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#1
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D2 S8 AQH (ME7.1) ECU Vs C5 S6 AQJ (ME7.1) ECU
G'day all!
I'm in a bit of a dilemma. I discovered that my S6 wiring is ME7.1, so not compatible with the S6 ME7.1.1 ECU, without a whole lot of re-pinning. I am looking to purchase an S6 (AQJ) ME7.1 ECU from Audi. I just wondered if the S8 (AQH) ME7.1 ECU would be compatible? Is the S8 ECU plug and play in the S6 motor, and are there any benefits in this? The S8 ECU is around £43 more than the S6's, and I'm ordering from TPS tomorrow. Many thanks in advance.
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2006 Audi A8 D3 Quattro Sport 4.2 TDI - Silver, Family Oil Burner. 2000 Audi A4 Quattro Sport 2.5 TDI - Santorin Blue, S8-Powered DTM Race Car Build In Progress. 2000 Audi A4 Quattro Sport 2.8 30V - Pelican Blue, RS4 Widebody, D3 4.2 01E, High-Spec B5 Build In Progress. |
#2
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I am buying brand new, as I am going with a factory manual ECU, rather than an automatic variant that has been coded for manual.
This soft coding only prevents the automatic ECU from looking for the absent TCU, thus not throwing a CEL. It does not however improve drivability, or prevent the rpm from being too high at idle, or allow the rpm to drop quickly or smoothly between shifts. Used manual S6 ECU's are not easy to come by, even in Germany.
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2006 Audi A8 D3 Quattro Sport 4.2 TDI - Silver, Family Oil Burner. 2000 Audi A4 Quattro Sport 2.5 TDI - Santorin Blue, S8-Powered DTM Race Car Build In Progress. 2000 Audi A4 Quattro Sport 2.8 30V - Pelican Blue, RS4 Widebody, D3 4.2 01E, High-Spec B5 Build In Progress. |
#3
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Any ideas, anyone?
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2006 Audi A8 D3 Quattro Sport 4.2 TDI - Silver, Family Oil Burner. 2000 Audi A4 Quattro Sport 2.5 TDI - Santorin Blue, S8-Powered DTM Race Car Build In Progress. 2000 Audi A4 Quattro Sport 2.8 30V - Pelican Blue, RS4 Widebody, D3 4.2 01E, High-Spec B5 Build In Progress. |
#4
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Too techy for me, sorry.
Good luck though
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Ray at Wigan Pier 2014 A8L D4 4.0TFSI Gold (Sticker says "Beige") Can't leave you in a black smoke cloud anymore.. In progress, Nothing left to do. Gone 2004 A8 D3 3.0 TDI. Ebony Pearl Black (with little bits of other colours and glitter) |
#5
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I have no idea, except for following curious differences:
S6 40V 4.2 produces 335hp, is it just de-tuned or is there a mechanical reason for this? S6 40V 4.2 has and electric fan instead of the viscous fan, would this different coding be reflected on its ECU and would it result in a different pin-out? |
#6
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Quote:
Quote:
The electric fan is probably a separate circuit, the same as the S8 and B5. |
#7
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Quote:
Quote:
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2006 Audi A8 D3 Quattro Sport 4.2 TDI - Silver, Family Oil Burner. 2000 Audi A4 Quattro Sport 2.5 TDI - Santorin Blue, S8-Powered DTM Race Car Build In Progress. 2000 Audi A4 Quattro Sport 2.8 30V - Pelican Blue, RS4 Widebody, D3 4.2 01E, High-Spec B5 Build In Progress. |
#8
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I've ordered a manual S8 ME7.1 ECU (AQH) from TPS.
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2006 Audi A8 D3 Quattro Sport 4.2 TDI - Silver, Family Oil Burner. 2000 Audi A4 Quattro Sport 2.5 TDI - Santorin Blue, S8-Powered DTM Race Car Build In Progress. 2000 Audi A4 Quattro Sport 2.8 30V - Pelican Blue, RS4 Widebody, D3 4.2 01E, High-Spec B5 Build In Progress. |
#9
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On which car you want to install it?
I'm done it many time this procedures, sorry but just now see the thread.
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Now A8 D3 4.2 40v Supercharged!!! EX: A/S8 D2 4.2, moded done: Manual gearbox, Recaro seats, RNS-E + OEM Bluetooth with working MFSW, S8 converted engine, S8 susspension, Solar roof, RS6 brake setup and bigger servo and pump Future mod: RS 4.2tt engine. |
#10
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S6, ME7.1 manual.
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2006 Audi A8 D3 Quattro Sport 4.2 TDI - Silver, Family Oil Burner. 2000 Audi A4 Quattro Sport 2.5 TDI - Santorin Blue, S8-Powered DTM Race Car Build In Progress. 2000 Audi A4 Quattro Sport 2.8 30V - Pelican Blue, RS4 Widebody, D3 4.2 01E, High-Spec B5 Build In Progress. |
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