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Driver side not heating up
- Thread starter Manfred
- Start date
JohnLod
///Member
Hi, I just want to confirm one thing, the air blows out on the drivers side but is cold, or no air blows out on the drivers side?
If the air does flow but is cold it could be the heater core which is blocked, we have had two which this ended up being the case. Unfortunately this requires the dash board and heater box to be removed, not a quick repair. You would need to either replace the core or see if you can have it cleaned properly.
Before you do this you need to make sure that the flaps etc. are working correctly.
If the air does flow but is cold it could be the heater core which is blocked, we have had two which this ended up being the case. Unfortunately this requires the dash board and heater box to be removed, not a quick repair. You would need to either replace the core or see if you can have it cleaned properly.
Before you do this you need to make sure that the flaps etc. are working correctly.
JohnLod
///Member
Manfred said:
Hi, I doubt that it will work, worth a try may be. It is like your radiator in the engine bay, only smaller naturally. First need to make sure you have eliminated all the other options. I don't know if a coolant flushing agent would work, haven't tried. Those we did were on motor plan and technical told us to replace them, which we did and it worked.
Please give feed back on the flushing, would be interested to know what the outcome is.
bertusmouton
Member
Hey guys. Thanks for the info.
Mine is the other way around. Cold air comes out the passenger side when the air con is on, but hot air on the driver side.
I have a e90 2008 320d. New to the BMW family. Used to have Audi's.
Bertus Mouton
Mine is the other way around. Cold air comes out the passenger side when the air con is on, but hot air on the driver side.
I have a e90 2008 320d. New to the BMW family. Used to have Audi's.
Bertus Mouton
bertusmouton
Member
Good to know, Manfred
Thanks for the feedback.
Still wonder what my issue can be. My driver side is only hot air. And no cold air at all.
Bertus Mouton
Thanks for the feedback.
Still wonder what my issue can be. My driver side is only hot air. And no cold air at all.
Bertus Mouton
bertusmouton
Member
Nope, not even thenJohn@Leo Haese Pretoria BMW said:
And turning the wheel, also does nothing to the passenger side. Not heating nor cooling...
Thanks John
Appreciate your help!
Bertus Mouton
bertusmouton
Member
Thanks JohnJohn@Leo Haese Pretoria BMW said:
At which Leo Haese are you? Maybe I can have it checked with you guys.
Bertus Mouton
Hi guys,
I know this thread is a bit old, but I am experiencing the same problem as mentioned above (E90 2006 320i), driver side cold-ish air only, passenger side hot air when both sides are set at 28oC. Now to give more detail. I noticed 1st the air vent for the feet starting blowing cold air, then the main air vent slowly started blowing colder and colder air over time, now it is only cold. Another peculiar thing is that I used to get Engine coolant leak from somewhere (not to this day did me or numerous mechanics managed to find what exactly is leaking !!), nevertheless, it magically stopped leaking on it's own, round about the same time the A/C on the driver's side stopped blowing hot air. Occassionally the engine coolant leaks reappears, but it seems to be only when I operate the A/C on cold both sides for a long period of time (driving 2hrs or more). both sides blow equal amount of cold even when set to lowest setting (which in Ireland...doesn't really help much...but we take what we are given) . The engine coolant leak was of the 1L per 1000km magnitude (a pool of coolant on the far side of across the coolant vessel between the radiator and engine...)..
Your help will be greatly appreciated as this vehicle has managed to surprise mechanics of all sorts to date (and my wallet...my wallet mainly...my gf is a peach compared to this):
1. Random "check engine" light...1st stack in catalytic converter overheating...fixed by adding Dipetane to the fuel
2. ABS, Traction Control, handbrake, tyre pressure sensor light suddenly start flashing altogether while driving on motorway (not fun !!!), then disappearing after parking vehicle overnight...then re-appearing again after another stroll on the motorway
3. Differential rebuilt (TWICE!) - Think I can hear the master bearings starting to go now...
4. Valve-Seals..... I won't even go into that 1...cost me a fortune..but done..
5. Sticky calipers...also not fun
I'll stop here, anyway, thanks again guys
I know this thread is a bit old, but I am experiencing the same problem as mentioned above (E90 2006 320i), driver side cold-ish air only, passenger side hot air when both sides are set at 28oC. Now to give more detail. I noticed 1st the air vent for the feet starting blowing cold air, then the main air vent slowly started blowing colder and colder air over time, now it is only cold. Another peculiar thing is that I used to get Engine coolant leak from somewhere (not to this day did me or numerous mechanics managed to find what exactly is leaking !!), nevertheless, it magically stopped leaking on it's own, round about the same time the A/C on the driver's side stopped blowing hot air. Occassionally the engine coolant leaks reappears, but it seems to be only when I operate the A/C on cold both sides for a long period of time (driving 2hrs or more). both sides blow equal amount of cold even when set to lowest setting (which in Ireland...doesn't really help much...but we take what we are given) . The engine coolant leak was of the 1L per 1000km magnitude (a pool of coolant on the far side of across the coolant vessel between the radiator and engine...)..
