need help- c36 swap into a 320CE
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Junior Member
Joined: Feb 2013
Posts: 23
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w124
The problem is that the steering wheel is on the wrong side.
The crank was removed in one of the pictures. Did you take apart 2 different engines at the same time? Could parts have been swapped? Which timing wheel & sensor are you using?
Get us pictures of the cam timing marks. There are guides on how to time an m104, did you follow the instructions for setting the advance mechanism? I don't hear it advance when revved.
How did you plug the EGR line? Did you replace the rubber breather hoses under the intake?
Why do you have oil pressure before starting the engine? Also, is it low on oil? Was the lower engine harness replaced? Which leads me to ask, is the harness on the throttle body good?
There's not much fuel in the tank, how long did it sit? Is it watered down fuel?
The crank was removed in one of the pictures. Did you take apart 2 different engines at the same time? Could parts have been swapped? Which timing wheel & sensor are you using?
Get us pictures of the cam timing marks. There are guides on how to time an m104, did you follow the instructions for setting the advance mechanism? I don't hear it advance when revved.
How did you plug the EGR line? Did you replace the rubber breather hoses under the intake?
Why do you have oil pressure before starting the engine? Also, is it low on oil? Was the lower engine harness replaced? Which leads me to ask, is the harness on the throttle body good?
There's not much fuel in the tank, how long did it sit? Is it watered down fuel?
Crank was removed. the mechanic and I went through the process of checking all internals before installing the engine, because the c36 engine was bought used. the 3.2 engine was never disassembled, so chances of mistakenly mixing up the parts are pretty slim.
Pics of the cam timing marks and the advance mechanism will be uploaded when i get home tonight
EGR line and rubber breather hoses under intake will be a question to my mechanic, will see him sometime this week for answers
I do not know why the oil pressure is acting that way too.. also another question to be asking my mechanic, oil levels are good, according to the dipstick. Will the Handheld tool be able to id a harness short circuit? if so, the Hand held tool never showed any shorts/abnormalities with the wiring
harness. Throttle body is brand new.
I started the job with the fuel tank close to empty. filled her up with a bit before the video. fuel should be good.
Thread Starter
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Joined: Feb 2013
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w124
LOL, was scrolling down to make the same comment, you beat me to it...
Great project BTW... Always had a wish to build my 92CE into a 500CE
I've got an intact and good running SL500 (Salvaged for heavy impact to drivers door) sitting covered in the back yard. very tempted to attempt the swap..
anyway, love this project, good luck
Great project BTW... Always had a wish to build my 92CE into a 500CE
I've got an intact and good running SL500 (Salvaged for heavy impact to drivers door) sitting covered in the back yard. very tempted to attempt the swap..
anyway, love this project, good luck
My dad is in his seventies, and my biggest dream is to have him take it for drive to the country side with me again, or the other way round. thats the story behind it.
some random pics of it before the work started.
Senior Member
Joined: Jul 2004
Posts: 462
Likes: 3
From: Boulder, CO
86 W124
Nice ride! Can't wait to see it in action!
If you removed the smog pump, there's a hole in the block under the exhaust manifold that has to get blocked off too. It's a 1/2 inch diameter hole so lots of air.
The tool won't show the harness damage but all the lights are part of that harness. The good news is that it's cheap and easy to swap. I think if you look at the wire going to the oil level sensor, you'll be able to tell if it's bad.
If you removed the smog pump, there's a hole in the block under the exhaust manifold that has to get blocked off too. It's a 1/2 inch diameter hole so lots of air.
The tool won't show the harness damage but all the lights are part of that harness. The good news is that it's cheap and easy to swap. I think if you look at the wire going to the oil level sensor, you'll be able to tell if it's bad.
Thread Starter
Junior Member
Joined: Feb 2013
Posts: 23
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w124
Nice ride! Can't wait to see it in action!
If you removed the smog pump, there's a hole in the block under the exhaust manifold that has to get blocked off too. It's a 1/2 inch diameter hole so lots of air.
The tool won't show the harness damage but all the lights are part of that harness. The good news is that it's cheap and easy to swap. I think if you look at the wire going to the oil level sensor, you'll be able to tell if it's bad.
If you removed the smog pump, there's a hole in the block under the exhaust manifold that has to get blocked off too. It's a 1/2 inch diameter hole so lots of air.
The tool won't show the harness damage but all the lights are part of that harness. The good news is that it's cheap and easy to swap. I think if you look at the wire going to the oil level sensor, you'll be able to tell if it's bad.
