Introduction BMW presents the 745i in July 1983: “More modern technology is hardly possible.” “The 4-speed automatic electric transmission – the first time in history of the automobile.” Share this:TwitterFacebook
Hello, I currently own an 84 745i turbo with 24,000 miles. Do you have a contact number to reach you. Thanks
Hello, you can reach me by email. You’re welcome. Greetings from Finland, Niko.
hi~ i am happy to see this website，i have e23 1985 745(eu) in Taiwan，my 745 have Rebuilding， if i have question can ask you? thank`s~
Hi, for sure you can, just email me. You’re welcome.
I’m Adnan from Bosnia.I have BMW E34 with m106 engine.
Specifications of engine is:
* Garrett Gt35 twinscroll turbo
* Big intercooler
* 76mm pipes from/to IC
* Chip tuning from Jarmo Havulinna
* Adjustable fuel regulator
* O-Ring headgasket
* m30b35 head
* m30b35 intake manifold with throttle on other side
* exhaust manifold one by one cylinder
* Turbosmart external wastegate 38mm
* Two additional fuel injectors in intake
* Greeddy blow off
* Two Walbro fuel pumps
Now I buy new fuel injectors and car shoking from idle to 3500rpm because it is to many fuel in that range.I need reprogram this EPROM,how can I reduce fuel in down side before car get in boost.
You can try free program called tuner pro for changing M106 fuel maps. But i think you would be better of with modern management replacing old factory stuff. Especially if you do not have original automatic in place. With so many nice modifications you are quite off original setup and it can be hard to have it spot on or even close. All the best, Niko.
Hi Niko,have you maybe files of ECU for E23 745i from 1983.That is ECU with 2 EPROM
Hi Adnan, file 1267355088 is for two EPROM ECU, this goes to S722 socket. If yours is different program it as in Reprogram-page. Niko
I need definition file to open it with Tuner Pro.
File with extension xdf if you have it.
Okay, sorry do not have it. Quick solution is to read and combine binaries from both chips and use it as single 64K file. When done modifying split it two again and make new eproms. Good luck !
Do you have any “chips” for Lotus S4S ?
Sorry, i have chips only for BMW M106 engine. Maybe good to look from ebay.
Hi Niko !!
Hope your well,
We’ll car was running great thanks to your help, and now the lower radiator hose destroyed the head gasket and warped the head….
Any recommendations for the up grade and place to order from or any parts you may have?
Nice to hear from you, i am glad you sorted all car issues.
Check ebay.com for second cyl. head, usually there is at least one for sale.
I will email you bit later with more details.
You’re most welcome
Thank you so much….
I’ll be anxiously awaiting your response
I’ really interested in the ECU you have for sale, please get back to me in my email if it is still available. thanks
I just sent e-mail to you.
Air flow meter shipped to USA 01907?
Hi John! I will check what is the shipping cost and get back to you via e-mail.
Hi everyone !
I wonder if lead substitute is needed inside a M106
Mine is stock with 220 000 km.
Previous owner use this product so far.
Thank you very much.
Here is copy of Service-page, see more there:
If head is manufactured on or after september 1984, substrates are not needed according to BMW technical bulletin.
Thank you again
As it is a 1984 mod I need to find the production month to be sure.
By the way, I only put unleaded fuel inside the other big six BMW that I have without any problem so far, it is a 3553cc 1979 6er.
But special valve requires special features I guess on stelit (I believe) exhaut valves of the M106.
You can find production
timeyear on intake side of cylinder head.
Here is link to original BMW bulletin i have referred:
Click to access si_13_01_98_298.pdf
So it is very unlikely you need lead substitute. Do remember M106 is very similar to M30 engine.
I will the check the production period on the cylinder head.
However the “memory effect” of lead left over the valve seats is a tremendously interesting fact!
I will no longer worry about that while enjoying the endless torque sensation of this brilliant engine.
Great to have this informations Niko !
Thanks a lot.
Hello. i`m looking for coolant radiator, for my e23. You have one for sale?
Hello Vlad, i think i have the radiator. I will verify this and contact you via e-mail. It may take few days or a week.
Good news if you want a brand new one :
Hello, do you have any diagrams for identification and layout for vaccum lines and censors on m106..?
Here are vacuum lines from my memory.
Intake side: fuel pressure regulator, engine breather pipe, knock box line, HVAC system (check valve). These all connect to bottom side of intake manifold.
Exhaust side: magnetic valve bottom and two top connections (see Files/BMW M106 repair files/last page).
Sensors are very similar to automatic M30 engines with two exceptions: knock sensors fixed to block (cyl 1&6), this on intake side. Cyl id loop on ignition wire no 1.
I may have forgotten something.
Hello and Good day
I recently started on an m106 swap into a 1984 325e. I salvaged the engine from a 1986 bmw 745I so far I have collected the m106 paired with a ZF 4 Hp22 4 speed automatic both were out of the same 745i. I have the engine harness and transmission harness with shifter and luckily I was able to get the Motronic Ecu and transmission controller box however the wiring for the knock box was cut and I ended up buying a knock box off Ebay. The only other parts I know needed for the swap are engine mount arms and I need to source a front sump oil pan and pickup tube.
I ran into issues finding wiring diagrams with c101 connector pinouts to re pin the chassis c101 plug on my 325e to the m106. If anyone knows where I can get the diagrams for the c101 on the 1986 745i turbo it would be an enormous help.
any help is greatly appreciated
Please see Files/13. BMW M106 repair files, pages 13 and 14.
I think c101 plug is “900 Engine plug” on page 13.
Hope this helps,
Awesome site. Looking to buy the cold start injector
Ari, Many thanks! I will get back to you via e-mail about the injector.