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E90/E91/E92/E93 (2006 - 2013)
The E9X is the 4th evolution of the BMW 3 series including a highly tuned twin turbo 335i variant pushing out 300hp and 300 ft. lbs. of torque. BMW continues to show that it sets the bar for true driving performance! -- View the E9X Wiki

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  #1  
Old 05-15-2014, 01:46 PM
Alpineweissmatt Alpineweissmatt is online now
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Not Impressed With A/C

So now that's it's in the mid 90's here in Cali, I'm beginning to use the air conditioning. It takes a significant amount of time to reach a somewhat cool temp, (1-2 mins), and it never seems to get cold. I just took a 15 minute drive in 92 degree weather with the max ac on, and it never got comfortably cool inside the car.

This is a 2011 335is with 20k on it. Just got the car in January. Anyone else experience this, or is this a common behavior on these cars?
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  #2  
Old 05-15-2014, 02:00 PM
luigi524td luigi524td is offline
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I suppose it could be more problematic if you have a dark color car and a dark interior and park in the bright sun. Even with the tan interior I do find the car interior gets a bit toasty if I forget to use a sunshade / screen on the windshield. There's a lot of black plastic to absorb heat. On extremely hot days I'll open the back windows a few inches so the hot air has someplace to escape while I'm driving. That generally helps get the interior cooled down quicker - after 5-6 minutes I close everything up.

That said, passengers in the rear of my F`10 and even my previous e60 5 series and 7 series have complained that the air circulation to the back seats is very weak - even with the back of center console vents open all the way. I don't think I'd ever buy a black on black BMW unless I lived in the arctic circle!
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  #3  
Old 05-15-2014, 02:06 PM
Alpineweissmatt Alpineweissmatt is online now
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I hear what you're saying. It's while with black interior and I did open the sunroof and crack the windows to let the hot air escape. It didn't seem to help much. Not what I'm expecting from a $60k car.
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Old 05-15-2014, 02:17 PM
Nerdboss Nerdboss is offline
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Quote:
Originally Posted by Alpineweissmatt View Post
So now that's it's in the mid 90's here in Cali, I'm beginning to use the air conditioning. It takes a significant amount of time to reach a somewhat cool temp, (1-2 mins), and it never seems to get cold. I just took a 15 minute drive in 92 degree weather with the max ac on, and it never got comfortably cool inside the car.

This is a 2011 335is with 20k on it. Just got the car in January. Anyone else experience this, or is this a common behavior on these cars?
It may have a refrigerant leak. Does the air out of the vents feel cold? My car has the same issue and it's going to the dealer on Monday to have it fixed.
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  #5  
Old 05-15-2014, 02:19 PM
Ilovemycar Ilovemycar is offline
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Yes, it could be a lot of heat soaking. These days, I often leave all garage doors open for a significant amount of time after parking, because even my relatively light color combo of Saddle Brown and Space Gray retains enough heat to affect the temperature inside the home. You've probably already addressed it, but I'd look into a high quality ceramic tint if you haven't already done so. It's quite illegal, and often frowned upon for obvious reasons, but you can extremely light tints which still provide large amounts of solar energy rejection for the windshield as well.
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Old 05-15-2014, 02:20 PM
fdriller9 fdriller9 is offline
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Turn on recirculation and it will help. Otherwise, you are trying to constantly cool 90 F degree air. You will never cool the cabin that way
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  #7  
Old 05-15-2014, 02:27 PM
Alpineweissmatt Alpineweissmatt is online now
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All the windows are (illegally) dark tinted with the windshield being the only exception. I've been running the "Max AC" function which turns on circulation. Looks like I've got a trip to the dealer coming. Do they charge if they determine there is no issue? It's under warrantly until next month.
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Old 05-15-2014, 02:29 PM
Ilovemycar Ilovemycar is offline
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Quote:
Originally Posted by Alpineweissmatt View Post
All the windows are (illegally) dark tinted with the windshield being the only exception. I've been running the "Max AC" function which turns on circulation. Looks like I've got a trip to the dealer coming. Do they charge if they determine there is no issue? It's under warrantly until next month.
Just FYI, darkness has very little to do with heat rejection. It's the technology that matters more. For instance, my 80% nano ceramic is on par with 15% Llumar premium film tint.

The dealership should not be charging you anything.
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Old 05-15-2014, 03:01 PM
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BB_cuda BB_cuda is offline
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I've used mine in several Texas summers and cooling is pretty good within a few minutes. You're not supposed to get cool air in one minute. The heat load of the hot car is being absorbed by the A/C system and takes a few air exchange cycles before you can knock that down some. I have comfort package and use the built in shades on rear and back windows and ALWAYS use from sun screen.

