Welcome to the Forum @Qprint1!   From the 2013 Edge Workshop Manual...   Cooling System Draining, Filling and Bleeding Draining WARNING: Always allow the engine to cool before opening the cooling system. Do not unscrew the coolant pressure relief cap when the engine is operating or the cooling system is hot. The cooling system is under pressure; steam and hot liquid can come out forcefully when the cap is loosened slightly. Failure to follow these instructions may result in serious personal injury.   NOTICE: The coolant must be recovered in a suitable, clean container for reuse. If the coolant is contaminated, it must be recycled or disposed of correctly. Using contaminated coolant may result in damage to the engine or cooling system components.   NOTICE: The engine cooling system is filled with Motorcraft® Orange Antifreeze/Coolant. Mixing coolant types degrades the corrosion protection of the coolant. Do not mix coolant types. Failure to follow these instructions may result in engine or cooling system damage.   NOTICE: Always fill the cooling system with the manufacturer's specified coolant. Chemically flush the cooling system if a non-specified coolant has been used. Refer to Cooling System Flushing in this section. Failure to follow these instructions may damage the engine or cooling system.   NOTE: During normal vehicle operation, Motorcraft® Orange Antifreeze/Coolant may change color from orange to pink or light red. As long as the engine coolant is clear and uncontaminated, this color change does not indicate the engine coolant has degraded nor does it require the engine coolant to be drained, the system to be flushed, or the engine coolant to be replaced.   NOTE: Do not use stop-leak style pellets/products as an additive in this engine cooling system. The addition of stop-leak style pellets/products can clog or damage the cooling system resulting in degraded cooling system performance and/or failure.   NOTE: Less than 80% of coolant capacity can be recovered with the engine in the vehicle. Dirty, rusty or contaminated coolant requires replacement. With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to Section  100-02. Release the pressure in the cooling system by slowly turning the pressure relief cap one-half turn counterclockwise. When the pressure is released, remove the pressure relief cap. Remove the 3 push-pins, the 7 screws and the radiator splash shield. Place a suitable container below the radiator draincock. Open the draincock and allow to drain. Close the draincock after draining. Filling and Bleeding without a Vacuum Cooling System Filler - 2.0L EcoBoost   NOTICE: Engine coolant provides boil protection, corrosion protection, freeze protection, and cooling efficiency to the engine and cooling components. In order to obtain these protections, maintain the engine coolant at the correct concentration and fluid level in the degas bottle.   To maintain the integrity of the coolant and the cooling system: Add Motorcraft® Orange Antifreeze/Coolant or equivalent. Do not mix coolant types. Do not add or mix with any other type of engine coolant. Mixing coolants may degrade the coolant's corrosion protection. Do not add alcohol, methanol, or brine, or any engine coolants mixed with alcohol or methanol antifreeze. These can cause engine damage from overheating or freezing. Ford Motor Company does NOT recommend the use of recycled engine coolant in vehicles originally equipped with Motorcraft® Orange Antifreeze/Coolant since a Ford-approved recycling process is not yet available.   NOTICE: Do not use stop-leak style pellets/products as an additive in this engine cooling system. The addition of stop-leak style pellets/products can clog or damage the cooling system resulting in degraded cooling system performance and/or failure. Install the radiator splash shield, the 7 screws and the 3 push-pins. Open the bleed valve on the heater core inlet hose. NOTE: Make sure the coolant flows from the radiator through the upper radiator hose and fills the engine. When full, coolant should flow from the bleed hole. When adding or topping off the engine coolant: Measure the coolant concentration in the vehicle using Coolant/Battery Refractometer 300-ROB75240 