Thread Starter
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w124
A couple things here. Where are you located? I think the 92 coupe had a CIS injected m104 and not a hfm injected m104. Please confirm what was originally in your car. My answers below are assuming you had a late model hfm m104.
You definitely need to run the 3.2 w124 ecu and not any w202 ecu. The w202 ecu only works if you are using the w202 wiring harness (which you are not). A stock 3.2 w124 ecu will work fine as is. You should send off the 3.2 ecu to be chipped by Oliver at Speedtuning. They run about $100 second hand. I know David Hendy has a few 3.2 ecu's available f/s.
You did not say what you did with the air pump from the C36. I am assuming that you swapped over to a belt driven air pump from the 3.2 engine. The w202 C36 engine uses a electric air pump that has a electrical connector from the w202 wiring harness.
You should use the throttle that was on your original 3.2 engine. There is no difference between the 3.6 and 3.2 throttles aside from if it is asr or non-asr.
You definitely need to run the 3.2 w124 ecu and not any w202 ecu. The w202 ecu only works if you are using the w202 wiring harness (which you are not). A stock 3.2 w124 ecu will work fine as is. You should send off the 3.2 ecu to be chipped by Oliver at Speedtuning. They run about $100 second hand. I know David Hendy has a few 3.2 ecu's available f/s.
You did not say what you did with the air pump from the C36. I am assuming that you swapped over to a belt driven air pump from the 3.2 engine. The w202 C36 engine uses a electric air pump that has a electrical connector from the w202 wiring harness.
You should use the throttle that was on your original 3.2 engine. There is no difference between the 3.6 and 3.2 throttles aside from if it is asr or non-asr.
1. I've sent in my original ecu to Oliver, but he said it cannot be programmed.
2. So instead, I've bought a w202 ecu from him, with c36 performance map flashed into it.
3. connected the ecu Oliver sent me, and got the codes,
069 HFM res. trimming plug R16/5 -/ /-, ┌ ┐+
099 CAN: No reception from EFP, TPM
100 CAN: No reception from diagnosis module
104 Fuel safety shutoff recognized
4. IMO (which might be incorrect): is that since the ecu cannot detect the efp and tpm (ASR & egas modules), it shuts the fuel off for safety.
Do you think so too?
Member
Joined: Aug 2011
Posts: 172
Likes: 17
From: SW CT
1995 C36
You likely need to retrofit your car with the correct wiring harnesses from a HFM car for these pieces that are not functioning. If you had a 3.0 CIS engine you are going to have a very hard time sourcing these parts as no one will have any idea what you are talking about.
Please post where you are located, exactly what engine your car came with and what wiring was used on the swap.
Please post where you are located, exactly what engine your car came with and what wiring was used on the swap.
Thread Starter
Junior Member
Joined: Feb 2013
Posts: 23
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w124
You likely need to retrofit your car with the correct wiring harnesses from a HFM car for these pieces that are not functioning. If you had a 3.0 CIS engine you are going to have a very hard time sourcing these parts as no one will have any idea what you are talking about.
Please post where you are located, exactly what engine your car came with and what wiring was used on the swap.
Please post where you are located, exactly what engine your car came with and what wiring was used on the swap.
Engine that came with the car: M104 992 HFM 3.2
Wiring used on the swap: the wiring that came stock with the 3.2 engine
Member
Joined: Aug 2011
Posts: 172
Likes: 17
From: SW CT
1995 C36
I was never able to get the C36 W202 ECU to work with my car. It would stay in limp mode.
What worked was a chipped version of the w124 stock ECU. I believe you can only chip a 1994-1995 W124 ECU as the earlier 1993 versions would not allow this to work.
What worked was a chipped version of the w124 stock ECU. I believe you can only chip a 1994-1995 W124 ECU as the earlier 1993 versions would not allow this to work.
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Thread Starter
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w124
Does your w124 have ASR?
Thread Starter
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w124
Thread Starter
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w124
MBWorld Fanatic!
Joined: Apr 2002
Posts: 2,668
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From: Bahrain
R129 SL55 AMG & W208 CLK55 AMG
Loved reading through your thread.
I did an engine swap on my R129, never needed to swap out ECU.
Hopefully, I can get my hands on a W124 Coupe and start my own project.
Have fun and stay safe
I did an engine swap on my R129, never needed to swap out ECU.
Hopefully, I can get my hands on a W124 Coupe and start my own project.
Have fun and stay safe
Last edited by Ahmed; Apr 25, 2020 at 03:22 AM.
