Check Engine Light!...1st Time
#11
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My Ride: 04' 545, 6 Spd Manual, Blk Lthr, Sport Pkg, Sport Sts, Logic 7, Cold Wthr Pkg, Full L.E.D. Interior, Red Eng. Cvr, Mtech Front Bmpr, M5 Spoiler, Matte Blk Grill, Red Caps, Slttd & Drlld Rotors, 20
Model Year: 2004
Thank you for all who replied... I didn't get a chance to check the ohms. I just went ahead and replaced the thermostat and cleared the code. I've been driving for a couple of days now and the code hasn't come back so I'm guessing I'm ok. Thermostat was only $60 at the dealer n I did it myself took about an hr considering where I changed it at. Thanks.
#12
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My Ride: 04' 545, 6 Spd Manual, Blk Lthr, Sport Pkg, Sport Sts, Logic 7, Cold Wthr Pkg, Full L.E.D. Interior, Red Eng. Cvr, Mtech Front Bmpr, M5 Spoiler, Matte Blk Grill, Red Caps, Slttd & Drlld Rotors, 20
Model Year: 2004
Ok, so I was driving yesterday and my CEL came on again with the same message. Checked the code and once again P0128 something about the coolant temp low (i should have written it down).I cleared the code to see if it pops back up and BOOM came back on today, keep in mind I drove the car all day yesterday after clearing it. What are the chances the new thermostat is faulty, has anyone had this problem. The light was off since I first posted this thread until now.Could this be anything else? All help is appreciated.
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My Ride: Jet Black '05 545i, Sport/Premium Pkg, Steptronic, Adaptive Xenon, Nav, L7, Blue2th, PDC,
I replaced this coolant temp sensor (pt# 13-62-1-433-076) before doing the thermo thinking it was causing my CEL light. Turned out to be my thermostat, but this does sense the temp of coolant going into engine. This part is relatively cheap and real easy to replace, it's about $10 usd. It's right on the water pump housing just above the thermo. Good luck
#14
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My Ride: 04' 545, 6 Spd Manual, Blk Lthr, Sport Pkg, Sport Sts, Logic 7, Cold Wthr Pkg, Full L.E.D. Interior, Red Eng. Cvr, Mtech Front Bmpr, M5 Spoiler, Matte Blk Grill, Red Caps, Slttd & Drlld Rotors, 20
Model Year: 2004
I replaced this coolant temp sensor (pt# 13-62-1-433-076) before doing the thermo thinking it was causing my CEL light. Turned out to be my thermostat, but this does sense the temp of coolant going into engine. This part is relatively cheap and real easy to replace, it's about $10 usd. It's right on the water pump housing just above the thermo. Good luck
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My Ride: Jet Black '05 545i, Sport/Premium Pkg, Steptronic, Adaptive Xenon, Nav, L7, Blue2th, PDC,
Like previously mention I'd check the resistance on your thermo before removing it again. Did you save your old thermostat? If you did check that too so you can compare the two. Good luck
#16
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My Ride: 04' 545, 6 Spd Manual, Blk Lthr, Sport Pkg, Sport Sts, Logic 7, Cold Wthr Pkg, Full L.E.D. Interior, Red Eng. Cvr, Mtech Front Bmpr, M5 Spoiler, Matte Blk Grill, Red Caps, Slttd & Drlld Rotors, 20
Model Year: 2004
You'll see this sensor just above the thermo location, you can't miss it. A two pin connector staring straight at ya (right below the tube leading into the throttle body). Just disconnect and use an adjustable wrench to remove or, a large deep socket (forgot what size).
Like previously mention I'd check the resistance on your thermo before removing it again. Did you save your old thermostat? If you did check that too so you can compare the two. Good luck
Like previously mention I'd check the resistance on your thermo before removing it again. Did you save your old thermostat? If you did check that too so you can compare the two. Good luck
#17
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My Ride: 04' 545, 6 Spd Manual, Blk Lthr, Sport Pkg, Sport Sts, Logic 7, Cold Wthr Pkg, Full L.E.D. Interior, Red Eng. Cvr, Mtech Front Bmpr, M5 Spoiler, Matte Blk Grill, Red Caps, Slttd & Drlld Rotors, 20
Model Year: 2004
Sometimes a burned out thermostat heater coil will generate a P0128. Also many other things it could be, but this one is easy to check.
