EWS for M52

[tomson]

Right i see.

TBH id want it in and running first then if i was to do things like what you've done pay someone to do it after

So back to this EWS headache, how does it connect to the engine loom/ECU on an S50?

[ian332isport]

So back to this EWS headache, how does it connect to the engine loom/ECU on an S52?

You only need to run a single wire from the EWS system to the ECU, and this is done through the X20/C101 connector (main engine to body plug).

As for the rest of the EWS system, you only need to hook up about 4 or 5 wires to get it running, and most of these are simply power and ground. As long as you get the connector for the EWS components from an EWS equipped E36, it's simple to make a small wiring harness to plug it all in. You certainly don't need the entire under dash loom from the E36 or anything silly.

Ian.

[glenn]

So back to this EWS headache, how does it connect to the engine loom/ECU on an S52?

You only need to run a single wire from the EWS system to the ECU, and this is done through the X20/C101 connector (main engine to body plug).

As for the rest of the EWS system, you only need to hook up about 4 or 5 wires to get it running, and most of these are simply power and ground. As long as you get the connector for the EWS components from an EWS equipped E36, it's simple to make a small wiring harness to plug it all in. You certainly don't need the entire under dash loom from the E36 or anything silly.

Ian.

you make it sound so easy ian

[tomson]

So back to this EWS headache, how does it connect to the engine loom/ECU on an S50?

You only need to run a single wire from the EWS system to the ECU, and this is done through the X20/C101 connector (main engine to body plug).

As for the rest of the EWS system, you only need to hook up about 4 or 5 wires to get it running, and most of these are simply power and ground. As long as you get the connector for the EWS components from an EWS equipped E36, it's simple to make a small wiring harness to plug it all in. You certainly don't need the entire under dash loom from the E36 or anything silly.

Ian.

You do make it sound simple!

Ive spoken to the vendor again and he has no ignition key so im assumimg all this is in vain and ill need to source a complete set up from another S50? The engine has come from a Z3M, does that make a difference and will i need to get a new engine ECU whick is linked to the EWS set up?

Ian ive been advised allready your the man with all the knowledge on the S50 conversion so i hope you dont mind but if i buy this lump there is bound to be some PM's coming your way

Tom

[Demlotcrew]

Do it Tom!

An engine loom from a Zm is much better as you dont need to extend the wires for the ECU to locate it into the stock E30 site.

EWS is a piece of cake and now you can re-program keys and EWS components from different cars.

HTH

[tomson]

Im almost 100% sure im going to Andrew, at the price ive been offered this engine, gearbox, prop, diff, rad, loom & ECU etc for id be silly not to!

I will need to sort this EWS thing, there is a broken engine mount and no oil cooler so these need to be priced up which i will have time to do this weekend

[old_skool]

The engine mount arms are about £23, you won't use the S50 cooler anyway - use the 325 cooler.


Job jobbed.

[ian332isport]

and now you can re-program keys and EWS components from different cars.

Certainly in theory. In practice, it doesn't seem that easy unless you have a suitable donor vehicle to put the components into to do the alignment.

We tried all sorts of things to align a non matching EWS set on Ste's car, but failed miserably. I don't know what the coding software needs to see on the car in order to work, but it's more than just the EWS module, ECU. I did try hooking up an instrument cluster as well, but that didn't help either. The cluster was from an M3 Evo, so it's possible the 328i ECU wasn't happy with it.

Ian.

[Andyboy]

Why would you need EWS?? What a massive pain in the arse. A non EWS M52 engine loom would do the job and allow the 325i inlet manifold, TB and TPS to hook straight on. As I understand it one of the problems with tuning the 328i is that the 325i throttle body/TPS is not compatible with the 328i loom so you'd need an expensive big bore TB and adaptor plate.
A 325i/525i inlet manifold, ECU and loom is going to be 50-100 quid at a breakers and the ECU would need remapping anyway.

Anybody want a twin vanos M52TU head? It only fits the TU and M54 and as such is utterly uselsss!

[ian332isport]

Andy,

I see what you are saying, but we are talking 3.2 S50 here (well the last little bit anyway), so the alternative loom is not an option.

EWS really isn't an issue if you get all the correct components from the donor vehicle. It only gets tricky when some or all of the matched parts are missing. I could wire an EWS system into an E30 quicker than you could swap an engine loom

Ian.

[tomson]

Having read up on this EWS on the net today im a bit more up on the situation!

Can anybody point me in the direction of a COMPLETE set in a breakers or if they have some for sale that would be cool

Cheers

[Andyboy]

Ahhhh.....I thought we were on about M52's!

[old_skool]

Having read up on this EWS on the net today im a bit more up on the situation!

