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Author Topic: ME7.1 HARDWARE CROSS-REFERENCE LIST [UPDATED]  (Read 15672 times)
f-schlauch
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« on: February 23, 2018, 11:31:46 AM »

AUDI                               
                                
VAG Nº   BOSCH Nº   YEAR   TRANSM.   MARKET   CHASSIS   MKB   ENGINE   COMMENT
                                
3B0907551A   0261206114                       V6 2.8 30V   
3B0907551AA   0261206391                       V6 2.8 30V   
3B0907551AB   0261206393                       V6 2.8 30V   
3B0907551B    0261206111                   AMX   V6 2.8 30V   
3B0907551BT   0261207037                       V6 2.8 30V   
3B0907551G   0261206113           US       ATQ   V6 2.8 30V   
3B0907551GX                           V6 2.8 30V   
3B0907552   0261204893                       V6 2.4 30V   
3B0907552AH   0261206777                       V6 2.4 30V   
3B0907552AN   0261207017                       V6 2.4 30V   
3B0907552AP   0261207007                       V6 2.4 30V   
3B0907552J   0261206122                       V6 2.4 30V   
3B0907552L   0261206397                       V6 2.4 30V   
                                
4B0907551AA       01   6mt   NA   A6   APB   2.7T   
4B0907551AD       01       EU   A6   AZA   2.7T   
4B0907551AH   0261207462   02   tip   EU   A6   AZA   2.7T   
4B0907551AK       02   6mt   NA   A6   APB   2.7T   
4B0907551AL   0261207455   02   tip   NA   A6   APB   2.7T   
4B0907551D   0261206106           EU   A6   AJK   2.7T   512K
4B0907551E   0261206017           EU   A6   AJK   2.7T   512K
4B0907551F   0261206378       6mt   EU   A6   AJK   2.7T   
4B0907551G   0261206380           EU   A6   AJK   2.7T   
4B0907551J               EU   A6   AJK   2.7T   
4B0907551K   0261206561   00   6mt   NA   A6   APB   2.7T   
4B0907551L   0261206562   01   tip   NA   A6   APB   2.7T   
4B0907551M   0261206636           EU   A6       2.7T   
4B0907551N               EU   A6   ARE   2.7T   
4B0907551P       01   6mt   NA   A6   APB   2.7T   
4B0907551Q       01   6mt   NA   A6   APB   2.7T   
4B0907551R   0261207002                           
4B0907551R   0261207002       tip   EU   A6   AZA   2.7T   
4B0907551S   0261207003   01       EU   A6   AZA   2.7T   
4B0907551T   0261207005   01   tip   NA   A6   APB   2.7T   
                                
4D0907558   0261206372                       V8   V6 compatible?
                                
4Z7907551   0261206638   01   6mt   NA       APB   2.7T   
4Z7907551B   0261206640       6mt   EU       ARE   2.7T   
4Z7907551C   0261206641           EU   allroad   ARE   2.7T   
4Z7907551D   0261207137   02   tip   EU       ARE   2.7T   
4Z7907551E   0261207134   02       EU       ARE   2.7T   
4Z7907551F       02       EU       ARE   2.7T   
4Z7907551H   0261207138   02   tip   EU       ARE   2.7T   
4Z7907551K   0261207260   01   tip   NA       ARE   2.7T   
4Z7907551L   0261207456   01/02   6mt   NA       APB   2.7T   
4Z7907551M   0261207457   01/02   tip   NA       APB   2.7T   
                                
