C43 '55' swap thread
Junior Member
Joined: Jun 2019
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Clk430
The c43 ecu was used on the 5.4L the m113 986 it came with the engine the mechanic removed the clk 430 ecu and used the c43 ecu i think he knew the 430 won't work maybe? I dunno but now as per the mechanic who installed it the car is using a c43 ecu with a c55 map on it on the 5.4L m113 986 engine should i remove and check the ecu number? Does that help?
Junior Member
Joined: Jun 2019
Posts: 16
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Clk430
trying to contact the guy to see where the hell is the c43 ecu most likely he cheaped out and kept the clk430 ecu instead of changing everything 
i will update when he wakes up meanwhile ill go threw the 430 to 55 thread
MBWorld Fanatic!
Joined: Aug 2006
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From: A.D., U.A.E
2000 (W202 C200) & 2000 (W202 C55)
Yeah, this is 01-02 "CLK430/E430" (ME2.8),
C43 always comes as (ME2.0), it will NOT match or works with your all other modules,
you can simply install (ECU/ME2.8) from 01-02 "CLK55/E55",
or tune your exist ECU to 5.4L firmware data/file,,
prefer not driving it, will blows the Engine quickly..!!
-;ZAYED;-
C43 always comes as (ME2.0), it will NOT match or works with your all other modules,
you can simply install (ECU/ME2.8) from 01-02 "CLK55/E55",
or tune your exist ECU to 5.4L firmware data/file,,
prefer not driving it, will blows the Engine quickly..!!
-;ZAYED;-
Junior Member
Joined: Jun 2019
Posts: 16
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Clk430
I was there when the tuner came he put the c55 5.4L files on it ,but before he did that the car was a beast but cuts out at 3k rpm and we had a code load limit reached i guess it was knoking on the different ignition map but it would burn the tires even on 3rd gear, after the tuner finished we went to a drive and the car became like a minivan burns tires on 1st gear and stalls fron 2nd gear and up i told the tuner the car died while it should have became better he said now u have a 362hp map on it for sure but u might have a mechanical problem sonewehere else but for the map what do u think what should i do?
what do u think what should i do?
MBWorld Fanatic!
Joined: Aug 2006
Posts: 7,053
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From: A.D., U.A.E
2000 (W202 C200) & 2000 (W202 C55)
You have 2 options:-
A) get complete 01-02 "CLK55/E55" ignition system, (ECU/ESL/EIS/key).
B) contact to "Eurocharged", they will send to you a Remote cable,
then they will able to modified & tune your ECU Remotely, without sending your ECU to them..
-;ZAYED;-
A) get complete 01-02 "CLK55/E55" ignition system, (ECU/ESL/EIS/key).
B) contact to "Eurocharged", they will send to you a Remote cable,
then they will able to modified & tune your ECU Remotely, without sending your ECU to them..
-;ZAYED;-
Junior Member
Joined: Jun 2019
Posts: 16
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Clk430
Today i changed my battery after i intalled the new battery i belive the ecu reset the adaptation cz on the way home the car was burning tires on 3rd gear at speeds of 150km/h was doing drifts on 3rd gear i pulled to fix a broken rim i start the car again and drive and its a minivan again stalling at 2nd gear i duno what's going on with this ecu its driving me crazy
Is there a way i can obtain my old map file again? the clk430 file? Or can i find it online somewhere? I don't wana spend that much money new ecu.... Or a tune that i dunno if it works,
I wana try and flash my old clk430 file and see if the ecu might adapt to the 5.4L on its own
Any clue if i can find the original map for the clk430?
Is there a way i can obtain my old map file again? the clk430 file? Or can i find it online somewhere? I don't wana spend that much money new ecu.... Or a tune that i dunno if it works,
I wana try and flash my old clk430 file and see if the ecu might adapt to the 5.4L on its own
Any clue if i can find the original map for the clk430?
Last edited by Ang Seb; Jul 8, 2019 at 03:06 PM.
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MBWorld Fanatic!
Joined: Aug 2006
Posts: 7,053
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From: A.D., U.A.E
2000 (W202 C200) & 2000 (W202 C55)
430 ECU can't be self adapted my friend, need to put full 55 data/file to get proper O2 lambda reading with RON/file,
also, you will have to replace the ESP module to 55 one, 430 won't work with 55 file..!,
so risk driving the car like this, cause you already reached the "safety limit mixture"..!?!,
i tried that with my previous 02 E430, three years ago,,
have to get "CLK55/E55" full ignition system, or modified your exist ECU to 55 firmware..
