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91 350SD
14 F150 Eco
19 Fusion Hybrid
11 GT500

Your overboost protection valve is not in the circuit to the IP. That guys job is to vent boost presure away from the IP if the boost gets too high. It is in hte middle of the line between the manifold and the ALDA on the IP.

Typical issue, probably caked up internally with soot and was bypassed. I did it on my SDL until I got a new one.

I'd just get a few used ones from a parts yard

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I'm not a doctor, but I'll have a look.

'85 300SD 245k
'87 300SDL 251k
'90 300SEL 326k

Six others from BMW, GM, and Ford.

Liberty will not descend to a people; a people must raise themselves to liberty.[/IMG]

So...do I need it?

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91 350SD
14 F150 Eco
19 Fusion Hybrid
11 GT500

Yes, hook it back up. Its your overboost protection.

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2016 Corvette Stingray 2LT
1969 280SE
2023 Ram 1500
2007 Tiara 3200

Take it off and clean it out before you put it back on. I think I used something like WD40 to clean it out. Watch out though, it will shoot out all kinds of black junk. Kind of like carbon powder. Wrap the whole thing up in a rag before you shoot the WD40 to it.

-Jim

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1995 S350D, Green with black leather interior.
Bought January 2008 w/ 233,xxx miles.
I did 22,000 miles during the first year of ownership.

If that thing cakes up, it'll effect the function of the ALDA?

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RIP: 80 300SD
RIP: 79 450SEL
2002 E430 4matic (212,000km)
2002 ML500 'sport'

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FACEBOOK: PANZER450

Can you tap into the line going to this valve to feed a boost gauge?

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1981 240D, Auto Trans, 160k miles -- CRASHED!

Yes.

I think that would be a good spot for a tap.

I've been doing some reading over the last few days and I figured out what the thread starter was getting at.

HE REMOVED HIS ALDA!

There is a 9-10 page thread on this. I think he was trying to show off that his was now ALDA free.

Am I right?

How is it going?

I removed mine last night. It will be a few days before I have the car put back together. Maybe longer if I keep breaking stuff... (I broke a linkage end connector last night...)

-Jim

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1995 S350D, Green with black leather interior.
Bought January 2008 w/ 233,xxx miles.
I did 22,000 miles during the first year of ownership.

........yep, you're a veritiable genius........

Yea, well, I try to be modest...

But seriously, the photo doesn't really show where the ALDA used to be. It just shows the abandoned OB Protection Solenoid.

-Jim

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1995 S350D, Green with black leather interior.
Bought January 2008 w/ 233,xxx miles.
I did 22,000 miles during the first year of ownership.

But, seriously, check out post #12.

Neat, I just replaced the right-angle hose fitting on the bottom of that piece with a bit of standard straight hose (it had cracked completely off), got my power back! Maybe I'll flush it when I have a chance, see if I get more POWAH...