ALDA adjustment and more
 

I adjusted the ALDA for the first time this weekend. :) :sun_smile I cannot believe the difference. The car runs like new. It has plenty of get up and go, runs quieter and the transmission stopped flaring. I had to remove the black plastic cap and thin metal housing around the lock nut in order to loosen it. The metal was just slightly thicker than aluminum foil. I re-covered it with a rubber plug, although I don't see why it is necessary to keep the thing covered.

On a less positive note, the wife is giving me more pressure to end this project and I may have to sell the benz and get something more conventional. It would be a shame, but... :mad: ... I can always buy another one in a few years :o

It sure has been fun. :P

Congratulations, I plan to do the same to my 124 soon, as soon as it gets warmer outside. I live in MN and don't have the luxury of a heated garage. My car is really sluggish, especially when merging onto the highway or going up an incline. I hope the ALDA adjustment cures it for me.

I have a pump with an aluminum 'cone' on top the ALDA. Looks like this one might need to be drilled out to gain access to the adjustment.

I have never seen one like this before. It is off a euro 300SD...Bert

If you're sluggish, even after you get off the line, then an ALDA adjustment won't help. Are the lines going from the intake manifold to the overboost protection switch on the firewall, then back to the ALDA clean? EGR disconnected?? Have you measured your boost to ensure the turbo is working properly?

Bert,

On all that I've seen, that's just an anti-tamper covering that just "peels" off, revealing the screw and lock-nut underneath.

sorry to hear that. I have taken up the term "hobby" to define my car tinkering, especially since SWMBO used it first. When she still complains, I tell her that I'm thinking of taking up golf.