Increased emission... again, again and again....
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Joined: Sep 2007
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From: Hong Kong
My Ride: 530i
Mods: M5 sporty package, M5 Steering wheel, Sprint Booster
Originally Posted by bars_sun' post='899413' date='Jun 3 2009, 11:31 PM
After thermostat replacement - this is first time. Before thermostat replaced I got it about 4-5 times (it was averaging about 1-2 times in 6 month). This last winter was the worst one - was getting that error monthly.
I spoke with mechanic and he suggested to replace temp sensor (as being cheapest and fastest ways to eliminate one more possible cause)
I spoke with mechanic and he suggested to replace temp sensor (as being cheapest and fastest ways to eliminate one more possible cause)
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Joined: Jan 2009
Posts: 948
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From: Sin City
My Ride: Jet Black '05 545i, Sport/Premium Pkg, Steptronic, Adaptive Xenon, Nav, L7, Blue2th, PDC,
i haven't replaced thermostats on our bmw's yet, but on earlier model vehicles there could be a possibility that the thermostat be put in the wrong way. it would still fit but the valve on the wrongside. maybe bmw designed a failsafe feature but i'm unsure. it sure won't hurt to ask. just my 2cent. good luck
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Joined: Apr 2008
Posts: 94
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From: Milwaukee, Wisconsin
My Ride: 2004 BMW 545i Titanium Silver
Latest update - replaced temperature sensor (it's actually called Aux Fan Switch in parts catalog), replaced expansion tank, checked coolant concentration. Was all ok. Hooked up to Progman and my car does have recent software loaded for MY 09/2003 and I would guess including SIB related to characteristics map thermostat. Will update if light will come up again.
Mechanic said to don't worry about it and if it will be coming up just keep resetting light. But I am still thinking to buy something like ScanGauge and have it in the car and if light comes up to hook it up and verify temperature (its a pain to do that math to get to secret diagnostic menu)
Mechanic said to don't worry about it and if it will be coming up just keep resetting light. But I am still thinking to buy something like ScanGauge and have it in the car and if light comes up to hook it up and verify temperature (its a pain to do that math to get to secret diagnostic menu)
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Joined: Apr 2008
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From: Milwaukee, Wisconsin
My Ride: 2004 BMW 545i Titanium Silver
Originally Posted by evo42' post='901383' date='Jun 4 2009, 10:22 PM
How timely. I got this message on the way home tonight. Can any of these solutions be done at home without hooking-up the car to the machine that goes 'bing'?
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Joined: Mar 2008
Posts: 16
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From: Toronto, Canada
I got the same "increased emissions" in March and opted to try changing the thermostat...message went away and worked fine until this afternoon 
Now with the same message and code I'm wondering if its the parts?
Did you all use an OEM thermostat as a replacement?
SP
Now with the same message and code I'm wondering if its the parts?
Did you all use an OEM thermostat as a replacement?
SP
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Joined: Jul 2008
Posts: 179
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From: MN
Originally Posted by e60STEVE' post='901890' date='Jun 5 2009, 02:24 PM
Now with the same message and code I'm wondering if its the parts?
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Joined: Apr 2008
Posts: 94
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From: Milwaukee, Wisconsin
My Ride: 2004 BMW 545i Titanium Silver
Originally Posted by e60STEVE' post='901890' date='Jun 5 2009, 02:24 PM
I got the same "increased emissions" in March and opted to try changing the thermostat...message went away and worked fine until this afternoon
Now with the same message and code I'm wondering if its the parts?
Did you all use an OEM thermostat as a replacement?
SP
Now with the same message and code I'm wondering if its the parts?
Did you all use an OEM thermostat as a replacement?
SP
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Joined: Mar 2008
Posts: 16
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From: Toronto, Canada
Originally Posted by bars_sun' post='901980' date='Jun 5 2009, 04:48 PM
Thermostat was ordered from WorldPac which is ultimately same part that BMW dealer would get, but in the different box.
I ordered from WoldPac too...Wahler product...
I use a Snap On Scan Tool - Solus Pro.
Today's Scan showed 2 codes:
1) 10189 Endocumented Code
2) P27B8 Difference Pressure Sensor, Intake Manifold Plaus
Anyway, I cleared my codes today and am just hoping they go away, lol.
If they reappear, I'll start to worrying...
SP