or equivalent. Determine the concentration desired based on the vehicle duty cycle of extreme hot or cold operating conditions. Add/top off or adjust the coolant as follows: For concentrations measured 48/52 to 50/50 (equates to a freeze point between -34°C (-30°F) and -37°C (-34°F)), use Motorcraft® Orange Antifreeze/Coolant Prediluted to maintain a coolant concentration in this same range. For all other concentrations, use Motorcraft® Orange Antifreeze/Coolant Concentrated and/or distilled water to get to the desired concentration. When refilling the engine coolant after a flush procedure, use a mixture of Motorcraft® Orange Antifreeze/Coolant Concentrated and distilled water to get to the desired concentration. Recommended coolant concentration is 48/52 to 50/50 (freeze protection -34°C (-30°F) and -37°C (-34°F)) engine coolant to distilled water. For extremely cold climates (less than -37°C (-34°F): It may be necessary to increase the coolant concentration above 50%. NEVER increase the coolant concentration above 60%. Maximum coolant concentration is 60/40 for cold weather areas. A coolant concentration of 60% provides freeze point protection down to -50°C (-58°F). Engine coolant concentration above 60% will decrease the overheat protection characteristics of the engine coolant and may damage the engine. For extremely hot climates: It is still necessary to maintain the coolant concentration above 40%. NEVER decrease the coolant concentration below 40%. Minimum coolant concentration is 40/60 for warm weather areas. A coolant concentration of 40% provides freeze point protection down to -34°C (-30°F). Engine coolant concentration below 40% will decrease the corrosion and freeze protection characteristics of the engine coolant and may damage the engine. Vehicles driven year-round in non-extreme climates should use a 48/52 to 50/50 (freeze protection -34°C (-30°F) and -37°C (-34°F)) mixture of engine coolant and distilled water for optimum cooling system and engine protection. Fill the degas bottle to 25 mm (0.984 in) above the COLD FILL line. Install the degas bottle cap and close the bleed valve. Turn the climate control system off. Start the engine and increase the engine speed to 3,500 rpm and hold for 30 seconds. Turn the engine off for and wait for 1 minute to purge any large air pockets from the cooling system. WARNING: Always allow the engine to cool before opening the cooling system. Do not unscrew the coolant pressure relief cap when the engine is operating or the cooling system is hot. The cooling system is under pressure; steam and hot liquid can come out forcefully when the cap is loosened slightly. Failure to follow these instructions may result in serious personal injury. Check the engine coolant level in degas bottle and if necessary fill to 25 mm (0.984 in) above the top of the COLD FILL LEVEL on the degas bottle if the engine is warm or to the top of the COLD FILL LEVEL if the engine is cold. Start the engine and let it idle until the engine reaches normal operating temperature and the thermostat is fully open. A fully open thermostat is verified by the cooling fan cycling on at least once. Increase the engine speed to 3,500 rpm and hold for 30 seconds. Allow the engine to idle for 30 seconds. Turn the engine off for 1 minute. Repeat steps 9 through 11 a total of 5 times to remove any remaining air trapped in the system. WARNING: Always allow the engine to cool before opening the cooling system. Do not unscrew the coolant pressure relief cap when the engine is operating or the cooling system is hot. The cooling system is under pressure; steam and hot liquid can come out forcefully when the cap is loosened slightly. Failure to follow these instructions may result in serious personal injury. Check the engine coolant level in degas bottle and if necessary fill the degas bottle to the max level mark. Install the degas bottle cap until at least 1 audible click is heard.   The full 2013 Edge-MKX Workshop Manual section, which includes the 3.5L/3.7L Duratec engine procedure, is attached below as a PDF document...   Good luck!   Cooling System Draining, Filling and Bleeding - 2.0L EcoBoost, 3.5L 3.7L Duratec - 2013 Edge-MKX Workshop Manual.pdf