Pull the harness connector off the thermostat and measure the resistance between the two contacts on the thermostat. Should be around 16ohms. If it measures 1 that means and open circuit (infinite resistance) and the coil is gone.
Coil is designed to help the thermostat open faster under heavy engine load and if the coil is burned out it really won't hurt anything (or affect emissions) but the light is annoying. Thermostat must be replaced.
Pull the harness connector off the thermostat and measure the resistance between the two contacts on the thermostat. Should be around 16ohms. If it measures 1 that means and open circuit (infinite resistance) and the coil is gone.
Coil is designed to help the thermostat open faster under heavy engine load and if the coil is burned out it really won't hurt anything (or affect emissions) but the light is annoying. Thermostat must be replaced.
You'll see this sensor just above the thermo location, you can't miss it. A two pin connector staring straight at ya (right below the tube leading into the throttle body). Just disconnect and use an adjustable wrench to remove or, a large deep socket (forgot what size).
Like previously mention I'd check the resistance on your thermo before removing it again. Did you save your old thermostat? If you did check that too so you can compare the two. Good luck
Like previously mention I'd check the resistance on your thermo before removing it again. Did you save your old thermostat? If you did check that too so you can compare the two. Good luck
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My Ride: Jet Black '05 545i, Sport/Premium Pkg, Steptronic, Adaptive Xenon, Nav, L7, Blue2th, PDC,
Use this site (where I bought mine)
BMW Parts - BMW Auto Parts - Discount BMW Parts - Bimmer Parts Web
or this
BMW Parts, Porsche Parts, Audi VW Mini Volvo Saab Mercedes Auto Parts - RM European Auto Parts
I believe it's the same company. I bought the OEM for ~$13 usd and it got here (Vegas) in 2 days.
BMW Parts - BMW Auto Parts - Discount BMW Parts - Bimmer Parts Web
or this
BMW Parts, Porsche Parts, Audi VW Mini Volvo Saab Mercedes Auto Parts - RM European Auto Parts
I believe it's the same company. I bought the OEM for ~$13 usd and it got here (Vegas) in 2 days.
#19
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My Ride: 04' 545, 6 Spd Manual, Blk Lthr, Sport Pkg, Sport Sts, Logic 7, Cold Wthr Pkg, Full L.E.D. Interior, Red Eng. Cvr, Mtech Front Bmpr, M5 Spoiler, Matte Blk Grill, Red Caps, Slttd & Drlld Rotors, 20
Model Year: 2004
Use this site (where I bought mine)
BMW Parts - BMW Auto Parts - Discount BMW Parts - Bimmer Parts Web
or this
BMW Parts, Porsche Parts, Audi VW Mini Volvo Saab Mercedes Auto Parts - RM European Auto Parts
I believe it's the same company. I bought the OEM for ~$13 usd and it got here (Vegas) in 2 days.
BMW Parts - BMW Auto Parts - Discount BMW Parts - Bimmer Parts Web
or this
BMW Parts, Porsche Parts, Audi VW Mini Volvo Saab Mercedes Auto Parts - RM European Auto Parts
I believe it's the same company. I bought the OEM for ~$13 usd and it got here (Vegas) in 2 days.
#20
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My Ride: 04' 545, 6 Spd Manual, Blk Lthr, Sport Pkg, Sport Sts, Logic 7, Cold Wthr Pkg, Full L.E.D. Interior, Red Eng. Cvr, Mtech Front Bmpr, M5 Spoiler, Matte Blk Grill, Red Caps, Slttd & Drlld Rotors, 20
Model Year: 2004
Got in the car today after the gym... Light randomly is gone no clearing or anything its just off. Im stumped. anyone?