R2dMax

I just got word from a Reputable Euro shop that I will have to replace these. How intensive a job is this? Is it feasible to do so in my driveway since the system has been evacuated?

Oh W210 gurus, please help me

Plutoe

Absolutely a simple DIY---anyway what do you have to loose, maybe 500 bucks, but don't forget to add the correct amount of the correct oil to the system before having the system filled.

R2dMax

COOL!! So are there any write ups? I've searched couldn't locate anything

Plutoe

Write up's----what's that --this is a DIY project--you gotta get off your XXX and search like we all did---there are hundreds of vids on Youtube and thousands of docs when you google on MB AC systems----before that you have to identify the parts you need, by VIN to do it correctly---then you have to source the parts---then you have to have the tools---then you pray you did it correctly and there are no leaks when they vac the system prior to refill!!

illest

I'll try to be helpful

A/C Compressor DIY

This might help its a different model but the process should be similar

Dyer replacement info

also I would run the diagnostic found here to make sure the issue is what they say it is

R2dMax

Thanks Illest, I'll do just that!

R2dMax

Illest, I posted my data to your guy about a week ago. Not sure if it's backlog or does a response generally take longer than that?

Plutoe

That's a bunch of HS-----simply post the data here if you want help!!

raymond g-

that guy doesn't hang around his computer a lot and sometimes takes lengthy
sabbaticals. so better to just post the info here and let others jump in. also,
I recall that he will as for donations and if you didn't contribute, he may simply
prioritize your request behind the other paying folks (just guessing).

illest

@R2dMax Sorry I should have told you to post here or the other forum. Once you know the codes tracking down the issue should be a lot easier, no need to just throw parts at it.

R2dMax

Conditions at time of test:
5:30pm, 96 degrees outside, parked after a 15 minute drive home from work

Errors:
416
234

Sensor Values:
1-100
2-111
3-130
4-134
5-102
6-200
7- 09
8-107
9- 27
10-6.0
11-2.6
12-3.9

Plutoe

The fault 1416 affects the after engine stop heating coolant circulation
The fault 1234 affects the rate at which the fan speed comes on and automatically adjusts to environment
Both all explained in owners manual

Regarding actual values, 3 and 4 when cooling should be in the 70's and therefore an indication that you have a bad duo valve. Number 5 should be in the low 40's and when you look at number 7 that should be 15 and on earth then 8 would be 136--FYI you test data is correctly proportional in that 9=107.

What does this all mean, you are either low on refrigerant or your compressor can't make pressure----plus if it could the system would have to additionally over come the the two hot heater cores along with attempting to cool the air---not good!!

Suggestion=replace or fix(there are numerous HS posts on this cheap option) the duo valve and put a set of gages on the AC system to determine status of quantity of refrigerant or bad compressor. Hopefully when you cleared the faults they did not come back,if the do or did replace the cheap parts!!

illest

Does the A/C blow colder on one side of the car than the other? Generally that is a sign of a duo valve issue.