Tips on changing injectors S2 ABY. Remove originals and fitting Bosch 440cc

[orsum]

Having completed the Turbo upgrade its now the turn of the injectors.

Anybody have a write up, any tips or advice.

Turbo job was bad enough. Hope this goes a bit better.

Thanks

[UrS4boy]

You might want to read this for some hints (like buying and installing new injector inserts and O-rings at the same time)

AAN Intake Removal R&R (with injector insert replacement):

http://forums.quattroworld.com/s4s6/msgs/266127.phtml

[orsum]

Yep read that and I was hoping the original inserts were still ok. Will read it again about another 10 times.

I did buy an original set of inserts from Audi ready to put in if the originals fitted are damaged.

Are these a normally changed when fitting new injectors.

[orsum]

As far as I can tell the existing injector inserts are still ok (not leaking) tempted to leave them alone and just replace only the injectors.

Nice link I just read it again. Still not sure if I need to replace the inserts. New Bosch injectors come with O-rings.

[newsh]

Disconnect the electrical plugs and hook them out of the way.
Then just undo the 2 bolts holding the fuel rail down and lever the rail up, it will pull all the injectors out of the IM.
One at a time, remove the clips holding the injectors to the rail, pull the injector out, replace with new injector and reinstate clip.
Always grease the O rings before plugging in so they slip in easily.
When all injectors are changed, grease O rings and IM insets and push the rail back in place.
Replace the 2 bolts.
Plug in.
Change ECU or it will run well rich.
Start car.
Grin.

[orsum]

Testing the ECU first. If car starts it will run lean for a few seconds I hope its not an issue. Then the injectors will then be installed. Providing the inserts are ok.

Grin Grin

I cannot wait.

[adam g]

Good call to leave the inserts alone if they aren't leaking. They have a habit of falling apart during removal with the pieces disappearing into the engine.

Sent from my D5803 using Tapatalk

[orsum]

I definitely hope they are all ok.

[RAOUL]

So PTFE tape to reseat new ones? I have some Hylomar Blue universal non setting gasket/joint compound?

[orsum]

I just put them in without PTFE or any join compound. They seated fine.