[nickyt]

Most of the rebuild info on these engines will be found in the Audi Forums. Sorry, just the way it is. Same Engine as 2007 Audi Q7, modded version found in Audi RS4. Both suffer from timing defects.

Can you source this part direct from Europe? Is this the part you are looking for?

https://www.ebay.com/i/181651369898?chn=ps&dispItem=1

https://www.eeuroparts.com/Parts/49245/Camshaft-Adjuster-Unit-06F109088J

https://jhmotorsports.com/shop/cata...6-a6-and-c5-allroad-chain-42l-40v-p-2314.html

Trying to force the part to never move... might work or you might get a lot of computer errors that make the entire thing undriveable (limp mode). I would do this only as a last resort.


Reference Materials: (you probably already have)

http://www.volkspage.net/technik/ssp/ssp/SSP_377.pdf

http://www.vaglinks.com/vaglinks_com/Docs/SSP/VWUSA.COM_SSP_921603_4.2L_V8_FSI_Engine.pdf

 

[nickyt]

Yeah, I love it when the manual skips over an important step. Too bad we don't have another FSI V8 rebuilder here, but that is a pretty rare engine in North America. You are the only one, so far.

Thanks for the update.

 

[nickyt]

It sounds like you have checked the supply wiring. Have you double checked the return wiring and the engine grounds?

If the starter relay is activating then the problem is not the ECU. If can can verify that the starter relay is working, then you need to check the supply and return wiring circuit by checking the resistance (ohms) of the entire circuit path. It is time consuming.

Pretty sure it is hard to get to the wires at the back of the starter, but that is the best place to check from. At that point, it is either the starter or the wiring to the starter.

 

[nickyt]

Bummer on the dead starter. Good luck on swapping it out.

 

[nickyt]

It sounds like you have verified that it is necessary to prime the fuel system each time you introduce air into it.

As far as the problem, my best guess is that one of the injectors is out of spec, but has not yet failed.

I would use the electrical multi meter to ohm out each of the injectors on that side of the engine. I would be looking for the injector that reads "different" from the other injectors.

P2146/008518 - Supply Voltage for Fuel Injector Group A: Open Circuit: Open or Short to Ground
Possible Symptoms

No Start

Possible Causes

Fuel Injector(s) Faulty

Possible Solutions

Check Fuel Injector(s)
Check Wiring

 

[nickyt]

I was not expecting to see the injectors in such bad shape. Glad that the error code is gone and the idle is smooth.

What the heck did the previous owner do? Fill up the tank with diet soda?

Fingers crossed for a good engine break in experience.

 

[nickyt]

We’ve seen pictures of the engine apart. How about some photos of the inside and exterior of your Touareg?

That is a thought. What a crazy ride engine has had with this.

He finally got to sit inside of it, probably for the first time in months! >