First time in the cold

josh · 10-19-2008, 07:22 AM

I started the 135i yesterday (with 19F on the thermometer), and the tire sensor icon was up. Looked around, all tires seemed OK, but the pressure gauge showed 30-31 psi all around. Drove up to a gas station, brought them up to 36, and was able to reset it.
Kinda cool, actually; I never thought about tire pressure going up and down with temperature.

I also noticed oil temperature never got above ~200, whereas same type of driving the day before (in ~50-55F) had it up to 230-240. Gas mileage was also down about 1 mpg.

Do these cars have an oil thermostat?

135iUSN · 10-19-2008, 10:24 AM

got me and congrats on the senior moment (100 posts)

gio · 10-19-2008, 11:27 PM

Quote:

Originally Posted by josh

I started the 135i yesterday (with 19F on the thermometer), and the tire sensor icon was up. Looked around, all tires seemed OK, but the pressure gauge showed 30-31 psi all around. Drove up to a gas station, brought them up to 36, and was able to reset it.
Kinda cool, actually; I never thought about tire pressure going up and down with temperature.

I also noticed oil temperature never got above ~200, whereas same type of driving the day before (in ~50-55F) had it up to 230-240. Gas mileage was also down about 1 mpg.

Do these cars have an oil thermostat?

Everything you said makes sense except you should be getting better gas mileage not worse. I was driving tonight and it was down to 33 in CT in some parts and I noticed the oil temperature was about 220-230 when it's normally 230-240 so it's reasonable that it never got above 200 if it was 19 out. You need to get yourself some winter tires soon though, summer performance tires stop working once it gets to around 35 or so.

imported_mega · 10-20-2008, 07:24 AM

it dont look like it's got a thermostat in the oil cooler

http://www.realoem.com/bmw/showparts...75&hg=17&fg=05

I thought it would, older bmw's have them

josh · 10-27-2008, 03:14 PM

Quote:

Originally Posted by gio

... summer performance tires stop working once it gets to around 35 or so.

So, are OEM tires unsafe at temps below freezing even on dry pavement?

warmtoes · 10-27-2008, 04:10 PM

It's not just OEM tires it's summer tires in general that have issue once you get close to freezing. I read a week back or so that once it gets to -15 Celsius they lose all grip.

gio · 10-27-2008, 04:12 PM

Quote:

Originally Posted by josh

So, are OEM tires unsafe at temps below freezing even on dry pavement?

Yes, they are unsafe even on dry pavement.

FreeBMW.net · 10-27-2008, 04:57 PM

Quote:

Originally Posted by mega

it dont look like it's got a thermostat in the oil cooler

http://www.realoem.com/bmw/showparts...75&hg=17&fg=05

I thought it would, older bmw's have them

There is 100% most defiantly a oil cooler thermostat, it is in the housing that the oil cooler lines attach to by the filter. I have tested this by feeling the oil cooler lines with the engine running and at temp and the lines are not even warm, go drive it hard and feel tham and they are 200+ deg

see item #9 in the below link

http://www.realoem.com/bmw/showparts...71&hg=11&fg=30

imported_mega · 10-27-2008, 05:03 PM

Quote:

Originally Posted by FreeBMW

There is 100% most defiantly a oil cooler thermostat, it is in the housing that the oil cooler lines attach to by the filter. I have tested this by feeling the oil cooler lines with the engine running and at temp and the lines are not even warm, go drive it hard and feel tham and they are 200+ deg

see item #9 in the below link

http://www.realoem.com/bmw/showparts...71&hg=11&fg=30

excellent info

10-19-2008, 07:22 AM	#1
josh Private First Class 12 Rep 127 Posts Drives: E36 M3, 135i Join Date: Oct 2007 iTrader: (0)	First time in the cold I started the 135i yesterday (with 19F on the thermometer), and the tire sensor icon was up. Looked around, all tires seemed OK, but the pressure gauge showed 30-31 psi all around. Drove up to a gas station, brought them up to 36, and was able to reset it. Kinda cool, actually; I never thought about tire pressure going up and down with temperature. I also noticed oil temperature never got above ~200, whereas same type of driving the day before (in ~50-55F) had it up to 230-240. Gas mileage was also down about 1 mpg. Do these cars have an oil thermostat?
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10-19-2008, 10:24 AM	#2
135iUSN 19 X5 1998 M Roadster 64 Rep 1,503 Posts Drives: 135i Alpine White / Terra Join Date: Sep 2008 Location: SW Florida iTrader: (1) Garage List 1998 BMW M Roadster [0.00] 2009 135i [0.00]	got me and congrats on the senior moment (100 posts) __________________ '09 135i Dinan In BMW heaven 09.28.2022 - Stage 2/Alpine White w/Terracotta /High Gloss Black Trim/ZCW/ZPP/ZSP w/313's /CA/PDC/Steptronic/
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10-20-2008, 07:24 AM	#4
imported_mega Colonel 123 Rep 2,200 Posts Drives: various bmw's Join Date: Jul 2007 Location: neverland iTrader: (0)	it dont look like it's got a thermostat in the oil cooler http://www.realoem.com/bmw/showparts...75&hg=17&fg=05 I thought it would, older bmw's have them __________________ You only need two tools in life - WD-40 and Duct Tape. If it doesn't move and should, use the WD-40. If it shouldn't move and does, use the duct tape. Driving e82, e72, e85, R53 Gone but not forgotten.. 1974 2002, many various 3s.
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10-27-2008, 04:10 PM	#6
warmtoes Lieutenant Colonel 31 Rep 1,917 Posts Drives: EBII 435i xDrive Join Date: Apr 2008 Location: Vancouver iTrader: (1)	It's not just OEM tires it's summer tires in general that have issue once you get close to freezing. I read a week back or so that once it gets to -15 Celsius they lose all grip. __________________ *2014 EBII 435i xDrive M-sport* Gone: 2011 TiAg F25 X3 xDrive35i M-sport Gone: 2008 TiAg w/Coral Red E88 135i Cab M-sport
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