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Premium Member
1998 E320 base sedan @ 160kmiles
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6,940 Posts
OK, the cooling sensor was a past fault you cleared then.

You are welcome , Ghostbuster :).
 

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1982 380SEC, 2014 ML350 4Matic
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134 Posts
Discussion Starter #22
As a curiosity, many parts that I have replaced look different from old part. Evap sensor, coolant sensor and plug, all a little off.
 

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Premium Member
1998 E320 base sedan @ 160kmiles
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6,940 Posts
Well, maybe some design improvements, or aftermarket parts also common to other models, brands.
 

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1982 380SEC, 2014 ML350 4Matic
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134 Posts
Discussion Starter #24
Just in case, I still have the temperature sensor fan, for cabin air, it has a 140 part number. 140-830-00-08-M22. Didn’t find a good write off for that either. Does it just pull off?
 

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1982 380SEC, 2014 ML350 4Matic
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134 Posts
Discussion Starter #26
I also tried unsuccessfully to update my profile to show the 210, but to no avail. That probably says a lot about me....
 

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Premium Member
1998 E320 base sedan @ 160kmiles
Joined
·
6,940 Posts
Just in case, I still have the temperature sensor fan, for cabin air, it has a 140 part number. 140-830-00-08-M22. Didn’t find a good write off for that either. Does it just pull off?
Here is some video from our Russian friends :).
 

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Premium Member
1998 E320 base sedan @ 160kmiles
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6,940 Posts
Maybe years of dirt plugs the little fan inlet. Hold a small piece of tissue (1- inch by 1- inch or smaller). Hold it against the hole on the dome light assembly. With the a/c running, it should stay up with the air sucked by the little fan. The suction fan motor may go bad, or just dirt. You can blow it off gently with some compressed air , and then try again. Take the value of the reading of sensor 1 again.
 

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Premium Member
1998 E320 base sedan @ 160kmiles
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6,940 Posts
The fan sucks air then. You provided a value of 85 degrees F in your recent post which is a plausible value, but you provided 43 degrees F earlier which was not plausible when the outside temperature was 83 degrees F. So either you misread or reported it, or it was a temporary issue. I would just monitor it to insure that the value goes down as the car cools. Its whole purpose is to keep the cabin temperature within the set range. If the car cools good and the in cabin temperature is plausible after some days, you can return the part. You may break something else while replacing it, due to old aged plastics .
 

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1982 380SEC, 2014 ML350 4Matic
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134 Posts
Discussion Starter #32
Was working great, however, EC button came on and shut off compressor. Code was Eb 24 1, freon fill. Was showing pressure of 7 with EC button on. After reset, pressure was 15 when driving. Next time it happened I tried to refill system, but showing full on gauge on can. Today, EC button came on again and showed pressure of 6 while driving with compressor off. Just did a reset again. This will happen again. Is another sensor somewhere? Thanks!
 

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Premium Member
1998 E320 base sedan @ 160kmiles
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6,940 Posts
Post the full sensor readings please. It could be the refrigerant temperature sensor, based on the code.
 

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1982 380SEC, 2014 ML350 4Matic
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134 Posts
Discussion Starter #34
Driving now, 7 changing from 6 to 12, higher when idle at light
 

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1982 380SEC, 2014 ML350 4Matic
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134 Posts
Discussion Starter #36
Another clue maybe, left center vent is not as cold as right center. 10-15 degree difference.
 

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Premium Member
1998 E320 base sedan @ 160kmiles
Joined
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6,940 Posts
You have not posted ALL sensors. The refrigerant temp sensor is 8.

Post with the a/c running properly and post with the EC light is on.
 

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Premium Member
1998 E320 base sedan @ 160kmiles
Joined
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6,940 Posts
Unless you do a sensor reading in a systematic way, these sensor readings will not reveal the problem, as they are transitory nature. Read the sensor values when the a/c is working properly with #7 reading above 12 or 13.

You may have a problem with an aging clutch, belt slipping issues, who knows.. When you say reset, reset the fault code, or pressing the EC button to activate the compressor ?
 
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