8D0907551A   0261206110   00   6mt   NA   S4   APB   2.7T   
8D0907551AA   0261207453   02   tip   NA   S4   APB   2.7T   
8D0907551B   0261206109   00   tip   NA   S4   APB   2.7T   
8D0907551C   0261206108   98   6mt   EU   S4   AGB   2.7T   512K
8D0907551D   0261206382   00   6mt   EU   S4   AGB   2.7T   
8D0907551E   0261206376           EU   S4       2.7T   512K
8D0907551F   0261206635   01   6mt   EU   RS4   ASJ   2.7T   
8D0907551G   0261206776   01   6mt   EU   S4   AZB   2.7T   
8D0907551H   0261206774   01   6mt   NA   S4   APB   2.7T   
8D0907551J   0261206775   01   tip   NA   S4   APB   2.7T   
8D0907551K   0261207001   01   6mt   EU   RS4   AZR   2.7T   
8D0907551L   0261207004   01   tip   NA   S4   APB   2.7T   
8D0907551M   0261207143   01   6mt   NA   S4   APB   2.7T   
8D0907551N           6mt   EU   S4   AZB   2.7T   
8D0907551P           6mt   EU   S4   AZB   2.7T   
8D0907551Q   0261207141   02   6mt   EU   RS4   AZR   2.7T   
8D0907551T   0261207452   02   6mt   NA   S4   APB   2.7T   
                                
8E0909052   0261207580                           
8E0909552   0261207494                           
8E0909552A   0261207495                           
8E0909552M   0261208038                           
8E0909552N   0261208039                           
8E0909552R   0261208237                           
                                
                                
SEAT / SKODA / VOLKSWAGEN                               
                                
022906032AQ   0261207382                   AYL   V6 2.8 24V   
022906032AR   0261207384                       V6 2.8 24V   
022906032B   0261206239                       V6 2.8 24V   
022906032C   0261206735                       V6 2.8 24V   
022906032DG   0261208017                       V6 2.8 24V   
022906032E   0261206619                   AUE   V6 2.8 24V   
022906032EK   0261208438                       V6 2.8 24V   
022906032F    0261206736                       V6 2.8 24V   
022906032G    0261206816                       V6 2.8 24V   
022906032H    0261206818                       V6 2.8 24V   
022906032Q    0261206819                       V6 2.8 24V   
                                
066906032A   0261206799                   AQN   V5 2.3 20V   V6 compatible?
066906032AK    0261207378                       V5 2.3 20V   V6 compatible?
066906032AL    0261207379                       V5 2.3 20V   V6 compatible?
066906032AT    0261207640                       V5 2.3 20V   V6 compatible?
066906032BB    0261207641                   AZX   V5 2.3 20V   V6 compatible?
                                
3B0907551BL   0261207014                   AMX   V6 2.8 30V   
3B0907551CH   0261207469                       V6 2.8 30V   
3B0907551Q   0261206387                       V6 2.8 30V   
3B0907551T   0261206123                       V6 2.8 30V   
3B0907552BJ   0261207500                       V6 2.8 30V   
3B0907552BK   0261207501                       V6 2.8 30V   

still pretty incomplete, scroll down for excel chart download
« Last Edit: April 15, 2018, 09:32:41 AM by f-schlauch » Logged

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f-schlauch
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« Reply #1 on: February 23, 2018, 11:33:58 AM »

Finally, I found some time...

There are hardware differences between ME7.1 natural aspirated and our 2.7T ECUs.
I have no idea about the V5/V8 ECU's yet.

If you run these ECUs (ME7.1 NA) on a 2.7T, with a 2.7T flash of course:

- car will run lean even after maxing out fuel trims, most likely MAF scaling (hardware related)
   you can add +25% KRKTE for a base boost only, limp home like ECU
- EGTs short to ground code (I guess resistors on the front PCB missing)
- more?

However, right now I'm using a converted 8E0 909 552N in my 98 S4 since a couple of weeks, no issues so far
« Last Edit: April 15, 2018, 09:27:01 AM by f-schlauch » Logged

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« Reply #2 on: February 27, 2018, 05:42:09 PM »

http://files.s4wiki.com/stock/part-numbers.txt
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« Reply #3 on: April 15, 2018, 09:18:08 AM »

8E0 909 552N - versus - 8D0 907 551C

pictures coming soon, smd soldering required
« Last Edit: April 15, 2018, 09:28:40 AM by f-schlauch » Logged

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f-schlauch
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« Reply #4 on: April 15, 2018, 09:23:03 AM »


awesome, merged
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pizzaschnitzer
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« Reply #5 on: August 23, 2018, 12:18:28 PM »

i flashed a 8d0907551C box file on A6 Automatic ARS ECU 4b0907558A with disabeled EGT Probes.

car runs for more than a year until now.

