https://www.youtube.com/watch?v=i6TZ2bnlAjI

Dieselmeken posted a video showing how to fix the Alda seal... it so simple...

I'm going to have to do this and put mine back on.

would this apply to om617 also?

Now that's useful info.

Good info. So if this is leaking, the piston in the ALDA will not push down when pressure(boost pressure) is applied and then in turn not letting the injection pump richen the mixture under boost, meaning less power output, correct?

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1985 300TD Turbo Euro-wagon
1979 280CE 225,200 miles
1985 300D Turbo 264,000 miles
1976 240D 190,000 miles
1979 300TD 220,000

GONE but not forgotten
1976 300D 195,300 miles
1983 300D Turbo 175,000 miles

http://i42.photobucket.com/albums/e3...e485-1-2-1.jpg

I have read those Philips screws are very hard to undo, and you end up stripping them. Someone recommended an old fashioned manual impact hammer.

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1968 220D, w115, /8, OM615, Automatic transmission.
My 1987 300TD wagon was sold and my 2003 W210 E320 wagon was totaled (sheds tear).

In the video it looks like he used a cordless impact driver, so you could try that if you have one.

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'98 E300 Turbo "Juliette"
'85 Federal 300TD

He also smacked himself in the face with it "makes me know I'm alive" lol.

Going to try this repair later in the weekend. I have 3 or 4 Aldas laying around.

Thanks for sharing ngarover maybe thats why 300 sd 0-60 is so slow. Some people say just eliminate the alda well what I do'nt understand is what takes the place of it if you eliminate it?

Nothing. Just unscrew it and leave it off.

I had a hell of a time getting one off a salvaged car, never did get it done. What was I doing wrong, any idea?

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1998 VW Cabrio
2001 Audi SomeRoad A/T (no air suspension)
2003 Audi DeadRoad M/T (no vroom, for later)
2002 Audi NoRoad A/T (nothing under the hood, being rebuilt)

It will not let the button in the injector rise, therefore starving the engine. Pressure will make the copper ballon inside the alda contract. Thats why some people remove the Alda, they want max fuel.

Did the video mention the correct size of the seal?

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'85 300D Cal 280,000 miles
'14 GLK 350 60000 miles

I used thin service wrenches.

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'85 300D Cal 280,000 miles
'14 GLK 350 60000 miles

10mm x 2.5mm

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Gone to the dark side

- Jeff

It's hard to tell from the video, but I don't think those are Phillips screws...they look like Pozidriv screws. Phillips drivers are similar, but not interchangeable. If you use a Phillips bit on them, they'll just strip. You'd need to pick up an appropriate bit at an industrial supply place. Then again, maybe they're just plain old Phillips.

This is the thread where I got that info a while back:
OM603 ALDA removal instructions

In post 62, gsxr comments on difficulty in removing the philips screws. I don't have any first hand experience since I chickened out and decided to just leave my alda in place.

__________________
1968 220D, w115, /8, OM615, Automatic transmission.
My 1987 300TD wagon was sold and my 2003 W210 E320 wagon was totaled (sheds tear).