boldman

I have an electrical problem in my A8L 2004 4.2 petrol.

The cluster went faulty on a rainy day, cluster fuse burned at left side from fuse box. Something more got faulty it seems, car start but go dead after 2 seconds, immo problem. Now i'm search for the electric fault, I have the electric schematics.

when do a run with VCDS then alot modules cannot be reached any more ( Immobilizer) by the gateway. Gateway itself is ok.

So will testing now if the modules like J518/E415 gets its power.
All Relay's (J329) under dash driver seat all tested and works fine, now will test if power from SB25 arrives on the different moduls which now cannot reached included J518.

Question will run the engine without cluster if important J518/E415 works again ?

storka

Probably check for leaks an water damage first

drago_o

most common where water comes in is dash under front window. Under driver feet, where are some control units and central console just under the sunroof.

boldman

I don't have water problems , this I solved this 2 years ago when some water came from my sunroof because drainage hoses where blocked.

Under the carpet all is dry....

boldman

Hello guys,

I can answer the question myself, yes the car start and can run without cluster.

Sheers