Sort of backwards weather right now. It was 51F here this am and i'm 5 miles from Gulf of Mexico. Normally Cali is way cooler than here. Reality will be back in a few days and we will have 88F here.
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Old 05-15-2014, 03:03 PM
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I would have your A/C looked at. The A/C in my 7-year old 335i gets extremely cold. No issues cooling the car off (just got a reading of +102F over the lunch hour today).
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Old 05-15-2014, 07:53 PM
sptt144 sptt144 is offline
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Last edited by sptt144; 05-15-2014 at 07:55 PM.
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  #12  
Old 05-15-2014, 07:55 PM
sptt144 sptt144 is offline
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I live in So Cal as well and my car is black interior and gets plenty cold very quick! I have to crank it down to 50% on blower after about 5 minutes and I run hot by nature. Was in the Inland Empire today and stayed very cool very quickly. Should have your system tested.
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Old 05-15-2014, 09:32 PM
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CALWATERBOY CALWATERBOY is offline
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Quote:
Originally Posted by Alpineweissmatt View Post
All the windows are (illegally) dark tinted with the windshield being the only exception. I've been running the "Max AC" function which turns on circulation. Looks like I've got a trip to the dealer coming. Do they charge if they determine there is no issue? It's under warrantly until next month.

Before you dealer-up, stick a thermometer in an AC vent. What's the temp?
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Old 05-15-2014, 10:00 PM
wilt wilt is offline
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Originally Posted by CALWATERBOY View Post
Before you dealer-up, stick a thermometer in an AC vent. What's the temp?
I thought about posting the fact that my CPO inspection documents show they measured A/C as 45F degrees...then I started to wonder...
  • in what ambient temperature?
  • in what mode (recirculation vs. fresh air)?
  • at what fan speed?

Wouldn't all of these enter into the temperature read thru the vent?!
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Old 05-15-2014, 10:28 PM
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joechristmas joechristmas is offline
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Parked Car Ventilation?

http://www.bmwusa.com/Standard/Conte...modelcode=143Z
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  #16  
Old 05-16-2014, 08:30 AM
gcreese gcreese is offline
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Do you have a knob in the center of your console that you can turn from hot to cold? It's below the hazard flashers button and the central locking button. I had my 335i xDrive coupe for about a year before I realized that because I had it set to cold, that was why the cabin never really got that warm in the winter. Maybe you have the opposite problem: maybe the knob is set to hot. As a general rule, I keep it centered. According to the manual, the knob adjusts the temperature of the air coming out of the top vents, but it seems to have a big impact on overall cabin temperature.
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  #17  
Old 05-16-2014, 08:40 AM
wilt wilt is offline
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"2014 335i xDrive Sedan", not E90
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  #18  
Old 05-16-2014, 10:30 AM
Alpineweissmatt Alpineweissmatt is online now
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Quote:
Originally Posted by gcreese View Post
Do you have a knob in the center of your console that you can turn from hot to cold? It's below the hazard flashers button and the central locking button. I had my 335i xDrive coupe for about a year before I realized that because I had it set to cold, that was why the cabin never really got that warm in the winter. Maybe you have the opposite problem: maybe the knob is set to hot. As a general rule, I keep it centered. According to the manual, the knob adjusts the temperature of the air coming out of the top vents, but it seems to have a big impact on overall cabin temperature.
I've been wondering what that knob does. And yes, it's set all the way to cold. I have the parked car ventilation thing, but with proper cooling ac, it shouldn't been needed. I will shove a thermometer into the vent this afternoon and report back.

BTW, this car has the greatest heater I've ever experienced.
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Old 05-16-2014, 09:53 PM
Alpineweissmatt Alpineweissmatt is online now
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On the drive home from work, it was 93 degrees outside, and the lowest temperature I could measure from one of the vents was 56 degrees. Is this good enough?
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Old 05-17-2014, 06:42 AM
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Quote:
Originally Posted by alpineweissmatt View Post
on the drive home from work, it was 93 degrees outside, and the lowest temperature i could measure from one of the vents was 56 degrees. is this good enough?

NO!

Calling DSX........calling DSX......


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Last edited by CALWATERBOY; 05-17-2014 at 06:44 AM.
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  #21  
Old 05-17-2014, 03:02 PM
Alpineweissmatt Alpineweissmatt is online now
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Just to make sure waterboy, you're not being sarcastic, right? I'm setting up an appointment. Need to have them look at other things too: deep groove in brake rotor, rattle on startup, and leaking rear turbo...

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Old 05-17-2014, 06:18 PM
White94RX White94RX is offline
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First step in air con problems is an evacuation and recharge. 99% of the AC problems on a BMW are because of a low charge. Obviously a leak. And 90% of the time it's the evaporator.

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Old 05-17-2014, 07:20 PM
Nerdboss Nerdboss is offline
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Originally Posted by White94RX View Post
First step in air con problems is an evacuation and recharge. 99% of the AC problems on a BMW are because of a low charge. Obviously a leak. And 90% of the time it's the evaporator.

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90% of the time? I don't think so...

Much more likely to be something else than the evaporator on a 2011...

DSX has stated that evaporators aren't more troublesome on these cars than any other.
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Last edited by Nerdboss; 05-17-2014 at 07:29 PM.
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Old 05-17-2014, 08:14 PM
sptt144 sptt144 is offline
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Just to make sure waterboy, you're not being sarcastic, right? I'm setting up an appointment. Need to have them look at other things too: deep groove in brake rotor, rattle on startup, and leaking rear turbo...

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How would you know if you had a "leaking rear turbo"?

Last edited by sptt144; 05-17-2014 at 08:17 PM.
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  #25  
Old 05-17-2014, 08:22 PM
Alpineweissmatt Alpineweissmatt is online now
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How would you know if you had a "leaking rear turbo"?
Found out after a ppi at an indy. Guess they weren't good enough to catch the other stuff.

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