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360trev
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« Reply #6 on: September 23, 2018, 02:53:30 PM »

What are the real differences between hardware variants? Did anyone ever work that out?

Also has anyone tried reflashing the internal IROM with Minimon and validating if the hardware compatiblity is then much higher ?

... Apparently there are a few different IROM variants floating around so that may unlock a much wider compatiblity. Not tried this myself but its worth asking the question...

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player
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« Reply #7 on: December 05, 2019, 03:29:16 PM »

8E0 909 552N - versus - 8D0 907 551C

pictures coming soon, smd soldering required


Could you share the pics with us?

Thx
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f-schlauch
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« Reply #8 on: December 29, 2019, 10:50:35 AM »

I lost track of this..

there are more differences on the lower part from the rear side of the pcb


pics from
8D0 907 551C -- 1998 S4 B5
« Last Edit: January 19, 2020, 10:36:08 AM by f-schlauch » Logged

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prj
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« Reply #9 on: December 29, 2019, 02:14:37 PM »

What are the real differences between hardware variants? Did anyone ever work that out?

Also has anyone tried reflashing the internal IROM with Minimon and validating if the hardware compatiblity is then much higher ?

... Apparently there are a few different IROM variants floating around so that may unlock a much wider compatiblity. Not tried this myself but its worth asking the question...



IROM is OTP
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player
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« Reply #10 on: January 12, 2020, 05:31:10 PM »

I lost track of this..

there are more differences on the lower part from the rear side of the pcb


pics from
8D0 907 551C

nice work. so basically those components are missing and if we put them in place we get a fully functional ecu?

thx
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fluke9
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« Reply #11 on: January 13, 2020, 05:12:56 AM »

- car will run lean even after maxing out fuel trims, most likely MAF scaling (hardware related)
   you can add +25% KRKTE for a base boost only, limp home like ECU
- EGTs short to ground code (I guess resistors on the front PCB missing)
- more?

1.) There is a hardware voltage divider for the MAF input and depending on the "Parts list" used in manufacturing it is populated or not.
     If needed i could measure out which resistors need to be removed.

2.) EGTs are fed into the Knock IC, and yes you are probably right, the voltage divider resistors for that are also not fitted.
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player
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« Reply #12 on: January 13, 2020, 11:42:07 AM »

1.) There is a hardware voltage divider for the MAF input and depending on the "Parts list" used in manufacturing it is populated or not.
     If needed i could measure out which resistors need to be removed.

2.) EGTs are fed into the Knock IC, and yes you are probably right, the voltage divider resistors for that are also not fitted.

Yes. I would be interested to see. If you could measure what resistors need to be removed that would be perfect.
Also, Can you show a picture of a board with that voltage divider?

Thanks a lot for those informations!
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fluke9
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« Reply #13 on: January 15, 2020, 12:42:40 PM »

There are ME7.1 Schematics somewhere on the forum.
The schematics show that divider if you follow A_HFM or how the input was called.

The schematics show always all options so they sometimes look like a short circuit.
There are Top and Bottom silkscreens too in the ME71.zip so you can see which R is where.

There is a parts list for every ecu number which decides which parts are then populated or not, so the base circuit board is quite versatile,
However there are not may partslists out i guess...

In German you call them Stückliste.
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nyet
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« Reply #14 on: January 15, 2020, 01:24:23 PM »

In German you call them Stückliste.

For English speakers the equivalent terminology is stuffing variants of BOMs
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ME7.1 tuning guide (READ FIRST)
ECUx Plot
ME7Sum checksum checker/corrrector for ME7.x

Please do not ask me for tunes. I'm here to help people make their own.

Do not PM me technical questions! Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your experience.
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