-;ZAYED;-
also, you will have to replace the ESP module to 55 one, 430 won't work with 55 file..!,
so risk driving the car like this, cause you already reached the "safety limit mixture"..!?!,
i tried that with my previous 02 E430, three years ago,,
have to get "CLK55/E55" full ignition system, or modified your exist ECU to 55 firmware..
-;ZAYED;-
Junior Member
Joined: Jun 2019
Posts: 16
Likes: 0
Clk430
430 ECU can't be self adapted my friend, need to put full 55 data/file to get proper O2 lambda reading with RON/file,
also, you will have to replace the ESP module to 55 one, 430 won't work with 55 file..!,
so risk driving the car like this, cause you already reached the "safety limit mixture"..!?!,
i tried that with my previous 02 E430, three years ago,,
have to get "CLK55/E55" full ignition system, or modified your exist ECU to 55 firmware..
-;ZAYED;-
also, you will have to replace the ESP module to 55 one, 430 won't work with 55 file..!,
so risk driving the car like this, cause you already reached the "safety limit mixture"..!?!,
i tried that with my previous 02 E430, three years ago,,
have to get "CLK55/E55" full ignition system, or modified your exist ECU to 55 firmware..
-;ZAYED;-
MBWorld Fanatic!
Joined: Aug 2006
Posts: 7,053
Likes: 398
From: A.D., U.A.E
2000 (W202 C200) & 2000 (W202 C55)
Depend to the part # of the ECU you will bring, and the ESP version in your CLK430,
im my friends CLK430, he had to replaced the ESP module, cause the version is differ than ECU coding that scanned in ESP module,,
A) CLK430 ESP modules with scan code "MDF/0239" #s:-
"029 545 62 32" or "029 545 70 32" or "029 545 72 32"
B) CLK55 ESP module scan code "MDF/0299" #s:-
"031 545 07 32"
-;ZAYED;-
im my friends CLK430, he had to replaced the ESP module, cause the version is differ than ECU coding that scanned in ESP module,,
A) CLK430 ESP modules with scan code "MDF/0239" #s:-
"029 545 62 32" or "029 545 70 32" or "029 545 72 32"
B) CLK55 ESP module scan code "MDF/0299" #s:-
"031 545 07 32"
-;ZAYED;-
Junior Member
Joined: Jun 2019
Posts: 16
Likes: 0
Clk430
I don't have any issue or code related to esp or engine everything is working properly,
The only way to make the car run normaly is to reset the ecu after the reset the car is a beast until i turn it off and on again is this purely tune related?
The only way to make the car run normaly is to reset the ecu after the reset the car is a beast until i turn it off and on again is this purely tune related?
MBWorld Fanatic!
Joined: Aug 2006
Posts: 7,053
Likes: 398
From: A.D., U.A.E
2000 (W202 C200) & 2000 (W202 C55)
Have to be more careful my friend..!!,
resetting the ECU constantly will harms every Elc. components, and less age for Engine health..!?!?
-;ZAYED;-
resetting the ECU constantly will harms every Elc. components, and less age for Engine health..!?!?
-;ZAYED;-
MBWorld Fanatic!
Joined: Oct 2013
Posts: 1,649
Likes: 46
From: New Jersey
1999 AMG C43
lol. he is telling you what to do to make it normal. resetting ecu everyday 5 times a day isnt normal. yes you have issues. maybe more issues than you even know at this point.
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From: Land of mountains, cheese, chocolate and watches
12' W204 C63 AMG coupe "T-Rex", 12' W451 Smart Fortwo Pulse (99' W202 C43 AMG + Ultima Can-Am sold)
You have some problems which need to be solved, not unless you like spending money when you electronics fries, or worse you hole a piston because of a wrong fuel mixture ratio.
MBWorld Fanatic!
Joined: Oct 2013
Posts: 1,649
Likes: 46
From: New Jersey
1999 AMG C43
this guy a little funny actually. i dont want to tell him he cant get help here or anything but he came here and aid he mod the c43. not true. then he said all this nonsense about the mod which was never true. and zayed help him out. probably the most knowledgeable guy on here with this issue and he keep insisting to do it his way. and even when zayed said i did exactly that, it does not work, he continues to push for solution that will not work.
if you want to teach us something then just do it and come back when it is done.
im not 1 for burning but he is just very funny.
MBWorld Fanatic!
