Mercedes Benz W220 Climate Control Diagnostic

[@semihyilmaz4699]

How do you turn the A/C off?

[@WheelsTips]

Thanks a bunch for watching my video and taking the time to ask a question. It worked for me with the certain temperature and settings I have in the the video starting with temp. at 68 degrees Fahrenheit on both sides. Please share an update, thanks.

[@WheelsTips]

Also the engine is off and ignition position 2 so A/C would be off.

[@LULUS550]

BROOOOO! I just wanna thank you for this video ❤️, my 03 S500 had this issue for 4 years and I gave up but saw this video and followed your steps. I almost cried when I saw that AC off light switch. I’ve had to drive in 108 degree California weather without my AC. Thank you a thousand times man . Defiantly following your channel

[@WheelsTips]

Thanks a bunch for watching my video and taking the time to comment. Glad you were able to have your AC kick on. It is possible you need some freon in the system depending on what code you had, stay cool and enjoy the car!

[@BennyTygohome]

Very good video and easy to understand. My Dad has a 2004 s430 and he's saying the AC red light remains on, which means the AC is off. And he says the AC won't turn on, red light remains solid on. I'm going to follow your instructions to get the error codes and maybe try clearing them too. I suspect it might be running low on AC fluid and need recharging, but he says if that were it then the red light is supposed to flash meaning it is low, but it's not flashing it is solid, the red light just won't turn off.

[@BennyTygohome]

It is working! Awesome! My Dad's s430 had one error code 1256 which means "Evaporator Core Temperature Sensor Front Compartment (B10/6)". I cleared the code and his AC started working again immediately. Thank you sir.

[@BennyTygohome]

I may need to identify the temperature sensor part and see how much it costs and if it is something we can replace ourselves.

[@WheelsTips]

Hey Benny T thanks for watching my video and for sharing the update on your diagnostics. Glad to hear that your AC is working again, it is always good to check the Freon levels when the system is operating. Thanks again for taking the time to update in the comment section it is greatly appreciated and inspiring, enjoy the cool air, thanks again.

[@Endenize]

My ac is only blowing hot air, imma try this and I'll let you know how it goes, thanks for the video man

[@WheelsTips]

You’re welcome and thanks for watching my video and taking the time to comment. It’s possible you need to recharge the freon in the AC system as well. Please share an update, thanks.

[@phillysphamous]

Thank you so much for this! My EC light was stuck on which caused warm air to constantly come through my 2000 s430. I followed your instructions and erased the error code within a couple minutes. Air is cold flowing now that the EC button light isn’t stuck on any more!

[@WheelsTips]

Thanks a bunch for watching my video and taking the time to comment. Glad the code reset helped. You want to keep in mind that the car did have a fault code so you may want to check want the code was related too, such as low refrigerant. Please share an update, thanks a bunch.

[@curlymyhero]

Thx this trick works good! In a few days I'll read my scan tool and c what other codes come back.

[@WheelsTips]

Thanks a bunch for taking the time to comment and watch my video. Glad I could help read the diagnostic trouble codes on your W220, please share an update, thanks.

[@David-zv2em]

Hi can you show how the different settings of those two push buttons work? It’s so confusing what each setting does. My car is 2002 s55 amg. Thanks.

[@WheelsTips]

Thanks a bunch for watching my video and taking the time to comment. What issues are you having with your climate control? Maybe a I can let you know what value to pay attention to.

[@gillesbaillargeon4404]

Worked perfectly! Thank you so much!!!

[@WheelsTips]

Thanks for watching my video and taking the time to share a comment, greatly appreciated. Glad I could help with your W220 climate control diagnostics, enjoy the car.

[@ofkocaman]

Thank you, well done!

[@WheelsTips]

Glad I could help with your Mercedes W220 climate control unit diagnostics, enjoy the car.

[@zaharosu]

Hi on my S350, when on auto, A/C on there is cool air blowing from central vents but right hand side (driver side as is UK model) blows hot air? Also how to adjust temperature that blow on down side of car Thank you

[@WheelsTips]

Hey ALIN ZAHARIE thanks for watching my video and for the great question. I personally in a hot and cold issue on these Mercedes-Benz would always Google search, (year) Mercedes S350 duo valve. This in my experience tends to be the first solution, followed by checking if the actual climate control unit was the issue by swapping from a donor to temporarily see if the same exact issue was present. Also what trouble codes do you have stored on the climate control module? Thanks for any updates.