Your help will be greatly appreciated as this vehicle has managed to surprise mechanics of all sorts to date (and my wallet...my wallet mainly...my gf is a peach compared to this):
1. Random "check engine" light...1st stack in catalytic converter overheating...fixed by adding Dipetane to the fuel
2. ABS, Traction Control, handbrake, tyre pressure sensor light suddenly start flashing altogether while driving on motorway (not fun !!!), then disappearing after parking vehicle overnight...then re-appearing again after another stroll on the motorway
3. Differential rebuilt (TWICE!) - Think I can hear the master bearings starting to go now...
4. Valve-Seals..... I won't even go into that 1...cost me a fortune..but done..
5. Sticky calipers...also not fun
I'll stop here, anyway, thanks again guys
Lostboy
New member
Hi there.
Quick question:
Does your car get to operating temperature? if you unsure, access the hidden menu. check link below
I assume, I could be wrong the OT should be at 90-95 degrees. If that is not the case and your car does not reach the OT, I would suggest changing your thermostat on the water pump.
Have a look at the link below:
https://www.realoem.com/bmw/enUS/showparts?id=VA72-EUR-02-2006-E90-BMW-320i&diagId=11_3192
NO#:2
Quick question:
Does your car get to operating temperature? if you unsure, access the hidden menu. check link below
I assume, I could be wrong the OT should be at 90-95 degrees. If that is not the case and your car does not reach the OT, I would suggest changing your thermostat on the water pump.
Have a look at the link below:
https://www.realoem.com/bmw/enUS/showparts?id=VA72-EUR-02-2006-E90-BMW-320i&diagId=11_3192
NO#:2
RayMan101
Member
Wow, seems like this is a common problem.
Even I have the same issue.
with AC on, cold air blows on both sides...
heater on - blows hot air on passenger side, cold air on driver side...
I ended up scratching in the foot wells and checking the blower and Door Blend Actuator module, flaps all that nonsense. I even dismantled the actual motor that controls the flaps as this is sometimes the problem, that in the unit, the teeth break off (not my problem tho)
I ended up putting it all back and BOOM - warm air (minor win)
what I found that makes cold mornings more bareable is once the car is warm and hot air blowing our passenger side, I make sure the wheel is turned to red, the "ALL" dial is off (but still on 28deg both sides) and set the air circulation button so the green light on the right side is lit up)
it only then gets warmer...:dunnoanymore:
but I plan to replace the cabin/micro filter in a week or two when I have a Saturday morning off...
hopefully the pic below uploads nicely so you can see what sometimes bombs out...
Even I have the same issue.
with AC on, cold air blows on both sides...
heater on - blows hot air on passenger side, cold air on driver side...
I ended up scratching in the foot wells and checking the blower and Door Blend Actuator module, flaps all that nonsense. I even dismantled the actual motor that controls the flaps as this is sometimes the problem, that in the unit, the teeth break off (not my problem tho)
I ended up putting it all back and BOOM - warm air (minor win)
what I found that makes cold mornings more bareable is once the car is warm and hot air blowing our passenger side, I make sure the wheel is turned to red, the "ALL" dial is off (but still on 28deg both sides) and set the air circulation button so the green light on the right side is lit up)
it only then gets warmer...:dunnoanymore:
but I plan to replace the cabin/micro filter in a week or two when I have a Saturday morning off...
hopefully the pic below uploads nicely so you can see what sometimes bombs out...
Denver Govender
New member
Hi, brother where does this fit in the e90 320i so i can get to it and replace it
RayMan101
Member
Hey bud...
Sorry for the late reply....
It sits to the left of the drivers side foot well, at the back... Behind the radio/aircon unit.
It's a pretty easy thing to do (there are also a fee YouTube videos to help you find the air vent actuator.
Passenger side is to right foot side on the back. 🙂
Sorry for the late reply....
It sits to the left of the drivers side foot well, at the back... Behind the radio/aircon unit.
It's a pretty easy thing to do (there are also a fee YouTube videos to help you find the air vent actuator.
Passenger side is to right foot side on the back. 🙂
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