2007 A8L...The car shuts off after a few seconds. Looking for the fuel pump (right side) relay and fuse. The manual shows a relay right above the battery in the trunk (checked this one and it is OK, but assuming this is for the left side fuel pump. The manual also shows a relay on the passenger side footwell on the A pillar. This car doesn't have that relay box in that location. Removed the glove box and A pillar trim and it is not there. The fuse that is supposed to be in the Right Side of Dash fuse panel is not there either. The fuse box has an empty slot where the manual shows the fuse belongs.

Any help will be appreciated.

 

The relay carrier was indeed under the carpet on the passenger side. Tested the relay and it was OK. Now, after taking out each fuse and re-installing all of the fuses on both sides of the dash, the car will not start at all, even when I run the right fuel pump with a jumper wire. The VAG now can't read the engine at all. Disconnected the battery for now.

 

If it starts for a few seconds, I think that is the KESSY/ Start authorisation unit. I'm sure I read about it.

 

Thanks for the reply. You may be right....still working on it. I don't know how to reset that. I find the "Start Authorization" controller on the VCDS but it tells me it has no communication with the controller. Still chasing this one.

 

Issue Solved???
I disconnected both battery cables and touched them together, to dissipate any current in capacitors, etc., according to one of the forum posts. It worked, the computer started reading and did some more troubleshooting. Rechecked the Fuel Pump Relay J17, right above the battery in the luggage compartment, and it was bad. I replaced it with a generic one and it worked. So far....