Joined: Aug 2006
Posts: 7,053
Likes: 398
From: A.D., U.A.E
2000 (W202 C200) & 2000 (W202 C55)
this guy a little funny actually. i dont want to tell him he cant get help here or anything but he came here and aid he mod the c43. not true. then he said all this nonsense about the mod which was never true. and zayed help him out. probably the most knowledgeable guy on here with this issue and he keep insisting to do it his way. and even when zayed said i did exactly that, it does not work, he continues to push for solution that will not work.
if you want to teach us something then just do it and come back when it is done.
if you want to teach us something then just do it and come back when it is done.
have a good one bro..
-;ZAYED;-
Junior Member
Joined: Jun 2019
Posts: 16
Likes: 0
Clk430
Thx for the support
Sorry for the confusion guys as i thought my mechanic used the c43 ecu that came with the engine at first and sorry for making u upset by the questions but u don't learn just by swaping parts or doing a tune somewhere and wasting money from 1 garage to the other, i dont like that and especialy spending 800 euro on a tune while the whole engine costs 800euro dosent make sense
I like to learn diagnose improve understand and find the root cause
Zayed thx a lot man for the constant reply
But now i know what's wrong with the car i still don't have any fault codes that i don't understand on this engine but i know whats the problem and how to fix it already did a few tests and its working now temporarily untill my flashing kit arrives
Basicaly my engine is from an e55 with 11:1cr and the tune that was flashed on the ecu was for the c55 10.5:1 cr basicaly a lower compression ratio engine will always have more advance timing in the ignition map after warmup that's why it works on cold temps and doesn't after warm up basically during warmup i have more fuel and more retard to heat up the cats after it heats up ot reverts back to the main ignition map that most likely is causing knock and missfires and wrong afr's
-To solve this issue flashing the correct e55 original file will solve this issue
-Or retarding the timing in the ignition map from the map that is on the ecu now
-Also increasing fuel pressuee worked but that's not the right way to do it
I like to learn diagnose improve understand and find the root cause
Zayed thx a lot man for the constant reply
But now i know what's wrong with the car i still don't have any fault codes that i don't understand on this engine but i know whats the problem and how to fix it already did a few tests and its working now temporarily untill my flashing kit arrives
Basicaly my engine is from an e55 with 11:1cr and the tune that was flashed on the ecu was for the c55 10.5:1 cr basicaly a lower compression ratio engine will always have more advance timing in the ignition map after warmup that's why it works on cold temps and doesn't after warm up basically during warmup i have more fuel and more retard to heat up the cats after it heats up ot reverts back to the main ignition map that most likely is causing knock and missfires and wrong afr's
-To solve this issue flashing the correct e55 original file will solve this issue
-Or retarding the timing in the ignition map from the map that is on the ecu now
-Also increasing fuel pressuee worked but that's not the right way to do it
Senior Member
Joined: Feb 2017
Posts: 384
Likes: 41
From: West Palm Beach, FL
'99 C43, '88 560SL
Sorry for the confusion guys as i thought my mechanic used the c43 ecu that came with the engine at first and sorry for making u upset by the questions but u don't learn just by swaping parts or doing a tune somewhere and wasting money from 1 garage to the other, i dont like that and especialy spending 800 euro on a tune while the whole engine costs 800euro dosent make sense
I like to learn diagnose improve understand and find the root cause
Zayed thx a lot man for the constant reply
But now i know what's wrong with the car i still don't have any fault codes that i don't understand on this engine but i know whats the problem and how to fix it already did a few tests and its working now temporarily untill my flashing kit arrives
Basicaly my engine is from an e55 with 11:1cr and the tune that was flashed on the ecu was for the c55 10.5:1 cr basicaly a lower compression ratio engine will always have more advance timing in the ignition map after warmup that's why it works on cold temps and doesn't after warm up basically during warmup i have more fuel and more retard to heat up the cats after it heats up ot reverts back to the main ignition map that most likely is causing knock and missfires and wrong afr's
-To solve this issue flashing the correct e55 original file will solve this issue
-Or retarding the timing in the ignition map from the map that is on the ecu now
-Also increasing fuel pressuee worked but that's not the right way to do it
I like to learn diagnose improve understand and find the root cause
Zayed thx a lot man for the constant reply
But now i know what's wrong with the car i still don't have any fault codes that i don't understand on this engine but i know whats the problem and how to fix it already did a few tests and its working now temporarily untill my flashing kit arrives
Basicaly my engine is from an e55 with 11:1cr and the tune that was flashed on the ecu was for the c55 10.5:1 cr basicaly a lower compression ratio engine will always have more advance timing in the ignition map after warmup that's why it works on cold temps and doesn't after warm up basically during warmup i have more fuel and more retard to heat up the cats after it heats up ot reverts back to the main ignition map that most likely is causing knock and missfires and wrong afr's
-To solve this issue flashing the correct e55 original file will solve this issue
-Or retarding the timing in the ignition map from the map that is on the ecu now
-Also increasing fuel pressuee worked but that's not the right way to do it
Member
Joined: Sep 2018
Posts: 138
Likes: 35
1998 C43 w/ 55 swap Wavetrac LSD and 6-Speed manual
A different thread prompted me to update what I did for my 55 swap. At some point I can add part #s and $s when I have more time. I can do the same for the rear end rebuild w/ the Wavetrac LSD later as time permits.
