Piece of crap idle control valve - PeachParts Mercedes-Benz Forum

DAVECAD2.0 · #8 11-10-2011, 10:10 AM

Quote:

Originally Posted by pentoman

So I was kindly renovating the rubber pipes on my 190E, fitting nice new ones for it. However in the process I decided to clean out the idle control valve by removing and filling the inside with carb cleaner. Well what a mistake that turned out to be. Now the thing is jumping around all over the place, sometimes. 2000rpm, sometimes 700, frequently stalling. What a disaster.

So what can I do? Can I make this piece of rubbish work right (it was absolutely perfect before, I guess I shouldn't have messed with it) or does it need replacing? I tried some spray lube inside there in case I had dried it out with all that carb cleaner, but no luck.

I have also concluded the whole KE Jetronic setup is a giant compromise that should never have got past the drawing board. Suitable for a military vehicle perhaps but not a car. Rant over...

You are partially correct.
As a Mechanical Engineer, I can unequivocally state the the Bosch ICV in and of itself is not a POS. However, the entire K-Jet system as a whole IS a HUGE POS, Rube Goldberg, clap trap, overly complicated, WTF, fuel delivery system. If only someone made a replacement intake manifold for a carb they would be financially well off. Look at all the expensive, delicate crap (and weight) that could be eliminated from these cars. It is readily apparent that KISS is a totally alien concept to German (fuel delivery) Engineers.
Yes Virginia, the Emperor is naked.