Changing ecu / do you lose hp
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2006 E55, 2012 GLK350 & 1992 190e sportline
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C63s
Why on earth would you want to replace a clk500 ECU with a different model ECU? And for you to ask if you would lose horsepower if you switched an ECU that originally had 306 hp with 288 is a joke.... Like common man get in line.
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2004 clk500
are you guys all kidding me? because its the same part number as the 2004 clk500 ! its the same number and its compatible !
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2004 clk500
because the ecu has the same effing part number thats why! its for ml500 or a 2004 clk500! but my question was that the ml 500 only has 288 hp so is the computer programed to that?
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2004 clk500
thats pretty ****ing funny because the part number is the same as the 2004 clk500 so before you guys start talking **** go see for your self. its compatible and everything . i just wanted a simple question answered
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2004 clk500
05 ml500'
2004 clk50 computer 113 153 48 79
so whats the problem ****ing idiot? i was just asking would i lose the hp even if the computers are compatible and the same. but the spec on the ml500 is 288 hp
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2008 CLK550 Cab
I'm no electronics expert, but I'm not sure it's a simple question. I don't know that an ECU is set to a certain HP per se, but is rather set to control a number of parameters that may be different where an engine is intended to deliver one HP rating vs. another. Whether all those parameters can be reset to match your engine is a different question. How soon can you plug it in to see what happens?
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2004 clk500
I'm no electronics expert, but I'm not sure it's a simple question. I don't know that an ECU is set to a certain HP per se, but is rather set to control a number of parameters that may be different where an engine is intended to deliver one HP rating vs. another. Whether all those parameters can be reset to match your engine is a different question. How soon can you plug it in to see what happens?
i put the new computer in and i have no ideah . i feel like i lost hp but i dont know if thats in my head or what. i think its the same engine as the ml500 but the ml500 ways way more !
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2008 CLK550 Cab
Oh, so you already installed it and it runs fine? You could have escaped some flaming by mentioning that. Well, if you cannot tell the difference then that proves my theory once again that people who insist they can feel a big difference from stuff like new filter housings are mostly imagining things.
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Actually, this engine and its ECU uses ME 2.8. That is the same for all M112 and M113 engines hence the common part number. ME is just the "protocol" for the ECU communicating with the various engine components. In addition to that basic code, the ECU has adaptations and even firmware that can be changed based on the specific engine. Obviously the operation of the M112 V6 would be different than the M113 V8, but the ECU can simply be coded for the appropriate engine. The problem is that this is performed via SCN coding, which requires a "live" version of SDS connected to MBZ corporate, and also, it can only be performed once on a virgin ECU. At least that's the "official" functionality. As with many things, there are probably hackers who have figured out how to do this with other means, like a complete firmware download or direct EEPROM programming. The bottom line though, is that you cannot just swap an ECU.
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2008 CLK550 Cab
Rodney's answer is a far more sophisticated version of my hunch. So Rodney, if his car actually seems to run, what is happening - are all the various parameters "close enough" but his engine is running at some unknown lesser efficiency?
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2004 clk500
Actually, this engine and its ECU uses ME 2.8. That is the same for all M112 and M113 engines hence the common part number. ME is just the "protocol" for the ECU communicating with the various engine components. In addition to that basic code, the ECU has adaptations and even firmware that can be changed based on the specific engine. Obviously the operation of the M112 V6 would be different than the M113 V8, but the ECU can simply be coded for the appropriate engine. The problem is that this is performed via SCN coding, which requires a "live" version of SDS connected to MBZ corporate, and also, it can only be performed once on a virgin ECU. At least that's the "official" functionality. As with many things, there are probably hackers who have figured out how to do this with other means, like a complete firmware download or direct EEPROM programming. The bottom line though, is that you cannot just swap an ECU.
and the car runs fine but i have no ideah if i lost horse power or not.
