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Discussion Starter · #1 ·
Hello yesterday I tried to using Front Defrost Button.
When I pressed it, the degree changed to 'HI'(highest).
Then I was trying to switch this degree lower. but if I changed degree or blow level.
It turned off.
Is this issue or just normal?
 

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If you want cold air to blow on the windshield you need to press the button to the left of the defrost button with the three arrows until the arrow pointing at the head is active...
 

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Discussion Starter · #3 ·
If you want cold air to blow on the windshield you need to press the button to the left of the defrost button with the three arrows until the arrow pointing at the head is active...
So you mean, I can't control degree when I only use Front Defrost Button right?
 

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On my previous cars with a similar system, when you hit defrost it is programmed to do what it does. Any change on your part takes it out of defrost and basically requires you to do everything manually.

I have found when I leave it on the factory defrost setting, it works very well. Having said that, I haven't tried my Alfa on yet but assume it will act in a similar fashion.
 

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On my previous cars with a similar system, when you hit defrost it is programmed to do what it does. Any change on your part takes it out of defrost and basically requires you to do everything manually.

I have found when I leave it on the factory defrost setting, it works very well. Having said that, I haven't tried my Alfa on yet but assume it will act in a similar fashion.
^^^what he said ala BMW:grin2:
 

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Discussion Starter · #6 ·
On my previous cars with a similar system, when you hit defrost it is programmed to do what it does. Any change on your part takes it out of defrost and basically requires you to do everything manually.

I have found when I leave it on the factory defrost setting, it works very well. Having said that, I haven't tried my Alfa on yet but assume it will act in a similar fashion.
So my car has problem right?
 

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Hello yesterday I tried to using Front Defrost Button.
When I pressed it, the degree changed to 'HI'(highest).
Then I was trying to switch this degree lower. but if I changed degree or blow level.
It turned off.
Is this issue or just normal?
Hi abmoon,

This is from your owner's manual:

"Front Defroster And MAX-DEF Function

Push the Front Defroster button (indicator illuminated) to defrost the windshield and side windows.
While in MAX-DEF function, the air conditioner will:

Activate the air conditioner compressor when the weather allows

Turn air recirculation off

Set the maximum air temperature (HI) on both the driver and passenger side

Activate a blower speed based on the temperature of the engine coolant

Adjust the air flow towards the windshield and front side windows

Activate the Rear Window Defroster

Display the fan speed (indicators illuminated) and current air distribution setting

Note: The MAX-DEF function remains active for approximately three minutes once the engine coolant reaches the proper temperature.

When the function is on, AUTO mode will deactivate. The only manual operations possible are adjusting blower speed and turning off the Rear Window Defroster. Pushing the button switches off the MAX-DEF function."

Kori
Alfa Romeo Social Care Specialist
 

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It is not an issue. The windshield itself is not heated. The front defrost button directs hot air towards the windshield.
 

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Just be glad it doesn't engage the AC as well. On NB2 era Miatas, Mazda decided to do this to help dry out the cabin because the convertible top drains are actually inside the cockpit at the ends of the rain rail. Yes, little dishes with drains that go down to rubber hoses that exit the body underneath. Also a contributor to water and rust damage because the drains get clogged. My salesman asked me to do him a favor and crack a window when it rains. This is why. The water in the drain cups causes continued condensation on the inside of the glass when it rains. This is especially frustrating in spring and fall when temp is close to dew point. NB1s do not engage AC but the drain cups are still a pain.

Also, I have noticed for years the cars have two fan speeds. Loud and Not High Enough. ;) Defrost is defrost. Anything else, you're on your own.
...
oops, speak of the devil: AC.
 

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Discussion Starter · #14 ·
Hi abmoon,

This is from your owner's manual:

"Front Defroster And MAX-DEF Function

Push the Front Defroster button (indicator illuminated) to defrost the windshield and side windows.
While in MAX-DEF function, the air conditioner will:

Activate the air conditioner compressor when the weather allows

Turn air recirculation off

Set the maximum air temperature (HI) on both the driver and passenger side

Activate a blower speed based on the temperature of the engine coolant

Adjust the air flow towards the windshield and front side windows

Activate the Rear Window Defroster

Display the fan speed (indicators illuminated) and current air distribution setting

Note: The MAX-DEF function remains active for approximately three minutes once the engine coolant reaches the proper temperature.

When the function is on, AUTO mode will deactivate. The only manual operations possible are adjusting blower speed and turning off the Rear Window Defroster. Pushing the button switches off the MAX-DEF function."

Kori
Alfa Romeo Social Care Specialist
What is MAX-DEF function?
 

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When the function is on, AUTO mode will deactivate. The only manual operations possible are adjusting blower speed and turning off the Rear Window Defroster. Pushing the button switches off the MAX-DEF function."

Kori
Alfa Romeo Social Care Specialist
Hi Kori,

I've noticed that I can't change the blower speed without deactivating the entire defrost. Is it designed this way?

Also, now that the weather has cooled off and I'm using the heat, my car is almost constantly fogged up, and I have to use the defrost several times on my 9 minute commute. Which is annoying as it's always blowing max speed and makes a conversation near impossible. When I do shut it off, the A/C always stays on. Thoughts????
 

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For what it's worth, Defrost only really does any good on max heat and blower. You just need to warm the windhiseld up quick until the cabin catches up. If you are still fogging up later, make sure recirc is OFF and consider using the ac. It can be a pain but a reality of life near the dewpoint. It might just be more effective that way. Otherwise, crack a window. Both of these engines make plenty of power so I would consider ac unless fully loaded with passengers and cargo. "Loud and not high enough, remember?" ;)
 
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For what it's worth, Defrost only really does any good on max heat and blower. You just need to warm the windhiseld up quick until the cabin catches up. If you are still fogging up later, make sure recirc is OFF and consider using the ac. It can be a pain but a reality of life near the dewpoint. It might just be more effective that way. Otherwise, crack a window. Both of these engines make plenty of power so I would consider ac unless fully loaded with passengers and cargo. "Loud and not high enough, remember?" ;)
Curious and not consistent with my experience. Defrosting the windshield of a cold car is one thing, but keeping it from fogging up later is a different problem. All of my vehicles (my Giulia is "on order") have a setting that allows a portion of the heater output to be directed at the windshield without setting high heat or high fan; that includes a DeSoto, an Etype, and a truck. Hopefully that is available via manual settings on Giulia. Without such a setting the car will not be drivable in the winter.
 
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