[@zaharosu]

@@WheelsTips Thank for prompt reply. Will do quick fault code check as soon as.

[@WheelsTips]

@ALIN ZAHARIE Also try giving the duo valve a tap with the top of a screw driver the, the plastic end while the system is active to see if you can get it to work for a few as the plunger tends to be stuck inside or malfunction. Thanks again looking forward to and update, also make sure to check your Freon levels.

[@bladimirbetancur327]

Have a 2001 s500 mercedes benz a/c runs for a while then just stops blowing but buttons remains on . just doesn't blow then i wait a little with a/c off then it starts again after. While shuts off again blowing..What could be the issue everything else points to a blower regulator?

[@WheelsTips]

Hey bladimirbetancur327 thanks for watching my video. Did you run the diagnostics, were there any codes stored? If you run the heat does it stop blowing like with the a/c? If so then I personally would look into the regulator. Please update with new diagnostics.

[@bladimirbetancur327]

@@WheelsTips one of them was 1424 1454 1463

[@WheelsTips]

Did you try the hot air blowing and seeing if it turns off? Take a look at Nr. 07 on the ACC diagnostic and see what your should be around 14 please share your value with the car running not moving.

[@tannerhurd]

So I have no ac codes the compressor is kicking on and there is condensation under the car but the code air won’t blow inside the car any ideas?

[@WheelsTips]

Thanks a bunch for watching my video and taking the time to comment. Are you getting no air blowing inside whatsoever? If so you may want to check your blower motor, along with the blower motor resistor and any associate fuses. Please share an update, thanks.

[@kraze888]

Can I do this on a 2007 e350 base or w211?

[@WheelsTips]

Hey Jesse R thanks for watching my video and for the great question. To the best of my knowledge if the climate control unit looks the same the diagnostics will be the same. The W211 does not have the same buttons if I recall, you would most likely need a scanner to get the codes, one with advance diagnostics to read all modules. Please share an update what is the issue with your W211 ACC climate control unit? Thanks a bunch for any update.

[@kraze888]

@@WheelsTips will do. I tried clearing the codes and I think I'm a have to reset the memory.. I was recommended not to reset the system by disconnecting the battery because of how many electrical stuff that is hooked up. Clutch is spinning but the refrigerant doesnt get sucked in. It had a low refrigerant code.

[@WheelsTips]

@@kraze888 I would try to clear the codes in the ACC module when you are ready to add to the system. After clearing the codes I would set up to receive the refill and activate accordingly. Looking forward to an update, thanks.

[@marianniranjan4385]

Thanks for the video 🎉👍

[@WheelsTips]

Hey Marian Niranjan thanks for watching my video. Glad I could help with the Mercedes Benz W220 climate control diagnostics, enjoy the car.

[@marianniranjan4385]

@@WheelsTips appreciate it. I've got a question. Can I make the AC work on one vent and simply program to switch off the other side? Thanks

[@WheelsTips]

I have never done that, so not sure if it possible. You can manually close the vent. As for programing you would have to use Mercedes software. Please share an update.

[@marianniranjan4385]

@@WheelsTips Thanks will try that.👍

[@WheelsTips]

Hey Marian Niranjan any updates?

[@room2three]

My ac statrted working. Its like 95 degrees. Id buy u a beer if u were here 🍻

[@WheelsTips]

Thanks a bunch for watching my video and taking the time to leave a comment, greatly appreciated. Glad I could help with your AC during these hot times, enjoy the car!

[@kingrayj2333]

Hey I have a bunch of codes what do I do Kla error a 1054 Kla v 1000 Kla v 1267 Kla v 1270 The heat doesn’t kick on the it only blows cold air

[@WheelsTips]

Thanks a bunch for watching my video and taking the time to comment. I am not sure what model MB you have, but you may want to Google search, Check DUO valve heat Mercedes W220. Please share an update, thanks.

