w220 AC stops working suddenly in hot weather and seldolmly restarts after reset
Thread Starter
Newbie
Joined: Jun 2017
Posts: 4
Likes: 0
W220 S320 cdi
w220 AC stops working suddenly in hot weather and seldolmly restarts after reset
Hello members,
I happen to have a W220 S320 cdi and recently i encountered a very bizzare problem with its AC. It worked well and seemed to be in good shape more than a month ago but since a few days the AC suddenly stops blowing cold air after running for a few minutes, i give it a rest, reset it and it goes on well again for a few minutes. Ive checked each an everything in detail, scanned the car repeatedly but i was unable to trace the issue. The only appeared errors after reseting the climate control unit are NR:00 and Error 1270. However two of the MB experts i know have suggested to change the compressor but its very expensive and once installed the retailers wouldnt accept a return incase the issue is somewhere else. Id be very grateful for you kind help in framing the possible issues in my car.
Thankyou very much before hand.
I happen to have a W220 S320 cdi and recently i encountered a very bizzare problem with its AC. It worked well and seemed to be in good shape more than a month ago but since a few days the AC suddenly stops blowing cold air after running for a few minutes, i give it a rest, reset it and it goes on well again for a few minutes. Ive checked each an everything in detail, scanned the car repeatedly but i was unable to trace the issue. The only appeared errors after reseting the climate control unit are NR:00 and Error 1270. However two of the MB experts i know have suggested to change the compressor but its very expensive and once installed the retailers wouldnt accept a return incase the issue is somewhere else. Id be very grateful for you kind help in framing the possible issues in my car.
Thankyou very much before hand.
MBWorld Fanatic!
Joined: Jan 2008
Posts: 6,150
Likes: 533
Mercedes
Hello members,
I happen to have a W220 S320 cdi and recently i encountered a very bizzare problem with its AC. It worked well and seemed to be in good shape more than a month ago but since a few days the AC suddenly stops blowing cold air after running for a few minutes, i give it a rest, reset it and it goes on well again for a few minutes. Ive checked each an everything in detail, scanned the car repeatedly but i was unable to trace the issue. The only appeared errors after reseting the climate control unit are NR:00 and Error 1270. However two of the MB experts i know have suggested to change the compressor but its very expensive and once installed the retailers wouldnt accept a return incase the issue is somewhere else. Id be very grateful for you kind help in framing the possible issues in my car.
Thankyou very much before hand.
I happen to have a W220 S320 cdi and recently i encountered a very bizzare problem with its AC. It worked well and seemed to be in good shape more than a month ago but since a few days the AC suddenly stops blowing cold air after running for a few minutes, i give it a rest, reset it and it goes on well again for a few minutes. Ive checked each an everything in detail, scanned the car repeatedly but i was unable to trace the issue. The only appeared errors after reseting the climate control unit are NR:00 and Error 1270. However two of the MB experts i know have suggested to change the compressor but its very expensive and once installed the retailers wouldnt accept a return incase the issue is somewhere else. Id be very grateful for you kind help in framing the possible issues in my car.
Thankyou very much before hand.
MBWorld Fanatic!
Joined: Dec 2012
Posts: 2,473
Likes: 439
From: Ball Ground, GA (N of Atlanta)
2003 S500 2007 GL450
One of the primary principles of diagnosis/troubleshooting is to continual split the probable location of the problem in the affected system in half. In this case, the first quick, easy check will tell you whether the problem is in the refrigeration system (including its controls) or in the main HVAC control system.
When the HVAC air turns hot, leave the engine running, open the hood/bonnet, and feel of the metal HVAC lines on the left fender. One line should be cold, the other should be hot. (You might also want to do this when the system is giving cold air, so you know what the normal conditions of the lines are.)
If they are, the refrigeration system is working. If they are not, the refrigeration system isn't working.
When the HVAC air turns hot, leave the engine running, open the hood/bonnet, and feel of the metal HVAC lines on the left fender. One line should be cold, the other should be hot. (You might also want to do this when the system is giving cold air, so you know what the normal conditions of the lines are.)
If they are, the refrigeration system is working. If they are not, the refrigeration system isn't working.
Thread Starter
Newbie
Joined: Jun 2017
Posts: 4
Likes: 0
W220 S320 cdi
What should be the exact pressure of the refrigerant.? It falls between 20-30 bars on the guage when the pedal is pressed.
Trending Topics
MB World Stories
The Best of Mercedes & AMG
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun
Verdad Gallardo
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Verdad Gallardo
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine
Verdad Gallardo
Flawlessly Restored Mercedes 190E Evo II Heads to Auction
Verdad Gallardo
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know
Verdad Gallardo
Mercedes EQS Gets A Major Update: Everything You Need to Know
Verdad Gallardo
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve
Verdad Gallardo
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping
Verdad Gallardo