My donor engine came from a 2002 CLK55.
Here is a synopsis of what I did to the 55 engine during my swap.
I had recent service history on the coil packs and spark plug wires - so just re-used what I had. There were several coil pack connectors that looked suspect - replaced those as well. They are available as a separate part from MB vs. needing to buy entire harness.
I had done a complete trans service w/ the conductor plate a couple months previous. Otherwise - do it with the swap.
Apparently both the head gaskets and exhaust manifold gaskets are pretty robust. Mine showed no signs of issues on either the 200K mile 43 motor (had complete records from original owner) nor the 80k mile 55 motor so I left as-is.
My donor engine came from a 2002 CLK55.
Here is a synopsis of what I did to the 55 engine during my swap.
- upper oil pan re-seal w/ oil dipstick seal
- lower oil pan re-seal
- timing cover re-seal + rubber gaskets behind timing cover
- evaluate timing chains (procedure explained in WIS) - mine all lined up correctly (200K mile 43 engine was on the original chain - 80K mile 55 should be good for long time)
- oil filter housing gaskets
- oil cooler gaskets
- valve cover gaskets
- valve cover breather re-seal and hoses
- all vacuum lines
- intake manifold gaskets
- front main seal - evaluate front pulley - couple year range known to go bad
- rear main seal
- rear main seal housing re-seal (WIS suggests replacing housing - wasn't expensive)
- new water pump
- new thermostat
- new coolant temp sensor
- add water port on back of right cylinder head (43 has - 55 does not)
- new belt tensioner and idle pulley
- new power steering pump
- new power steering reservoir w/ gasket
- MAF sensor seals
- air filters
- motor mounts (use 211 E55K mounts)
- trans mounts (use 211 E55K)
- all coolant hoses - even those to heater core, trans cooler, and expansion tank. A couple are tricky to find and took a while.
- all 16 spark plugs
- flywheel/flexplate bolts - 2 different types depending on year of donor!
- serp belt
- throttle body gasket
- all fuel injector o-orings
- exhaust manifolds to exhaust pipes gaskets
- new radiator (actually did this a few months before - but it all had to come out again)
- new A/C condensor (ditto - and having issues)
- new A/C dryer (ditto - and having issues)
- new A/C compressor (ditto - and having issues)
- starter as it's a pain
- alternator or voltage regulator - at least have it checked
I had recent service history on the coil packs and spark plug wires - so just re-used what I had. There were several coil pack connectors that looked suspect - replaced those as well. They are available as a separate part from MB vs. needing to buy entire harness.
I had done a complete trans service w/ the conductor plate a couple months previous. Otherwise - do it with the swap.
Apparently both the head gaskets and exhaust manifold gaskets are pretty robust. Mine showed no signs of issues on either the 200K mile 43 motor (had complete records from original owner) nor the 80k mile 55 motor so I left as-is.
Last edited by x463; Oct 30, 2019 at 09:22 AM.
Junior Member
Joined: Jun 2017
Posts: 41
Likes: 12
From: Germany
W202 C55 AMG, W202 230K T-Modell, Corvette Stingray C3,
For everybody who's interested...
Here I describe exactly my newly built M113.987 EVO engine which I have installed in my W202 C43.
currently the engine is running with the C43 ECU but will be updated to the 5.5 liter EVO version in two weeks.
this is the forum .https://www.stern-freunde.de/
You have to search for this post from me: Motor SWAP: W202 C43 AMG auf C55 AMG + Überholung des M113.987. 5,5 AMG
Regards
Jens
Here I describe exactly my newly built M113.987 EVO engine which I have installed in my W202 C43.
currently the engine is running with the C43 ECU but will be updated to the 5.5 liter EVO version in two weeks.
