Question about 1997 BMW 5 Series

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Temperature from window vent is hot when air con on othersd are cold as set

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It's likely that your car has whats called a "Blow through system". The system has a few vents that aren't connected to the a/c or heatin system and just bring in straight air from the outside. The point being that fresh air is always circulated. Are the same vents cold in the winter even with the heat on?

Posted on Nov 20, 2009

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1 Answer

Cruze - hot air from driver side and cold from passenger


Do yourself a favor an take it to repair shop before you mess it up or hurt yourself !

May 14, 2015 | Cars & Trucks

Tip

Tips for operating Air conditioning system on Toyota Hilux and someother...


To cool off your Toyota after it has been parked in the hot sun, drive with the windows open for a few minutes. This vents the hot air, allowing the air conditioning to cool the interior more quickly.

Make sure the air intake grilles in front of the windshield are not blocked (by leaves or snow, for example).

On humid, do not blow cold air on the windshield. The windshield could fog up because of the difference in air temperature on the inside and outside of the windshield.

Keep the area under the front seats clear to allow air to circulate throughout the vehicle.

On cold days, set the fan speed to high for a minute to help clear the intake ducts of snow or moisture. This can reduce the amount of fogging on the windows.

When driving on dusty roads, close all windows. If dust thrown up b the vehicle is still drawn into the vehicle after closing the windows, it is recommended that the in intake be set to FRESH and the fan speed to any setting except "OFF".

If following another vehicle on a dusty road, or driving in windy and dusty conditions, it is recommended that the air intake be temporarily set to RECIRCULATE, which will close off the outside passage and prevent outside air and dust from entering the vehicle interior.

HEATING

For best results, set controls to;
Fan speed ---- Any setting except "OFF"
Temperature----Towards WARM (red zone)
Air intake ---- FRESH (outside air)
Air flow ---- FLOOR
Air conditioning ---- OFF

For quick heating, select recirculated air for a few minutes. To keep the windows from fogging, select fresh after the vehicle has been warmed.

Press the "A/C" button on for dehumidified heating.

Choose floor/windshield air flow to heat the voltage interior while defrosting or defogging the windshield.

AIR CONDITIONING

For best results, set controls to;

Fan speed --- Any setting except 'OFF"
Temperature --- Towards COLD (blue zone)
Air intake --- (outside air)
Air flow --- PANEL
Air conditioning --- ON

For quick cooling, move the air intake selector to recirculate for a few minutes.

VENTILATION

For best results, set controls to;

Fan speed --- Any setting except 'OFF"
Temperature --- Towards COLD (blue zone)
Air intake --- (outside air)
Air flow --- PANEL
Air conditioning --- ON

DEFOGGING

The inside of the windshield

For best results, set controls to:

Fan speed --- Any setting except 'OFF"
Temperature --- Towards WARM (red zone) to heat; COLD (blue zone) to cool
Air intake --- FRESH (outside air)
Air flow --- WINDSHIELD
Air conditioning --- ON

The outside of the windshield

For best results, set controls to:

Fan speed --- Any setting except 'OFF"
Temperature --- Towards WARM (red zone)
Air intake --- FRESH (outside air)
Air flow --- WINDSHIELD
Air conditioning --- OFF

On humid days, do not blow cold air on the windshield. The windshield could fog up because of the difference in air temperature on the inside and outside of the windshield.

DEFROSTING

The outside of the windshield

For best results, set controls to:

Fan speed --- Any setting except 'OFF"
Temperature --- Towards WARM (red zone)
Air intake --- FRESH (outside air)
Air flow --- WINDSHIELD
Air conditioning --- OFF

To heat the vehicle interior while defrosting the windshield, choose floor/windshield air flow.

on Feb 14, 2011 | Toyota Pickup Cars & Trucks

1 Answer

2005 Nissan Sentra - only blowing hot air from vents. Even when it is set on cold. It is only coming out of the feet vents as well and maybe a little from the defrost. The different air strengths...


is this a new problem or just a new car?
tell what you expect?
no car has perfect venting and never will.

is the problem, temperature lever set to cold
but i get hot air?
yes, then the temperature control is broken
to see why, read the manual, RTM
each car make and models and years, vary.
but there are 3 types.
some use a simple cable, and can just come loose
its all in the FSM.
or
at alldata dot com, its all there.
same thing at mitchels too.
ondemand5 dot com.

Oct 08, 2013 | 2005 Nissan Sentra

2 Answers

Air Con on my 2009 Mercury grand marquis is giving me problems. Cold air blows out the defrost vents but will not blow out the main vents. Please advise


the blend door in the lwr air vents is stuck it should be down by the squerrl cage also it could be electronically controlled

Jul 14, 2012 | Cars & Trucks

2 Answers

I have a 2001 Honda Odyssey. I only recently bought this. The rear air con vents only blow out cold air, no matter what the temperature it is set to. The dealer I bought from said this was standard, and...


I've have never heard of a "only cold air system", but hey, nothing surprises me anymore. try replacing the control unit in the front. hopefully that will take care of the problem. If not you need to check your blend valve. (headache depending on location)

Aug 02, 2010 | 2000 Honda Odyssey

1 Answer

This car has the automatic temperature control system


The hot/cold switch is probably bad.you have a blend door box that opens to let the cold air in and closes to let the hot air in.From what you are saying this part is no responding to the switch movement.Make sure power is at the switch and power should go through the switch when put on cold air this moves the blend door.Some times the blend door goes bad and has to be replaced its under the dash on the right side.

Aug 10, 2009 | 1999 Mercury Grand Marquis

1 Answer

Air Conditioner only works on the driver's side


Can someone who has had the problem , provide the solution? I want to thank you in advance if you have the answer.
Z from North Carolina

Jul 14, 2009 | 2003 BMW 325

1 Answer

Air Con Issues in BMW X5 2002


Change your temperature setting to affect fan speed and on off mode. The Vapor is a problem on particularly humid days and effects Mercedes as well this too is affected by the temperature setting.

Jul 03, 2009 | 2002 BMW 5 Series

1 Answer

Hot air coming out of vent when air is on.


put some frion in and change out the antifreeze

Apr 19, 2009 | 2001 Ford F150 Styleside SuperCrew

1 Answer

Temperature Control not working on 1999 Ford Explorer


Sounds like your temperature actuator is not moving or your temp door is broken. On max a-c ,coolant is shut off to your heater core allowing only cold air in.

Jan 16, 2009 | 1999 Ford Explorer

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