2013 Edge has this hose.  I like steps on how to use this  bleed valve to get rid of  air pockets  after a flush drain and fill were done recently Part #    8L8Z-86362-A            fitments  only shows it on Escape and Fusion models

Thanks, I updated it because I was wrong. 2016 might require a USB hub update to work with CarPlay (had to swap it on a 2016 Escape, but not a 2017).

Anybody try Phoenix Systems coolant test strips to see if you're changing coolant too early or too late?  

Placing your device cursor over underlined acronyms may yield popup full-words descriptions of the acronyms...     TECHNICAL SERVICE BULLETIN No Audio/Sound And/Or Replacement DSP Will Not Program 25-2275 23 June 2025     Model: Lincoln 2024-2025 Nautilus Built on or before 24-Mar-2025 24-Channel Audio Digital Signal Processing Module (DSP)   Markets: North American markets only   Issue: Some of the vehicles listed in the Model statement above may exhibit no audio/sound and/or replacement DSP PMI that does not complete. This may be due to the software in the DSP.   Action: For vehicles that meet all of the criteria in the Issue and Model statements, follow the Service Procedure to reprogram or replace the DSP.   Parts Service Part Number Claim Quantity Package Order Quantity Number in Package Description R2TZ-18B849-M Only If Necessary (Up To 1) Only If Necessary (Up To 1) 1 24-Channel Digital Audio Signal Processing Module (DSP) Service part numbers and "number in package" quantity may change after publication, thus also affecting the "package order quantity". Refer to the parts catalog for the latest information. Claim Quantity refers to the total number of individual pieces required to repair the vehicle. Package Order Quantity refers to the amount of the service part number package(s) required to repair the vehicle. Number In Package refers to the number of individual pieces included in a service part number package. Only If Necessary indicates the part is not mandatory. Refer to the Service Procedure to determine the inspection/inclusion criteria.   Warranty Status: Eligible under provisions of New Vehicle Limited Warranty (NVLW)/Service Part Warranty (SPW)/Service Part New Vehicle (SPNV)/Extended Service Plan (ESP) coverage. Limits/policies/prior approvals are not altered by a TSB. NVLW/SPW/SPNV/ESP coverage limits are determined by the identified causal part and verified using the OASIS part coverage tool.   Labor Times Description Operation No. Time 2024-2025 Nautilus: Verify Feature Code, Software Level And Replace The DSP (Do Not Use With Any Other Labor Operations) 252275A 0.8 Hrs. 2024-2025 Nautilus: Verify Feature Code, Software Level Includes Time To Verify Module Communication, PMI Or Reprogram As Required (Do Not Use With Any Other Labor Operations) 252275B 0.4 Hrs. 2024-2025 Nautilus: Verify Feature Code, Software Level Includes Time To Verify Module Communication, Remove Inspect And Reinstall Fuse And PMI Or Reprogram As Required (Do Not Use With Any Other Labor Operations) 252274C 0.4 Hrs.   Repair/Claim Coding Causal Part: 18B849 Condition Code: 04   Service Procedure 1. Review the vehicle build information by double-clicking the VIN in the upper left corner in the PTS. Was the vehicle built with minor feature code IDBBN? (1). Yes - proceed to Step 2. (2). No - this article does not apply. For further diagnostics, refer to WSM, Section 415-00 > Diagnosis and Testing. 2. Review the vehicle software information by selecting the Diagnostics tab > Vehicle Software in PTS. Does the DSP currently show software part no. RC5T-14C589-BN or RC5T-14C589-BP? (1). Yes - install a new DSP. Refer to WSM, Section 415-00 > Removal and Installation. Repair is complete. (2). No - proceed to Step 3. 3. Using the latest version of the FDRS scan tool, perform a network test. Does the DSP communicate with the scan tool? (1). Yes - proceed to Step 5. (2). No - proceed to Step 4. 4. Remove the DSP fuse F138 from the BCMC, inspect the fuse for an open, and make sure the fuse has proper blade contact. After one minute, reinstall the good fuse. Does the DSP now communicate with the scan tool? (1). Yes - proceed to Step 5. (2). No - this article does not apply. Refer to WSM, Section 418-00A > Diagnosis and Testing. 5. Has the DSP previously been replaced? (1). Yes - attempt PMI on the DSP again using the latest version of FDRS. (2). No - reprogram the DSP using the latest version of FDRS.   © 2025 Ford Motor Company All rights reserved. NOTE: The information in Technical Service Bulletins is intended for use by trained, professional technicians with the knowledge, tools, and equipment to do the job properly and safely. It informs these technicians of conditions that may occur on some vehicles, or provides information that could assist in proper vehicle service. The procedures should not be performed by "do-it-yourselfers". Do not assume that a condition described affects your car or truck. Contact a Ford or Lincoln dealership to determine whether the Bulletin applies to your vehicle. Warranty Policy and Extended Service Plan documentation determine Warranty and/or Extended Service Plan coverage unless stated otherwise in the TSB article. The information in this Technical Service Bulletin (TSB) was current at the time of printing. Ford Motor Company reserves the right to supersede this information with updates. The most recent information is available through Ford Motor Company's on-line technical resources.     This Technical Service Bulletin is also attached below as a PDF document...   TSB 25-2275 - 2024-2025 Nautilus - No Audio-Sound And-Or Replacement DSP Will Not Program.pdf