this is the forum .https://www.stern-freunde.de/
You have to search for this post from me: Motor SWAP: W202 C43 AMG auf C55 AMG + Überholung des M113.987. 5,5 AMG
Regards
Jens
Newbie
Joined: May 2020
Posts: 4
Likes: 0
C43AMG swapped to C55
M113.986 ECU software
Sorry for the confusion guys as i thought my mechanic used the c43 ecu that came with the engine at first and sorry for making u upset by the questions but u don't learn just by swaping parts or doing a tune somewhere and wasting money from 1 garage to the other, i dont like that and especialy spending 800 euro on a tune while the whole engine costs 800euro dosent make sense
I like to learn diagnose improve understand and find the root cause
Zayed thx a lot man for the constant reply
But now i know what's wrong with the car i still don't have any fault codes that i don't understand on this engine but i know whats the problem and how to fix it already did a few tests and its working now temporarily untill my flashing kit arrives
Basicaly my engine is from an e55 with 11:1cr and the tune that was flashed on the ecu was for the c55 10.5:1 cr basicaly a lower compression ratio engine will always have more advance timing in the ignition map after warmup that's why it works on cold temps and doesn't after warm up basically during warmup i have more fuel and more retard to heat up the cats after it heats up ot reverts back to the main ignition map that most likely is causing knock and missfires and wrong afr's
-To solve this issue flashing the correct e55 original file will solve this issue
-Or retarding the timing in the ignition map from the map that is on the ecu now
-Also increasing fuel pressuee worked but that's not the right way to do it
I like to learn diagnose improve understand and find the root cause
Zayed thx a lot man for the constant reply
But now i know what's wrong with the car i still don't have any fault codes that i don't understand on this engine but i know whats the problem and how to fix it already did a few tests and its working now temporarily untill my flashing kit arrives
Basicaly my engine is from an e55 with 11:1cr and the tune that was flashed on the ecu was for the c55 10.5:1 cr basicaly a lower compression ratio engine will always have more advance timing in the ignition map after warmup that's why it works on cold temps and doesn't after warm up basically during warmup i have more fuel and more retard to heat up the cats after it heats up ot reverts back to the main ignition map that most likely is causing knock and missfires and wrong afr's
-To solve this issue flashing the correct e55 original file will solve this issue
-Or retarding the timing in the ignition map from the map that is on the ecu now
-Also increasing fuel pressuee worked but that's not the right way to do it
Did you manage to sort out the issue?
What a great thread, thanks for everyone who gave input in it. I've re-read it 3 times already
I also have installed 113.986 engine in C43 and i'm running it with the C43 old ecu 023545632, but I switched it to E55AMG with the Star Diagnosis. This gave a better performance comparing to C43 map. Unfortunately it's not possible to switch specific ecu to W202 C55 map.
But I did not notice performance changing between cold and hot. Maybe knock sensors are tightened with incorrect torque and are providing incorrect knock reading?
Actually the best performance and smoothness of the engine torque was achieved when I installed an s500 ecu 0265456832 and W220 5.0l coding.
So it seems that 113980-113984 engines run well with the C43 Ecus, while 113986 are requiring 0295453132 ECUs due to higher compression ratio and possibly different cams.
0295453132 is used on W210, W208 and W220, so it needs to be coded correctly to the engine used. But if its coded to W220 or W210 - ESP will not be able to communicate with the ECU.
Unfortunately I do not have that ecu to read it's data out.
Anyhow, could anyone recommend a tuner or fileservice company, which can upload the performance maps from W220 S55AMG ECU into W202 C43 ECU?
Ive sent the request to Eurocharged already, but would appreciate any other hints to providers.
Last edited by Chezario; May 24, 2020 at 08:36 AM. Reason: spelling
Newbie
Joined: May 2020
Posts: 4
Likes: 0
C43AMG swapped to C55
As per my understanding 113.986 engine should have 360hp from the crank. Are you getting them? Perhaps ecu on your C43 is A0265453132 (newer and better than mine) and it was re-coded with SDS to factory C55 tune?
After fitting the engine, I had a chance to drive in stock W208 CLK55AMG, and my C felt 20-30% weaker. Otherwise- engine was running well
Replacing MAF and switching to S500 tune made both cars feel in the same ballpark.
I'm just trying to get the original 113.986 tune into C43 ecu to make sure that the engine runs to it's full potential. Any advice about it would be great
After fitting the engine, I had a chance to drive in stock W208 CLK55AMG, and my C felt 20-30% weaker. Otherwise- engine was running well
Replacing MAF and switching to S500 tune made both cars feel in the same ballpark.
I'm just trying to get the original 113.986 tune into C43 ecu to make sure that the engine runs to it's full potential. Any advice about it would be great
