The evil servo is not so evil, but Norm is still AC less! - Page 8 - PeachParts Mercedes-Benz Forum

79Mercy · #**106** 03-05-2010, 04:25 PM

Wow that was very nice of them. Was it George Murphy, I know he sells rebuilt units.

colincoon · #**107** 03-09-2010, 05:06 PM

Well Jimmy's aluminum servo came in today, and I plugged it in to see what would happen...

...it started to hum instantly

Looks like I have a working servo on my hands! I will be installing it completely tomorrow and hope for the best. Looks like I might have working AC by tomorrow!

79Mercy · #**108** 03-09-2010, 05:19 PM

Congrats!!! keep us posted.

vwnate1 · #**109** 03-09-2010, 05:45 PM

On the odd chance it runs the battery dead when the car is shut off , I spliced a cube relay into the # 30 (power) circuit behind the glovebox , next to the amplifier .

When the key is off , no power goes to the amplifier so it cannot ruin the servo trying to park it nor fry the amp's circuit board .

Problem solved .

I hope you'll consider running R-12 as it's the very best there is , 65 F in Death Valley when it's 125 F outside , car fully loaded down , no worries .

Remember to lube the auxiliary electric water pump on the bracket next to the servo too , it needs annual lubricaion to avoid failing & frying the amplifier .

colincoon · #**110** 03-09-2010, 10:00 PM

^I already recharged the system with R134, I really didn't want to hunt down R-12. The system does blow nice and cold before the car warms up after sitting overnight, I don't think it will be a problem at all to be honest. If anything I can just clear out everything in the future and fill with R-12, but I'm happy with 134.

I'll oil that aux pump tomorrow. It's only about a year old, so it's probably due for a change.

If the battery dies overnight I'll definitely try that.

I'm pretty excited to see if this all finally works out.

vwnate1 · #**111** 03-10-2010, 12:43 AM

Once you take the time & effort to go through all the little fiddly bits ,it works gangbusters and you'll be cool in summer and warm in winter .

JimmyL · #**112** 03-10-2010, 12:58 AM

Quote:

Originally Posted by colincoon

Well Jimmy's aluminum servo came in today, and I plugged it in to see what would happen...

...it started to hum instantly

Looks like I have a working servo on my hands! I will be installing it completely tomorrow and hope for the best. Looks like I might have working AC by tomorrow!

I am extremely happy to know that that thing worked. I almost blew off pulling if from the Euro gasser W123, but I just couldn't resist when I saw the aluminum body. And man that car was clean!
I couldn't help myself though. I of course polished it before I sent it. It is a compulsion.......

colincoon · #**113** 03-10-2010, 01:17 AM

Quote:

Originally Posted by vwnate1

Once you take the time & effort to go through all the little fiddly bits ,it works gangbusters and you'll be cool in summer and warm in winter .

It really isn't that complicated, just expensive. Really it's only three parts in the ACCII system that can go wrong, as long as your compressor components are in good order. If this works I'll be rather happy.

Quote:

Originally Posted by JimmyL

I am extremely happy to know that that thing worked. I almost blew off pulling if from the Euro gasser W123, but I just couldn't resist when I saw the aluminum body. And man that car was clean!
I couldn't help myself though. I of course polished it before I sent it. It is a compulsion.......

Well I'm glad you didn't! It looks a lot better then the plastic bodied servo, that's for sure. I noticed it looked a little shiny, now all I have to do is polish the top of my air cleaner and all will be well =]

Thanks a ton Jimmy, I really appreciate it!

vwnate1 · #**114** 03-10-2010, 01:29 AM

Quote:

Originally Posted by colincoon

It really isn't that complicated, just expensive. Really it's only three parts in the ACCII system that can go wrong, as long as your compressor components are in good order. If this works I'll be rather happy.

I should write up all the things I had to replace or repair to get mine working ,it was simply amazing .

FWIW ,it's not ACCII ! Chrysler called it Air Temp II and Mercedes called it
Klima I .

colincoon · #**115** 03-10-2010, 01:19 PM

Success!! After swapping out the servos this morning and warming the car up I am happy to report that the entire system works! AC blows really really cold, I'm quite happy with it, and heat comes on nice and hot as well.

Finally after more then a year the system is working!

TylerH860 · #**116** 03-10-2010, 03:43 PM

Ka'plah!!!!

JimmyL · #**117** 03-10-2010, 03:45 PM

79Mercy · #**118** 03-10-2010, 03:46 PM

Awesome, just in time, its getting warm here in Jax.

colincoon · #**119** 03-10-2010, 04:48 PM

Yeah it's hot as balls here in Orlando, pretty much fixed it on the first day of warm weather.

After driving around a bit I noticed a few things. When the car is sitting at idle (stoplight, etc) it gets really hot (the car temp that is, not the cabin temp). Like at the 100* line, usually it sits around 90* at all times and doesn't go higher unless I park it. When parked it goes past the 100* line, obviously not good! This is with the AC compressor on.

My condenser fan does not come on at all. I'm guessing the high temps are a result of it not coming on. I'll rig up some power to it shortly to see if it works, otherwise I might need a new one.

The cabin cools down in about 5 minutes. The 134 is really really cold to be honest, I'm happy with it.

I'm going to try a few different amps as it seems I have to "trick" the servo to blow hot air. But it's not a big deal at the moment.

Otherwise I'm incredibly happy that this system finally works!

TylerH860 · #**120** 03-10-2010, 04:58 PM

Its going to rise up a bit when you're idling on hot days. Anything under 110* is okay. The aux cooling fan should be kicking on if it gets much higher than that.

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