[@francescamcgeorge1319]

I have a S430MB I can't get my AC to STAY ON it stuck on this auto system where it's constantly cutting of then jumping on.

[@WheelsTips]

Hey francesca mcgeorge thanks for watching my video. In my opinion you may have an issue with the freon levels, compressor itself or the climate control unit itself. It is very common on the Mercedes-Benz S class to store codes in the climate control module that need to be cleared with a diagnostics tool. Please share your experience once you diagnose your issue.

[@WheelsTips]

Please make sure to update us once again, interested in hearing your experience and sharing your wisdom.

[@WheelsTips]

So what was the outcome?

[@francescamcgeorge1319]

There's too parts there's something called a resistent and the blower is connected to that so since both parts are connected we just replaced the whole thing instead off separating them.

[@WheelsTips]

That is always an option as well, replacing the whole system gives you more assurance the problem will not return. Enjoy the car.

[@Filywardo]

My 2002 S500 is having this strange problem where the air will randomly cut on by itself intermittently and then cut off; out the rear vents. While my car is turned off.

[@WheelsTips]

Hey Fillywardo thanks for watching my video. In my opinion I have experienced the actual climate control unit needing repair. In my opinion, intermittent issues most often were related to failing electronics. Please share your diagnostics with us.

[@ilijamarinkovic5121]

Greetings my friend, I have a Mercedes s400 cdi w220 2002,and I have these fault codes:1054,1236,1237, 1240 and 1431, can you please look up and tell me what do they mean? Best Regards

[@WheelsTips]

Hey Ilija Marinkovic thanks for watching my video are those P codes or ACC fault codes? Please provide an update, thanks. Also it seems this is not the general W220 I usually saw given it is the CDI diesel Mercedes NOT common to USA, so I maybe limited in my experience.

[@ilijamarinkovic5121]

@@WheelsTips Greetings my friend, It says KLA A for 1054,for others it says FRA A, because this is the diagnostic from ACC display, so i can't tell. There is no P included. Best Regards

[@ilijamarinkovic5121]

@@WheelsTips If you want, i can send you the pictures of the codes that appear on my display.

[@WheelsTips]

It is possible that you are not getting the correct codes because the display is not fully readable the codes you provided are not valid codes. Also what scan tool are you using?

[@Kinghuncho31]

What does code 1230 mean ? My a/c blows cold then blow hot then blow cold again

[@WheelsTips]

Hey Lafon thanks for watching my video. The code is related to, Evaporator Core Temperature Sensor Front Compartment (B10/6). I would google search images, the model of your car and B10/6. This will give you some pictures to work with, please share an update.

[@WheelsTips]

I searched the web and the part is very inexpensive, assuming you have the car I think. It is a bit time consuming to get there but with time automotive abilities it should be doable.

[@phucvo1605]

Hi, I had noticed that the right auto marker button on the climate control of my car kept popping out after 5-10 seconds or a little bit longer. It never pulled out before once I pushed in. I wonder there is something wrong with the button or did I miss something? I have 2000 Mercedes S430. Thank you on advance.

[@WheelsTips]

Hey Phuc Vo thanks for watching my video. Truthfully in my opinion it sounds like age has taken a toll on your climate control unit. There are services that repair these units, google repair service climate control unit Mercedes s430. That will give you a more affordable repair than replacing. Also be cautious if you try to buy a different unit it maybe coded differently than the one you have. Please consider subscribing to my channel it would help me a lot, thanks. Get back to me with your solution, I am interested in the outcome, thanks.

[@HUSSAINSAMAN]

dear sir, when i start A/C WITH PUSH BUTTON, ENG SUCSSION FAN STARTS, PLS HELP

[@WheelsTips]

Hey Hussain Saman thanks for watching my video and for the comment. What is the problem with the car, is the A/C working? Seems to be normal operation for the car fans to engage when the A/C is activated, looking forward to an update, thanks.

[@abumannocchi7636]

Where’s fuse for this can’t find

[@WheelsTips]

Have you checked the fuse box fuses on the engine compartment on the right side, like fuse f33. Please share an update, thanks a bunch.

