E-Class (W212) 2010 - 2016: E 350, E 550
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2016 ac unit control

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Old Jan 31, 2023 | 09:40 PM
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2016 ac unit control


will the ac unit control from a 2014 be compatible in a 2016 e350 or will the part numbers be completely different?

Last edited by Cls63amgfan; Jan 31, 2023 at 11:27 PM. Reason: spelling
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Old Feb 1, 2023 | 02:23 AM
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W212 MY'14 M276-3.5NA @75kMi
help .... VIN

Originally Posted by Cls63amgfan

will the ac unit control from a 2014 be compatible in a 2016 e350 or will the part numbers be completely different?
This cross-reference question may be best answered by @konigstiger when he has a chance.
Do you have the VIN's involved ?

FYI: the MY'14 AAC modules are positively known to be built with unsoldered connections... '16 likely as well.
What sort of DTC's is that AAC up to?

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Old Feb 1, 2023 | 09:20 PM
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Originally Posted by CaliBenzDriver
This cross-reference question may be best answered by @konigstiger when he has a chance.
Do you have the VIN's involved ?

FYI: the MY'14 AAC modules are positively known to be built with unsoldered connections... '16 likely as well.
What sort of DTC's is that AAC up to?
DTC, AAC? trying to get the car ready for sale. one of the last things that need to be done besides the seat back on the drivers side.will send a pm.
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Old Feb 1, 2023 | 11:10 PM
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2016 E350 4Matic wagon, 2019 Ford Expedition, 2019 Chevy Bolt EV
The HVAC control panel for my wife's 2016 E350 4Matic wagon is A2129006727, and is for Code: 494+(805/806/807), described as...

494 US version
805 nappa leather mocha brown / almond beige
806 Model year 2016
807 YoM 16/1
her car has the 'Elegance' brown interior, rather than the more common 'avante garde' cold black/grey interior.

If I look up a generic 212.288 (e350 4matic wagon), I find these PN's...
A2129009109 replaced by A2129008608
A2129009309 replaced by A2129008808
A2129009209
A2129008708
A2129009409 replaced by A2129008908
A2129008808
A2129008908
A2129008608
A2129008708
A2129008411 replaced by A2129003114 replaced by A2129008811
A2129008511 replaced by A2129003014 replaced by A2129008911
A2129008611 replaced by A2129002914 replaced by A2129009011
A2129008711
A2129008811
A2129008911
A2129009011
.... oh geez, dozens more, my fingers are getting fried copy/pasting.

I didn't get around to copying which codes for which unit.

*ALL* of them say, Must be updated with latest flashware (firmware), and Must be coded to vehicle.





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Old Feb 2, 2023 | 12:33 AM
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Originally Posted by Left Coast Geek
The HVAC control panel for my wife's 2016 E350 4Matic wagon is A2129006727, and is for Code: 494+(805/806/807), described as...

494 US version
805 nappa leather mocha brown / almond beige
806 Model year 2016
807 YoM 16/1
her car has the 'Elegance' brown interior, rather than the more common 'avante garde' cold black/grey interior.

If I look up a generic 212.288 (e350 4matic wagon), I find these PN's...
A2129009109 replaced by A2129008608
A2129009309 replaced by A2129008808
A2129009209
A2129008708
A2129009409 replaced by A2129008908
A2129008808
A2129008908
A2129008608
A2129008708
A2129008411 replaced by A2129003114 replaced by A2129008811
A2129008511 replaced by A2129003014 replaced by A2129008911
A2129008611 replaced by A2129002914 replaced by A2129009011
A2129008711
A2129008811
A2129008911
A2129009011
.... oh geez, dozens more, my fingers are getting fried copy/pasting.

I didn't get around to copying which codes for which unit.

*ALL* of them say, Must be updated with latest flashware (firmware), and Must be coded to vehicle.
im assuming thats located in front of the control module. im missing a grey insert on my left side of the module. ive seen them go for 100$ and would rather replace it and guarantee the car gets out of the garage. im using my e class as a down payment on a 2022 Tesla.

Last edited by Cls63amgfan; Feb 2, 2023 at 12:38 AM.
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Old Feb 2, 2023 | 01:18 AM
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Originally Posted by Cls63amgfan
im assuming thats located in front of the control module. im missing a grey insert on my left side of the module. ive seen them go for 100$ and would rather replace it and guarantee the car gets out of the garage. im using my e class as a down payment on a 2022 Tesla.
those PNs are for the control module which includes the front panel, its all one assembly.




I can understand a HVAC CU costing $100, since it requires flashware (firmware) programming and option coding to match your vehicle, thats $$$$ at a dealer as very few independent garages can handle firmware or coding.

if you want to post your VIN, I can look up the correct PN for your HVAC control unit tomorrow.
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Old Feb 2, 2023 | 09:52 AM
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'71 Pinto
2014 is different part #, shop 2129006727 for your VIN.





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