My Mercedes has underhood temperatures very similar to the FD (turbo diesel, and 5.0L V8 in a small space).

They also have 3-way solenoids for vaccuum control of transmission, turbo, A/C, etc.

These solenoids are about $32/each from WorldPac, and I have NEVER had one fail, even the ones on-top of the engine intake of the 5.0L V8. They are VERY well built, AND the connectors are available seperately for under $3.00.

I wonder if they would be a good replacment for the charge control solenoid and other 3-way solenoids.

Mercedes pn# 001 540 86 97, WorldPac pn# O4045-70190

Comments ?

:-) neil

 

As long as they use the same voltage to open/close, your only problem will be splicing a connector.

 

The stock solenoids hold up pretty well in my experience. Swapping to another manufacturer poses plumbing and mounting problems.

Interesting idea though.

 

I was under the hood of my little sis's Toyota a few weeks ago and it had vacuum solenoids that look exactly like the ones the FD uses.

 

Yep, 12VDC. Also, it has two (2) barbs, instead of one like the stock solenoids.

You can also open the connectors and clean them, and you can even get the little metal connectors as well as the housings.

:-) neil

 

Kickass! I've been wanting to see if there's a good replacement for the FD's solenoids. The only "problem" would be the size and if there was enough room to cleanly mount them.

I think the only real concern would be the size of the packaging and how they deal with boost. If they were from a turbodiesel, that helps out a lot . One failure point for our solenoids is not being able to hold higher than stock boost - the pressure actually keeps the spring return in the actuator from returning, so the solenoid sticks open.

The other main problem with the stock solenoids is having the nipples break off when you do a vacuum hose job. The plastic just gets brittle from the heat.

Did you ever find the root of your boost problem, BTW?

Dale

 

My charge control solenoid is slow to release pressure above 10-psi, and when heated, it really sticks.

I have one order, so we'll see.

Unfortunately, the MB solenoids nipples are also plastic!

FWIW, below is how the MB connector looks (inset photo, minus the resistor). Note how you can solder your own, clean them, and even add things like a resistor for modificiations.

:-) neil

 

I can hook you up with a good used one - PM me if you need one.

Dale

 

PM answered and payment sent. Send away.

:-) neil