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2004 clk500
ml500 ecu a 113 153 48 79
2005 Mercedes-Benz M-ClassCurb weight: 4,874 lbs
Curb weight: 4,874 lbs
Horsepower: 288 hp
MPG: 14 city / 17 highway
Engine: 5.0 L V8
Torque: 325 lb-ft
Wheel size: 17″ diameter, 8.5″ width
Dimensions: 183″ L x 72″ W x 72″ H
2004 clk500 computer 113 153 48 79
Model: 2004 Mercedes-Benz CLK-Class
Curb weight: 3,585 to 3,905 lbs
Horsepower: 302 hp
MPG: 17 city / 22 highway
Engine: 5.0 L V8
Torque: 339 lb-ft
Wheel size: Front 17″ diameter, 7.5″ width; rear 17″ diameter, 8.5″ width
i already swapped the emobilizer to the doner ecu the ml500 . they both have the same engine but weight is different . so at the end of the day did i lose the horespower or no?
2005 Mercedes-Benz M-ClassCurb weight: 4,874 lbs
Curb weight: 4,874 lbs
Horsepower: 288 hp
MPG: 14 city / 17 highway
Engine: 5.0 L V8
Torque: 325 lb-ft
Wheel size: 17″ diameter, 8.5″ width
Dimensions: 183″ L x 72″ W x 72″ H
2004 clk500 computer 113 153 48 79
Model: 2004 Mercedes-Benz CLK-Class
Curb weight: 3,585 to 3,905 lbs
Horsepower: 302 hp
MPG: 17 city / 22 highway
Engine: 5.0 L V8
Torque: 339 lb-ft
Wheel size: Front 17″ diameter, 7.5″ width; rear 17″ diameter, 8.5″ width
i already swapped the emobilizer to the doner ecu the ml500 . they both have the same engine but weight is different . so at the end of the day did i lose the horespower or no?
Last edited by zuzu_pali; Jul 2, 2016 at 10:31 AM.
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We got that it has the same part number the first 15 times you said it. If you would listen to Rodney, he's telling you that is not the only issue - they are the "same" at some level, but have custom settings for each engine. But your attempt to "equalize" HP between the 2 because of weight, wheel size, etc. is just silly. If it runs ok, then you got lucky. Beyond that there is no answer we can give you.
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The engine and electronics are close enough for it to run. Both are 5L V8 with identical ignition, fuel injector size, fuel pressure etc (I presume). They also have similar timing, fuel delivery etc. They differ in the final trim, ie the ML probably runs less timing or a bit richer etc to make the lower power that MB was aiming for with that model. What was wrong with your stock ECU?
I wouldn't have thought it would work at all without the VIN being coded to it. If you took one from a 4.3 or 5.5L M113 or the M112 then you would definitely have issues despite the same part number.
I wouldn't have thought it would work at all without the VIN being coded to it. If you took one from a 4.3 or 5.5L M113 or the M112 then you would definitely have issues despite the same part number.
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2004 clk500
The engine and electronics are close enough for it to run. Both are 5L V8 with identical ignition, fuel injector size, fuel pressure etc (I presume). They also have similar timing, fuel delivery etc. They differ in the final trim, ie the ML probably runs less timing or a bit richer etc to make the lower power that MB was aiming for with that model. What was wrong with your stock ECU?
I wouldn't have thought it would work at all without the VIN being coded to it. If you took one from a 4.3 or 5.5L M113 or the M112 then you would definitely have issues despite the same part number.
I wouldn't have thought it would work at all without the VIN being coded to it. If you took one from a 4.3 or 5.5L M113 or the M112 then you would definitely have issues despite the same part number.
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So, swapping all the other parts means your car now "thinks" it's that ML500 donor. The CLK500 and ML500 have the same engine, but the ML500's lower HP is due to a change in engine program to give the heavier ML a bit more torque at various points on the power curve. In real world driving, it may not make a difference at all, but it will be different than a stock CLK500.
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So, swapping all the other parts means your car now "thinks" it's that ML500 donor. The CLK500 and ML500 have the same engine, but the ML500's lower HP is due to a change in engine program to give the heavier ML a bit more torque at various points on the power curve. In real world driving, it may not make a difference at all, but it will be different than a stock CLK500.
