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Old 03-17-2013, 09:11 AM   #1
Hakentt-MS41.1
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Exclamation dual vanos engine into 318ti

Dual vanos engine into 318ti

I am able to program MS42 and MS43 engine computers from E46 so that M52TU and M54 engines can be swapped into other chassis with minimal wiring effort.

These dual vanos engines are getting cheaper and gaining popularity in getting them swapped into E30 , E36 or some other BMW. In my case I did the swap to E36,
Assuming you bought some good 99-04 dual vanos engine with complete harness and ecu with relay tray, and want to do a swap into your E30, you will also need X60004 harness plug that goes from the DME to chassis of donor car, the rest of the wiring is pretty much integrated with the engine. You will also need electronic gas pedal with electrical plug from donor car if you have MS43 dme engine. And that’s about it. The rest of the components is pretty much the same as doing M50 swap. This thread will focus on wiring and engine management system only.

Your engine harness will have few connectors that plug into chassis and those are:



4 pin connector:
1: empty
2: switched 12+ from ignition switch (red/white wire) this turns on DME relay
3: reverse light switch on transmission (yellow/blue wire)
4: reverse light switch on transmission (white/green wire)

8 pin connector:
1: starter run wire from ignition switch (black wire)
2: oil level sensor switched 12+ from ignition switch (brown/green wire)
3 4 5 6 7 8 are all empty

The dual 2 pin connectors with red wires are all 12+ constant battery
You will have to wire fuel pump relay the same way it is on E36, it is just basic 5 pin light green relay. The DME and Injectors relay is already integrated into MS42/MS43 harness.

40 pin X60004 plug wiring:
1: alternator charge indicator signal, [run this wire to instrument cluster battery light]
7: ground wire for electronic pedal to pin 1 [MS43 only]
8: electronic pedal signal to pin 4 [MS43]
9: voltage supply for pedal pin 5 [MS43]
10: fuel pump relay activation ground wire [wire this to fuel pump relay, sends ground signal to activate fuel pump relay coil]
11: oil pressure warning light [wire to instrument cluster oil pressure light]
12: ground pedal sensor to pin 2 [MS43]
13: signal pedal sensor to pin 6 [MS43]
14: voltage supply for pedal to pin 3 [MS43]
17: RPM signal to instrument cluster
26: switched +12 from ignition switch
32: K-line to pin 7 of OBD2 diagnostic plug

That is it for X60004 connector, no need to connect any other wires
Engine temperature sensor will have to be wired independently and installed somewhere on the cooling system.
There will also be a ground wire brown color that you must bolt to the chassis ground. Also fat wire from starter needs to go to battery 12+, also don’t forget to run one power wire from battery + outlet to the fuse box.
DME location can be left there to sit on top of the fuse box but it does not look pretty. 99-00 MS42 engines will work with E34 throttle cable but the end of it needs to be shaped into a ball to fit the throttle linkage. It is still electronic throttle, cable only operates two wish sensors inside the body. So MS42 and MS43 and almost the same, and M52TU and M54 is basically the same engine. You will need exhaust manifolds from 96-99 E36 6cyl as well as the engine mounting brackets, E46 stuff does not fit, it is too big. There is a fuel tank vent hose that plugs in the back of the manifold, that needs to be plugged, then you just run the fuel tank vent line to recirculating valve that is located behind oil filter housing
I am not running heater lines on my engine, but if you have to, the rear one will plug in just fine, you have the install a T on the front outlet then run it back to the heater and the other side of the T to the radiator bottle. AC compressor will have to be triggered manually the same way it is with M50 swaps. Thermostat outlet lines, just cut the clamps and remove quick connects from the E46 hoses and plug them on the thermostat housing then cut to fit E36 radiator hoses, hoses must be Gates brand. Remote fuel pressure regulator must be installed, 96+ E36 3.5bar one also works and that’s what I am using.
That’s about it, the rest is the same as if you were doing M50/s52 swap.

Donor E46:

I am also using E46 power steering lines without cooler. As you can see in the photo dual vanos engine package installed, and you see the plastic DME holder with relays, that’s how you should get your engine, if you get it with harness all cut up then it may be a problem getting the right harness.



You can see here the S52/M52 exhaust manifolds with 02 sensors installed, then the lines wired to the block so that they don’t touch the manifolds. Rear 02 sensors are not required with my programming.