[@abumannocchi7636]

@@WheelsTips f33 ? Imma check that fuse , what amp? Not sure why my climate control shut off was working fine for 4-5 years

[@WheelsTips]

A wiring diagram will let you know this information and properly diagnose your car. Google search W220 climate control module wiring diagram. This will give you lots of options. Also try google searching W220 Mercedes fuse chart, in the fuse chart check all fuses with the world climate. Please share an update if the fuse fixed the issue. Thanks a bunch for all the updates!

[@abumannocchi7636]

@@WheelsTips ok thanks ill do it later seeing I’m driving a bmw now but after that no problems with car smooth

[@WheelsTips]

@@abumannocchi7636 Any update on whether the fuse fixed the climate control unit?

[@Aamirkhanvlogs1]

I had error1241 so I filled gas and pressure is ok but still its blowing hot air. No more errrors

[@WheelsTips]

Hey Jazz M, thanks for the input, that is a great place to start.

[@jaycash8611]

My ac light is still on as if the ac is turned off.. and no cold air it’s just normal air blowing

[@WheelsTips]

Thanks for watching my and leaving a comment. I see on an updated comment you fixed your Mercedes-Benz A/C issue, enjoy the car.

[@valy530]

Salut dețin același model si am o problema bagă căldură la maxim cobor gradele dar tot bagă căldură!!!

[@WheelsTips]

Îți mulțumesc că mi-ai vizionat videoclipul și că ți-ai acordat timp pentru a comenta. Sper să vă ajute acest videoclip, deoarece aveți aceeași situație, bucurați-vă de mașină.

[@selfpaiddon3709]

My code is 1000 n when I told my temp on 80 it still blows out cold air

[@WheelsTips]

Hey Selfpaid Don thanks for watching my video, code 1000 is a for a defective AAC Pushbutton Control Module (N22). This is basically your climate control module, the best way I have fixed these in the past is taking them out and sending them out to get rebuild. Google search, rebuild W220 climate control unit. This will provide you services which will rebuild your unit, this avoids getting a used unit that can fail quickly and may have different programing and is the least expensive. Please share an update.

[@jaycash8611]

Nvm I fixed it thank you!!!!

[@WheelsTips]

Glad you were able to fix it, enjoy the car!

[@MsXfusion]

The 0 on my climate control screen is flashing have you seen that problem before

[@WheelsTips]

Thanks a bunch for watching my video and taking the time to comment. Have you check for any stored climate control unit codes? Also, have you checked your freon levels. I have used a hold AC and rest after filling freon to activate compressor. Please share an update, thanks.

[@MsXfusion]

@@WheelsTips no not yet ! I barely started the car today. It was sitting for about two weeks due to a bad EIS module. I change that out and bought a new battery when starting it up I noticed the climate control blinking and the shifter would change gear but not move.

[@WheelsTips]

Definitely check your fuses and the EIS is tricky but that is another module I would always send to get repaired rather than getting a new one. The coding and cost of a new module was always so much more than remanufacturing the original. Please share an updated diagnostics, thanks. Also have you scanned the entire car for faults?

[@giomoussally83]

hi, thanks for your vedio pls could you share errors code list for me 👍👍

[@WheelsTips]

Hey gio moussally just google search something like W220 with B1229 - Heater core temperature (B10/1). This will pull up a list of codes, please share if you found something good, but please do not share links, thanks.

[@abumannocchi7636]

No power to mine at all

[@WheelsTips]

Thanks a bunch for watching my video video as I mentioned in the other comment have you checked you fuses. Do you have access to a wiring diagram to see what fuses correlate to the climate control unit in your Mercedes. Also if the unit is defective you can Google search, repair remanufacture W220 climate control. This will give you repair services which will avoid the expense of a new unit and coding. Please share an update, thanks a bunch.

[@abumannocchi7636]

If no power what fuse box should I check driver side passenger side. ? Or under seat

[@lacyl3123]

Workes

[@WheelsTips]

Hey Sky Mobile Mechanic thanks for watching my video and taking the time to comment. Glad I could help with your climate control diagnostics, enjoy the car.