Comments on: W210 Air Conditioning Diagnosis

By: Matt

Matt — Mon, 06 Feb 2012 14:32:00 +0000

Hey Blake, I sent you some beer money. I ran the code check yesterday and this is what i came up with;
1-67
2-64
3-116
4-123
5-80
6-193
7-04
8-e

B1226
B1229
B1230
B1233
B1234
B1235
B1417
B1227

The air in the car get slightly warm but not hot like it should. normally it wouldn’t be a big deal but i live in chicago and we have had some pretty brutal cold and it would be nice to have my car properly heat up in the winter. i’m not sure how well the a/c functions because i bought the car the week of christmas so i was not able to drive it when its been hot out.

By: Anonymous

Anonymous — Thu, 02 Feb 2012 02:42:00 +0000

Thanks for the beer! What sort of problem are you having with your climate control?
Blake

By: Tatum740

Tatum740 — Thu, 02 Feb 2012 02:17:00 +0000

Blake,

I sent you a cc payment for two beers, let me know if it went through, I did not use paypal.
my email address is: tatum740@gmail:disqus .com
Here are my codes:

1. 24
2. 16
3. 50
4. 50
5. 17
6. 72
7. 01
8. 19

EB1231
EB1416
E FF

By: Anonymous

Anonymous — Wed, 01 Feb 2012 06:46:00 +0000

Ossy,

Changing the blower regulator should fix the air speed problem. Your refrigerant pressure is quite low, so you may find that you need a recharge as well.
Blake

By: Anonymous

Anonymous — Wed, 01 Feb 2012 06:42:00 +0000

Hashim,

Is your left vent significantly warmer than the right? It looks like your duovalve is malfunctioning, causing the left side to blow hot air. Google “W210 duovalve cleaning” for instructions on how to repair it. (If cleaning it fails, it will need to be replaced.)
Your refrigerant pressure is fairly low; you may need a recharge as well.
Blake

By: Anonymous

Anonymous — Wed, 01 Feb 2012 06:40:00 +0000

Wayne,

Thanks for the beer. Your left vent is blowing hot air because the dual-zone heater valve is stuck open on the left side. The valve is located by the passenger side firewall. You may be able to take it apart and clean it. Google “w210 duovalve cleaning” for instructions and pictures on how to do this. If cleaning doesn’t work, it will need to be replaced.
Blake

By: Wayne

Wayne — Tue, 31 Jan 2012 17:08:00 +0000

1 28 E61 227
2 47 231
3 43 234
4 12 416
5 05 417
6 85
7 12
8 43

beer sent

left ac vent with hot air can be corrected sometimes by moving temp on left side from lo to hi

By: Hashim

Hashim — Tue, 24 Jan 2012 02:10:00 +0000

Hi Blake, would you please help me figure out how to fix the car’s A/C? It’s not blowing any cold air.

Here are the values I got,

Sensor Data:

#1 - 30
#2 - 35
#3 - 70
#4 - 39
#5 - 29
#6 - 84
#7 - 08
#8 - 37

Trouble Codes:

Eb1 - 417
Eb1 - 232
Eb1 - 234
Eb1 - 235
E – FF
Any help would be appreciated, thanks in advance

By: Ossy

Ossy — Mon, 23 Jan 2012 19:48:00 +0000

Hey Blake, I have a E430 1999, and my ac/heat blower isnt pushing any air, here is my numbers:
(Im from sweden so they are in celsius)1:05
2:05
3:27
4:29
5:16
6:78
7:01
8:11

E61 231
E61 232
E61 233
E61 234
E61 459

E FF

I was considering changing the blower regulator, any thoughts if that would solve my problem?

thx in advance and regards

By: Anonymous

Anonymous — Mon, 23 Jan 2012 15:14:00 +0000

Hi,

Thanks for the donation. The diagnostics for the newer S-class are different from the W210 E-class, so I’m not sure how to access them. The overwhelmingly likely reason for EC light being stuck on is that you need a recharge. There are a few other conditions (namely faulty sensors) that can cause the light to remain lit but they are pretty rare.
Blake