Accessing the ECUs in a RHD C4 UrS

[UrS4boy]

I want to use some of these photos (re-found from an old work laptop mirror) in a few posts so I thought that I would post them up here. Might be somebody that will find this useful. Some of the photos will get used in other posts.

Access is similar to this LHD ECU access pdf - in the upper passenger footwell, just on the left side of the RHD car. Part way there, it will look like this (note: This example UrS6 is also an Autobox car)


Unlabeled base photo courtesy of Popdemonic.

Once the carpet is pulled back, you would see this (except without the labels ):


Unlabeled base photo courtesy of Popdemonic.

Here is a better shot of the UrS6 moisture trap (note "Tee" for boost gauge):


Unlabeled base photo courtesy of Popdemonic.

An UrS4 would have the moisture trap out in the engine bay as detailed in this UrS Moisture Trap Info post.

Here is a closer look at the Autotrans ECU and the fuses above the Motronic Engine ECU:


Unlabeled base photo courtesy of Popdemonic.

An UrS4 would have similar but different fuses, as detailed in this Above the ECU Fuses Callout post.

Here is a good shot of the Motronic "551D" AAN engine ECU. (We only got the 551AA in North America) (PN list provided by Dmitri (prj) on the S2Forum)(Thanks)


Unlabeled base photo courtesy of Popdemonic.

Pin-outs for the ECU would be as detailed in this UrS4/S6 Motronic ECU Pin-out list (with links to info about the connected devices) post.

Hope somebody finds this useful.

[UrS4boy]

BTW: If the unlabeled base photos used above are yours or you know whose they were, let me know and I will add a credit to them.

UPDATE: Just found out they are Popdemonic's (from Thailand).

[popdemonic]

Anyway,that was the stock location for the moisture trap Dave.

[UrS4boy]

Anyway,that was the stock location for the moisture trap Dave.

Pop: Thanks. Were the yellow hoses stock or aftermarket?

[popdemonic]

aftermarket silicone hose Dave.Stock hose is exactly the same as LHD car.