Hello.

New to the forum and need some help removing the turbo. I have A6 3.0 tdi 2008. Im trying to remove the turbocharger. I am at the point where I have removed the 5 bolts holding the turbo to the head, but I am still not able to move the turbo. Then I noticed a sixth bolt in the rear of the turbo underneath bolted upside down into the turbo..

Can anyone confirm this? What type is this? 12 point, same as the other 5? Im afraid I have to go in via the wheel arch..


Thanks,

MA

 

Figured it out. The bracket underneath is bolted to the turbo from underneath.

BUT I still can't get the turbo out! Its loose but I cant for the life of me get it out. The bracket underneath where oil return pipe is connected is shaped like a hook and gets stuck when I try to raise the turbo. Any tricks, advice!!!??


Appreciate all help!

Thanks,

MA

 

Yey!

Finally got it out. Removed the left intake manifold actuator/servo and the the coolant pipe/hose to the left of the turbo. Then slide turbo to left and then up


MA

 

Hi MA. How did you remove that bolt from underneath the turbo? Space is so tight, I guess I'll head to the tool store and buy another spline drive that I can cut down and put a spanner onto...
David

 

I have identified that this bolt underneath is actually hex not spline, either 5.5 or 6mm, but is basically inaccessible. Has anyone managed to succeed in removing a Q7 TDI 3.0 turbo without removing the engine?

 

Hello Davo.

On my A6 3.0tdi the bolt underneath the turbo is the same as the ones on top of the turbo. Get a mirror, and take the screw all the way out... that was what I did..

I will try to post some pics tomorrow;-)

 

Hi MA, I got a Flexi inspection camera in there and saw that it's a hex bolt. There's just no room to get a tool in there though. Spent 2 hours on that one bolt, then gave up and reassembled everything. Maybe if I removed the exhaust pipe where it goes to the turbo it might give me enough room, but that also appears challenging due to the location of those bolts. Looking forward to your photos.

 

I forgot to take the pictures today, but I will try to explain what I did on the picture below.

The red arrow is pointed at the metal covering the turbo. I took a socket extension bar with hex tool on it. Lowered it down horizontal (socket pointing same way as red arrow). Then, after using a mirror to put hex into the bolt head. I connected the socket wrench to the bar. The bolt is very long, take it all the way out, be careful not to drop it. (sidenote: there is a hole in the transmission house directly under the turbo. cover it up with paper, so you dont drop anything in there).


I am afraid that the turbo on your Q7 is mounted differently..?

If so I dont know how you are gonna get it out..

Good luck, and sorry for my english

 

Hi MA. Just to close this off, I finally removed that bolt you quoted as "a sixth bolt in the rear of the turbo underneath bolted upside down into the turbo". Unfortunately after so much effort, this was not required, the bolt that needed to be removed was the horizontal one holding the turbo bracket to the engine.
That was not so difficult and I finally got that turbo out. I should have paid more attention to that last photo and description, as in hindsight, it is quite clear now! By the way, the A6 and Q7 appear to be exactly the same.
Cleaned the turbo up nicely and put it back, but the intermittent limp mode problem remains. I guess I need a new turbo actuator.
Thanks for your help with this