Engine electrics

[gideong]

Gents (and any ladies)

I have a B8 3.0ltr avant se. It's a lovely motor. Just purchased, sold as seen.

The cars been ace for 3 weeks then I adjusted the passenger wing mirror and got a dynamic steering fault light come up. 10 seconds later a EPS light. Now they won't go. Looking at the car there are a few nibbles in the air intake plenum , nothing gone through but not to say there couldn't be issues deeper in the loom. A specialist in bradford had a quick look and suggested main dealer after his diagnostic said the dynamic steering module had failed. He spoke to a pal at Audi who said they never replaced one and couldn't tell him where it was because they never replaced them, "they don't fail".

So today main dealer on canal Rd :Audi. I told the lady the above and that it might need wiring looking at. She rang me after 8 hours and told me the same back, but that it could be very costly trying to iD a loom break.

I am a controls engineer. All be it building but I know how this stuff works but I don't know about the Audi diagnostic. I am presuming the port in car is into the Cars ecu which I am assuming at the moment that mine is not communicating with the dynamic steering module and as such can't analyse the steering position which is causing the EPS failure. Any good ideas welcome. Tomorrow I am going to have to suggest a direction to Audi. Replace the loom? Pull the dash out? Am I right in assuming Audi cannot connect to each module or even plug into the connectors at the modules to test the wiring for continuity?

Anyone know where to get the wiring schematic for a motor like this? Any really good auto electricians on this site local to leeds? This isn't just a plug in and fault clear. It's a rodent hunt.

 

[Stonefish]

You could try ErWin Audi. I've used ErWin Volkswagen recently and it's 7 euros + VAT for an hours access. You can download a pdf of the current flow diagrams which shows the wire colours and connector pinouts. The repair guides will probably show where the module is.

 

[rum4mo]

After getting some nibbles on the foam at the back of the engine compartment, I have, always parked my car in the garage with the bonnet open, beside a powered rodent annoyer, with many baited traps around and other bait to draw them in and kill them. I did catch a couple, been in this house for over 20 years and never ever had that happen before, maybe a radicalised field mouse tribe? Ibiza parked outside the garage also got nibbled, say material, Polo in garage beside the S4 does not use this foam material and did not get attacked!!! Hopefully that nibbling has been confined to that rubber seal and/or foam seal and that what is wrong with your car is something completely different - I had this worry as the Ibiza was draining its battery maybe after that attack, but it turned out that the battery draining was what I hoped it would be, ie duff S/W loaded into the BCM at initial build, eventually I managed to get SEAT to source a relevant S/W patch/update and that problem vanished.

Edit:- As said, Erwin is the way to go for official schematics etc, only problem that you might encounter when registering is the "form" of home address that we in UK use, I did manage to resolve that somehow and that could be if you have trouble reg'ng what your problem is as that site will not clearly explain that that is what is wrong!