Yellow Cab

Hello to all

I have an E320 2001 (W210) and the EC Light came on about a monthago.

I was told I need to recharge the R134 witch I did today butthe light still on.

I need some help resetting this light please.

Thank you

Plutoe

Do the AC actual value and fault test-----then post the results!!

I will try to find the link

Yellow Cab

atahsnk you for your reply.
Can you please give me a link where i can find information regarding you reply because i tried to find it but i had no luch ( Do the AC actual value and fault test-----then post the results) I really did not undrestand what it means.
Thank you again

Plutoe

Try to start here, but read all the posts before you start!!

https://mbworld.org/forums/e-class-w...e-control.html

raymond g-

another 1

another 2

klaseeks

Here is my most recent experience with the ec light on a E320. light came on simultaneously the blower motor stopped working. I called our local specialist and told him about the light and i"suggested" that possibly it needs a new blower motor. (thinking the 2 were connected I dropped the car off, and he said there was no 12 volt coming from the blower motor so he replaced it. now he made no mention of the ec light, which was still on when the car was picked up. I went back today and he said that the ec light is an ac problem. I found the in board diagnostic test here on the forum but nothing happened so he sent me to a local shop and they hooked up to their diagnostic scanner and the board would not communicate with 2 scanners, so i'm told the control module needs replaced. Now while on defrost the blower wouldnt work either, so now i am wondering if the problem is/was the control module. I am selling the wagon and dont want to pass along any issues, as the "specialist" suggested i do just that. Left very disappointed and wished I had gone to a certified Mercedes dealer instead . Maybe should have put this in a new thread as well.

Plutoe

You have just been "seattle samed"------------you do not need an OBED scanner to read the MB AAC control systems actual value and fault test. You need two fingers and your brain!!

Look at post 4 for the link to for the tests

Do the tests and post the results!!

PS: Most likely the EC lamp is on because you have very low refrigerant levels, which usually means you have a leak!!

klaseeks

I used my 2 fingers , (i could point one of them at you, lol) but wont. and nothing happened. I went back and p/u the old blower, how do i test it?


PEGGY

klaseeks

ACTUALLY JUST GOT BACK FROM ANOTHER SHOP THEY TESTED THE BLOWER AND SAID IT'S DEAD.