Can anybody point me in the direction of a COMPLETE set in a breakers or if they have some for sale that would be cool

Cheers

Tom,

Why don't you order a replacement key and EWS module from the dealer to your chassis number. That should Match the ECU and problem solved.

iirc the transponder and loop, EWS module, key and plugs cost around £140.00, if it's ordered to code then it should work fine.

[dasparkybad]

Sorry but buying new will not work
when you buy a new ews module from bmw it has to be coded to the car and aligned to the dme the only thing that will work is an ews,key and e.c.u from a running vehicle that has already been through this process buying new and fitting it will not work if you cannot get a full set then i'm afraid you will need to have it coded and aligned whether new or second hand by the way if you were going to buy second hand it does not have to come from the same model of car i.e i have a m52 2.8 in my e30 but the ews and key came from a 318 is e36 carsoft can perform these functions maybe a zoner in your area who has one can help you out

[DanThe]

So the key is not matched to the ECU?

[ian332isport]

So the key is not matched to the ECU?

The key is hard coded to the EWS module. This cannot be changed. You can align a different ECU to an EWS module though. The key itself is not matched to the ECU.

Ian.

[tomson]

So the key is not matched to the ECU?

The key is hard coded to the EWS module. This cannot be changed. You can align a different ECU to an EWS module though. The key itself is not matched to the ECU.

Ian.

How would i go about aligning my ECU to an EWS set up from a different car Ian?

[ian332isport]

How would i go about aligning my ECU to an EWS set up from a different car Ian?

That's the tricky bit

Ideally you would find a friendly E36 owner (with a similar year/model) and fit them in his car to be aligned by either the dealer, or someone with something like the Carsoft software/hardware to do it.

In theory, you should also be able to wire it all into the E30 and get it aligned by one of the same two methods above. In practice (I've tried), it doesn't appear to be that simple. I had a go at this on Ste's M52 conversion, but was unable to get the coding routine to complete. I'm led to believe that you also need to have the E36 instrument cluster wired in as well, but I cannot yet confirm this. I did try hooking up an M3 Evo cluster, but this did not help. It's possible that the 328i ECU and the M3 cluster were not compatible, but without a 328i (M52) cluster to try, I don't know for sure.

Given a non matching S50B32 (M3 Evo) ECU and EWS module (with matching key), I would be happy to try it on my car (I do have the matching M3 cluster).

Ian.

[tomson]

How would i go about aligning my ECU to an EWS set up from a different car Ian?

That's the tricky bit

Ideally you would find a friendly E36 owner (with a similar year/model) and fit them in his car to be aligned by either the dealer, or someone with something like the Carsoft software/hardware to do it.

In theory, you should also be able to wire it all into the E30 and get it aligned by one of the same two methods above. In practice (I've tried), it doesn't appear to be that simple. I had a go at this on Ste's M52 conversion, but was unable to get the coding routine to complete. I'm led to believe that you also need to have the E36 instrument cluster wired in as well, but I cannot yet confirm this. I did try hooking up an M3 Evo cluster, but this did not help. It's possible that the 328i ECU and the M3 cluster were not compatible, but without a 328i (M52) cluster to try, I don't know for sure.

Given a non matching S50B32 (M3 Evo) ECU and EWS module (with matching key), I would be happy to try it on my car (I do have the matching M3 cluster).

Ian.

Right thanks, ill bear that in mind.

This is where my search begins, ive been given the whole loom from the Z3M to see if all the relevant EWS bits are there! Any pointers anyone! lol!

[Yaninnya]

I don't remember how it is in E36 but in E46 DME is coded for the car the same as EWS. You can't use DME from another car. EWS is conecting with DME and if the codes zre different it will not allowed to start.
Jan

[dasparkybad]

you do not need an instrument cluster to align ews and dme i did mine with the engine loom powered up from a booster pack while my engine was still on the workshop floor you must have had either faulty wiring or a faulty control unit problem
an e46 dme will only align with an ews with the same chassis no. this unit is ews 3 which is a completely different kettle of fish to the e36 set up which is ews 2

[Gabi_323i]

i have a 323i engine WBACB71000AP54084 and i have only the ecu and ews module, what do i need besides the key?

[ian332isport]

i have a 323i engine WBACB71000AP54084 and i have only the ecu and ews module, what do i need besides the key?

The only other coded bit you require is the key. Apart from that, you will need the small transmit/receive module, and the loop antenna that goes around the ignition barrel.

Ian.

[Gabi_323i]

thanks a lot! anyone have pics of the missing bits? where is the trasmit/receive module and loop antena located?

[DanThe]

thanks a lot! anyone have pics of the missing bits? where is the trasmit/receive module and loop antena located?

First page of this thread..

[Gabi_323i]

i saw that picture but i don't know that was the sensor antena :">