A/C Air stopped blowing after loong drive
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I figured what the problem was. It was much simpler than I worried. as mentioned above, the Air vent clog up with no/less air coming out after few hours of drive. so when I started from NC, it happened again, so I had to stay overnight in DC. The next morning, it was all fine again and I took it to a mechanic, he said he can't fix it until he sees the problem. so I proceeded, but after couple of hours into my drive from DC to NY, the air stopped blowing again. so, I figured to take a look under the hood and checked cabin air filter.
by one look, I figured that's probably the culprit... the ACC Cabin Air filter seems to have not been replaced in the last four years I guess, it was completely dirty. So, I bought 2 new filters ($55 each at a BMW dealer in Jersey) and replaced it, it's only a 5 min job. So much for 4 yr/50k complete BMW maintenance, those buggers don't replace windshield wiper blades or cabin air filter unless you complain about them or specifically ask them to be replaced. I have done all my servicing in Miami (either Braman or South Motors), not crazy about their customer service or promptness....
Anyway, on my way back from NY to Miami, I had absolutely no problems with the A/C and the air vent. btw, the same air filter parts are half the price online at
http://www.car-stuff.com/store/?N=9744+429...1580+11921+9172
whew, it was a close call. I don't have the money to spend thousands of $$ on A/C compressor or other major issues there. I just ran out of 4 yr warranty and I didn't care to renew it as they wanted 3 or 4 grand / year for extending it...
Any suggestions on affordable extended warranty programs?
by one look, I figured that's probably the culprit... the ACC Cabin Air filter seems to have not been replaced in the last four years I guess, it was completely dirty. So, I bought 2 new filters ($55 each at a BMW dealer in Jersey) and replaced it, it's only a 5 min job. So much for 4 yr/50k complete BMW maintenance, those buggers don't replace windshield wiper blades or cabin air filter unless you complain about them or specifically ask them to be replaced. I have done all my servicing in Miami (either Braman or South Motors), not crazy about their customer service or promptness....
Anyway, on my way back from NY to Miami, I had absolutely no problems with the A/C and the air vent. btw, the same air filter parts are half the price online at
http://www.car-stuff.com/store/?N=9744+429...1580+11921+9172
whew, it was a close call. I don't have the money to spend thousands of $$ on A/C compressor or other major issues there. I just ran out of 4 yr warranty and I didn't care to renew it as they wanted 3 or 4 grand / year for extending it...
Any suggestions on affordable extended warranty programs?
Originally Posted by 530inOK' post='942698' date='Jul 15 2009, 07:40 AM
forums.e60.net/uploads/1155867731/gallery_237_213_2073842.pdf
Information from IHKA technical bulletin:
SBT Integrated automatic heating/air-conditioning system (IHKA), Basic and High E60, BMW AG - TIS
Evaporator temperature sensor
The sensor measures the outlet temperature of the refrigerant at the evaporator to prevent icing from occurring.
Maybe another scenario:
Program for avoiding condensation on the window surfaces (IHKA High only)
Measures to prevent condensation on the windscreen depend on a number of conditions:
? The engine must be running
? The IHKA must be in automatic mode
The IHKA control unit evaluates condensation sensor signal (humidity). If condensation on the windscreen is imminent, the
following measures are initiated in turn until the condensation has been eliminated. If one measure proves to be ineffective, the
next measure is initiated. Once successful, the measures previously performed are reversed step-by-step in reverse order.
Measures against condensation on windscreen:
? Open the defrost flaps further (max. 17.5 %)
? Switch to partially fresh air from air-recirculation/AUC/automatic air-recirculation mode
? Switch from partially fresh air in air-recirculation/AUC/automatic air-recirculation mode to fresh air
? Switch off variable evaporator control
? Raise blower speed (max. 28 %)
? Reduce airflow to footwell (by about 60 %)
? Increase temperature setting (by max. 2.5 ?C)
Information from IHKA technical bulletin:
SBT Integrated automatic heating/air-conditioning system (IHKA), Basic and High E60, BMW AG - TIS
Evaporator temperature sensor
The sensor measures the outlet temperature of the refrigerant at the evaporator to prevent icing from occurring.
Maybe another scenario:
Program for avoiding condensation on the window surfaces (IHKA High only)
Measures to prevent condensation on the windscreen depend on a number of conditions:
? The engine must be running
? The IHKA must be in automatic mode
The IHKA control unit evaluates condensation sensor signal (humidity). If condensation on the windscreen is imminent, the
following measures are initiated in turn until the condensation has been eliminated. If one measure proves to be ineffective, the
next measure is initiated. Once successful, the measures previously performed are reversed step-by-step in reverse order.
Measures against condensation on windscreen:
? Open the defrost flaps further (max. 17.5 %)
? Switch to partially fresh air from air-recirculation/AUC/automatic air-recirculation mode
? Switch from partially fresh air in air-recirculation/AUC/automatic air-recirculation mode to fresh air
? Switch off variable evaporator control
? Raise blower speed (max. 28 %)
? Reduce airflow to footwell (by about 60 %)
? Increase temperature setting (by max. 2.5 ?C)
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Joined: Sep 2007
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From: Jersey
My Ride: 2004 530i
Model Year: 2004
Originally Posted by mohanrs' post='956976' date='Jul 28 2009, 02:57 PM
I figured what the problem was. It was much simpler than I worried. as mentioned above, the Air vent clog up with no/less air coming out after few hours of drive. so when I started from NC, it happened again, so I had to stay overnight in DC. The next morning, it was all fine again and I took it to a mechanic, he said he can't fix it until he sees the problem. so I proceeded, but after couple of hours into my drive from DC to NY, the air stopped blowing again. so, I figured to take a look under the hood and checked cabin air filter.
by one look, I figured that's probably the culprit... the ACC Cabin Air filter seems to have not been replaced in the last four years I guess, it was completely dirty. So, I bought 2 new filters ($55 each at a BMW dealer in Jersey) and replaced it, it's only a 5 min job. So much for 4 yr/50k complete BMW maintenance, those buggers don't replace windshield wiper blades or cabin air filter unless you complain about them or specifically ask them to be replaced. I have done all my servicing in Miami (either Braman or South Motors), not crazy about their customer service or promptness....
Anyway, on my way back from NY to Miami, I had absolutely no problems with the A/C and the air vent. btw, the same air filter parts are half the price online at
http://www.car-stuff.com/store/?N=9744+429...1580+11921+9172
whew, it was a close call. I don't have the money to spend thousands of $$ on A/C compressor or other major issues there. I just ran out of 4 yr warranty and I didn't care to renew it as they wanted 3 or 4 grand / year for extending it...
Any suggestions on affordable extended warranty programs?
by one look, I figured that's probably the culprit... the ACC Cabin Air filter seems to have not been replaced in the last four years I guess, it was completely dirty. So, I bought 2 new filters ($55 each at a BMW dealer in Jersey) and replaced it, it's only a 5 min job. So much for 4 yr/50k complete BMW maintenance, those buggers don't replace windshield wiper blades or cabin air filter unless you complain about them or specifically ask them to be replaced. I have done all my servicing in Miami (either Braman or South Motors), not crazy about their customer service or promptness....
Anyway, on my way back from NY to Miami, I had absolutely no problems with the A/C and the air vent. btw, the same air filter parts are half the price online at
http://www.car-stuff.com/store/?N=9744+429...1580+11921+9172
whew, it was a close call. I don't have the money to spend thousands of $$ on A/C compressor or other major issues there. I just ran out of 4 yr warranty and I didn't care to renew it as they wanted 3 or 4 grand / year for extending it...
Any suggestions on affordable extended warranty programs?
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