Testing and experimenting:


Video of engine running smooth:
http://www.youtube.com/watch?v=Pec3tbiQp_g

List of components removed with my programming:
EWS system
Rear oxygen sensors
Catalytic converter monitoring
Secondary air pump system, pump relay and monitoring
Fuel tank pressure monitoring and module
DSC ASC EGS CAN bus communications
Vehicle speed sensor
Radiator temperature sensor, and fan module
Clutch switch, brake switch, cruise control MFL steering wheel
Steering angle sensor
And few more that I can’t remember now, but it all runs great and there are no codes. You won’t be able to have check engine light feature with MS42/MS43 because it requires the whole CAN BUS cluster and because E36 does not have that, you can't pass emissions test.

Last edited by Hakentt-MS41.1; 03-17-2013 at 07:45 PM.
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Old 03-17-2013, 04:28 PM   #2
J!m
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This looks encouraging!

With you "lobotomised" DME, how is the behavior at the under dash OBD port?

I ask on behalf of those considering this who may have to undergo state emission testing.

If you can can effectively remove all these system checks without causing errors, it is a commendable accomplishment. However, if your changes exclude receiving a can bus error when one occurs (for example) the long term serviceability of the mods may not be so great. An error would cause full DME replacement and reflash because the visibility (cause-affect) on the error seems compromised.

Making it work is great but long term serviceability and reliability are very important to someone like me who is not building a track rat...

If your DME mods are as nice as I hope them to be, I might be sending you a DME to work on.

Ps this might be a start of a new thread for what you are doing which is outside scope of the q&a thread for the E36 OBD-II swap manual I produce...


EDIT: I see you edited your post after my reply and confirmed your solution will not pass emission testing as I suspected. Thank you for editing your post to include that, as many potential swappers are not focused on that until they can't drive a car they invested thousands of dollars on due to emission test failure...
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Last edited by J!m; 03-23-2013 at 03:10 PM.
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Old 09-28-2018, 06:29 PM   #3
Mikesupe318
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I know this is an old post but I'm having trouble getting my m52tub28 to start. I swapped the m52tu into my 318ti using your write-up. I have a ms42 dme and ews delete and it's a 5 speed. The 318ti was an auto Is there a chance I have a different wiring harness I don't have the 8 pin plug. Mine is a 2 plug connector one of the connectors have 2 pins one being black for starter and green and brown oil sensors I'm assuming. The other is the 4 pin plug just like you described. So if I had the motor on the floor and hooked up grounds and i wire the engine using your write up the motor should start? It was a running drive car before i pulled the motor. I've tried a few times at getting it running with no success. Is there anything im over looking and doing wrong? I've wired a few motors before and never had this much trouble but they were 1jz and 2jzs. Any helo would be awesome.


I attached pictures of the two plugs on my harness.
Attached Thumbnails
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Last edited by Mikesupe318; 09-28-2018 at 06:34 PM. Reason: Added images
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Old 10-16-2019, 03:50 AM   #4
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Mine is the exact same as you posted. Also, with no luck starting. Have you sorted out the issue?
EWS deleted by reputable sources.
Originally 5 speed 1996 318ti chassis
M52tub28 99í engine, x60004 plug, 12v battery wire, relay tray, DME all came from the same donor chassis.
Ms42 DME

Decently new battery installed with a charger attached on 2 amps Incase it was a low voltage issue was also ruled out.

Wired to diagram using original X20 pig tail, diagram and connections double checked for accuracy.

My 2 plugs are as pictured in this quoted reply as well.
Fuel pump relay wired using factory e36 power and ground distribution using pin 10 @ X60004 to activate key on.

Iím ASE certified and have been working as a R&R tech as well as a tech/fabricator in the aftermarket and performance industry for almost a decade. Iíve got FSM pin outs for the MS42 as well as X20 for the 96 318ti chassis to help aid in this conversion as well, can post if needed?

ANY help is appreciated.

Quote:
Originally Posted by Mikesupe318 View Post
I know this is an old post but I'm having trouble getting my m52tub28 to start. I swapped the m52tu into my 318ti using your write-up. I have a ms42 dme and ews delete and it's a 5 speed. The 318ti was an auto Is there a chance I have a different wiring harness I don't have the 8 pin plug. Mine is a 2 plug connector one of the connectors have 2 pins one being black for starter and green and brown oil sensors I'm assuming. The other is the 4 pin plug just like you described. So if I had the motor on the floor and hooked up grounds and i wire the engine using your write up the motor should start? It was a running drive car before i pulled the motor. I've tried a few times at getting it running with no success. Is there anything im over looking and doing wrong? I've wired a few motors before and never had this much trouble but they were 1jz and 2jzs. Any helo would be awesome.


I attached pictures of the two plugs on my harness.
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