slow performance
12-22-2009, 07:08 AM
#1
Senior Member
Thread Starter
slow performance
A few weeks ago I become owner of 2007 R320 CDI. I have noticed that car a little bit hesitate to accelerate and I am wondering if any software update could be performed on car to solve that problem. When I press pedal, I fill that car doesn't respond on that (I used to have E320 CDI and I didn't have that problem) - it does take ~ 1 sec to respond on that event. In my dealership, they told me store that engine is going through regeneration mode and it is normal - I cannot believe but I'd like confirm it here ...
Also, I have installed Kleeman box but I don't see big difference..?
What I should do ..?
10x thanks ..
Alex
Also, I have installed Kleeman box but I don't see big difference..?
What I should do ..?
10x thanks ..
Alex
12-22-2009, 01:44 PM
#2
MBWorld Fanatic!
There are lots and lots of dealer technical bulletins regarding performance of this transmission behind the diesel. Take it in.
12-22-2009, 10:17 PM
#3
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12-23-2009, 12:47 AM
#4
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MBs
Apr 02, 2008
S-B-27.00/105
Model 164.122/822 Model 211.022 Model 251.122
Harsh Activation of Torque Converter Lockup Clutch
Apr 02, 2008
S-B-27.00/104
Model 164.122/822 Model 211.022 Model 251.122
Slow Acceleration with Gas Pedal Hesitation
12-23-2009, 09:11 AM
#5
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I sent e-mail to my SA asking about all TSB performed to car. I am just wondering if ECU could be programmed to the latest software. I am going ask what it is the current version on car and I can compare it here ...
I used to drive E320 CDI and it was much, much faster ...
A.
12-24-2009, 01:34 PM
#6
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2008 Audi R8; 2004 Lexus RX330
Every auto magazine review I've read on the R-class diesel mentions an unnerving lag upon pressing the gas. Once on the boil, though, the diesel reportedly moves the car pretty well.
12-25-2009, 02:28 PM
#7
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R350
You can try tunekit, I installed one on my R350, it helps. Reputedly a MKB ECU programing will turn the acceleration into a BMW style and still keep a Mercedes' comfort, I'll try this soon.
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12-31-2009, 09:44 AM
#8
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Could you please give me some link about it (tunekit). I am using Kleeman box (not ECU programming) and it did work excellent on my E320 CDI. Once I put on 1000 lb havier car, I don't see any improvement ...
12-31-2009, 01:12 PM
#9
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R350
zemun1234,
You can find what you need(power pedal) here: www.tunekit.com
Actually it won't increase power and torsion but only quicken up the pedal reaction, therefore, I think a ECU tuning should be done for better power output.
You can find what you need(power pedal) here: www.tunekit.com
Actually it won't increase power and torsion but only quicken up the pedal reaction, therefore, I think a ECU tuning should be done for better power output.
01-02-2010, 10:15 AM
#10
Senior Member
Thread Starter
zemun1234,
You can find what you need(power pedal) here: www.tunekit.com
Actually it won't increase power and torsion but only quicken up the pedal reaction, therefore, I think a ECU tuning should be done for better power output.
You can find what you need(power pedal) here: www.tunekit.com
Actually it won't increase power and torsion but only quicken up the pedal reaction, therefore, I think a ECU tuning should be done for better power output.
as I mentioned, I have Kleeman KD-Box and I think I am getting some boost (not as for E320 CDI) but I think my problem is TCU (transmission) software. I see Kleeman has ECU programming which it does modify both ECU and TCU. I am not sure if it does work 2,000 $ for heavy car as 'R' model ...
Is anybody there tried to do chip programming for R model ?
01-02-2010, 06:12 PM
#11
MBWorld Fanatic!
What transmission mode are you driving - C or S? I noticed a big difference between Comfort vs. Sport. I like the S as it's obviously peppier, but it also has more torque at low rpm and makes it difficult to stop/accelerate as smoothly from complete stock due to the brakes.
Patrick
Patrick
01-03-2010, 10:20 PM
#12
Senior Member
Thread Starter
What transmission mode are you driving - C or S? I noticed a big difference between Comfort vs. Sport. I like the S as it's obviously peppier, but it also has more torque at low rpm and makes it difficult to stop/accelerate as smoothly from complete stock due to the brakes.
Patrick
Patrick
1995, 44i, 525i, acceleration, accelerator, bmw, car, e320, hesitating, hesitation, low, performance, slow, statistics, wwwtunekitcom, x5
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