2016 Edge in the US had Sync 3. 

Ford has disabled software updates for the computer in your infotainment system called the APIM (Accessory Protocol Interface Module). This is basically the computer that runs your SYNC 4 system (your touch screen, navigation, apps, etc.). If your vehicle's SYNC 4 software version is 23187 or older, your vehicle's infotainment system cannot currently be updated, not even by a Ford dealership. Ford made a technical decision to block updates for certain SYNC 4 systems. As of now, they haven’t explained why. Ford is expected to release more info or a fix later.

Sorry for being ignorant, but what does this mean in journeyman's terms. What would the reason be for ford to do this? I have a 2024 model, so I am curious to what is going on with Ford. 

@bogmanglen: The 2021 Edge Workshop Manual diagnostic Pinpoint Test AA directs to perform a Powertrain Control Module (PCM) Self Test scan-tool/Forscan procedure to see if any PCM DTC(s) are revealed.     PINPOINT TEST AA: U0401:00, U0401:82, U0422:68, U0422:81, U0452:82 Introduction DTC Fault Trigger Conditions DTC Description Fault Trigger Condition HVAC U0401:00 Invalid Data Received From ECM/PCM 'A': No Sub Type Information Sets when the HVAC control module receives invalid network data from the PCM . HVAC U0401:82 Invalid Data Received From ECM/PCM 'A': Alive/Sequence Counter Incorrect/Not Updated Sets when the HVAC control module receives invalid network data from the PCM . HVAC U0422:68 Invalid Data Received From Body Control Module: Event Information Sets when the HVAC control module receives invalid network data from the BCM . HVAC U0422:81 Invalid Data Received From Body Control Module: Invalid Serial Data Received Sets when the HVAC control module receives invalid network data from the BCM . HVAC U0452:82 Invalid Data Received From Restraints Control Module: Alive/Sequence Counter Incorrect/Not Updated Sets when the HVAC control module receives invalid network data from the RCM . Possible Causes Suspect module AA1 CHECK FOR DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE MODULE SENDING INVALID DATA Ignition ON. Using a diagnostic scan tool, carry out the self-test for the module in question sending the invalid data. Are any Diagnostic Trouble Codes (DTCs) present from the module sending the invalid data?   Yes DIAGNOSE the module sending the invalid data. REFER to the appropriate section in the Workshop Manual. No DIAGNOSE the observable symptom present. REFER to the appropriate Symptom chart in this section.     If yes. report the PCM DTC(s) back here.   If no, then a symptom-based diagnostic Pinpoint Test L, which evaluates many potential contributing factors, will need to be employed.   Pinpoint Test L and several -- but not all -- of its supporting documents are attached below for you to assess, if you wish to personally pursue the solution or if you might choose to have a professional technician address it on your behalf. Good luck!   PINPOINT TEST L - THE A-C (AIR CONDITIONING) IS INOPERATIVE - NO DIAGNOSTIC TROUBLE CODES (DTCS) - 2021 Edge Workshop Manual.pdf Climate Control System - System Operation and Component Description - 2021 Edge Workshop Manual.pdf Refrigerant System Tests - 2.0L EcoBoost - General Procedures - 2021 Edge Workshop Manual.pdf

All of a sudden, the AC quit yesterday.  Forscan shows U0401 in the HVAC module.  Fan blows, compressor clutch not engaged.   2021 Edge SEL 2.0   Any help appreciated!