things were great for a month. Then the car started going into limp mode. I would have to pull over and restart the car. Then the check engine light came on.. and the car started going into limp mode more frequently.
I had a mechanic clear the code (turbo overboost) and I turned down the dial about 5 percent from the original setting. The car didn't drive as smoothly with the JB+ turned down, but it was still better than it was originally.
It drove fine for another month.. and then it started happening again. Check engine light.. and limp mode.
It totally sucks.. but it's still better than driving the car with factory settings.
I just ordered an Actron CP9575 from Amazon. Hoping I can clear the codes myself. Hoping I will only have to do this once a month.
Things were great for a month. Then the car started going into limp mode. I would have to pull over and restart the car. Then the check engine light came on.. and the car started going into limp mode more frequently.
I had a mechanic clear the code (turbo overboost) and I turned down the dial about 5 percent from the original setting. The car didn't drive as smoothly with the JB+ turned down, but it was still better than it was originally.
It drove fine for another month.. and then it started happening again. Check engine light.. and limp mode.
It totally sucks.. but it's still better than driving the car with factory settings.
I just ordered an Actron CP9575 from Amazon. Hoping I can clear the codes myself. Hoping I will only have to do this once a month.
Junior Member
Joined: Dec 2015
Posts: 60
Likes: 0
From: Tampa, FL
c250 Coupe Sport
We've found many of the newer vehicles need to run the minimum most setting to avoid the DME's over boost plausibility code. Even with the dial at the MIN setting the car will still perform better than stock. If it's turned all the way to the bottom and still throwing an over boost code then there is some other issue at work. Perhaps a faulty unit. If you need additional assistance feel free to email technical support.
What are the things you should do to avoid limp mode on 2012 C250 Coupe??
Member
Joined: Dec 2013
Posts: 178
Likes: 2
From: SoCal
2013 C250
I had this installed on my 2013 c250 and man i was burning gas like crazy! I had to fill up every week. Ended up taking it out I couldn't justify the performance for all that gas. Not sure if you all experienced this
Member
Joined: Sep 2005
Posts: 82
Likes: 2
2014 C250
Additional JB+ Review Info
I just installed the JB+ earlier tonight and took a 'normal' test drive to drop off some stuff to ship. Basic impression if very favorable. A definite improvement in throttle response and mid range pull. I only had a chance to get on the gas hard for a few short stretches, but did not experience any problems. Too early to tell on gas mileage, but I reset my trip meter earlier today, so I'll take a look in a few days to see how it compares. (Previous tank was 24.3 MPG all in-town driving...)
