Should I Buy an Aftermarket Thermostat or an OEM?

BMWM3DREAM · 11-11-2024, 11:35 AM

My 2015 528i has a check engine light that an independent mechanic said is indicative of a bad thermostat with his scanner. Should I buy an OEM thermostat or should I buy an aftermarket one? I think the mechanic mentioned that if I were to buy it from him he would buy an aftermarket thermostat which starts with the letter 'B'.

Trian · 11-11-2024, 01:02 PM

They are cheap, buy OEM

ctcarbonari · 11-11-2024, 01:04 PM

Quote:

Originally Posted by Trian

They are cheap, buy OEM

+1 to ^this^

Hoa · 11-11-2024, 01:40 PM

I would recommend this. They make it for BMW 528i.

https://www.fcpeuro.com/products/bmw...at-11537633476

Cvx5832 · 11-11-2024, 02:25 PM

+1. Mahle is reputable. Meyle is not.

ChiltiCoatl89 · 11-12-2024, 12:20 AM

Quote:

Originally Posted by Hoa

I would recommend this. They make it for BMW 528i.

https://www.fcpeuro.com/products/bmw...at-11537633476

+1 to this!

BMWM3DREAM · 11-12-2024, 11:42 AM

Quote:

Originally Posted by Hoa

I would recommend this. They make it for BMW 528i.

https://www.fcpeuro.com/products/bmw...at-11537633476

Would you say this item is better than the OEM part or is it only a matter of saving money that you recommend I buy this brand of thermostat? The reason being is it's not so much about money but quality that I am after.

Hoa · 11-12-2024, 11:56 AM

Quote:

Originally Posted by BMWM3DREAM

Would you say this item is better than the OEM part or is it only a matter of saving money that you recommend I buy this brand of thermostat? The reason being is it's not so much about money but quality that I am after.

They produce it for BMW. They sell it under their own brand without BMW logo so it’s cheaper.

BMWM3DREAM · 11-13-2024, 02:31 PM

Thank you all for the input. Now, when I turned the car on and drove it, the check engine light doesn't appear anymore. I had to cancel the order for the thermostat unit. Do you think I should go through the hassle and get it re-scanned to see if the error code for the thermostat would still be present. Hassle because mechanics are always pissed off.

Has this ever happened to you in regard to error codes or light symbols?

ChiltiCoatl89 · 11-13-2024, 09:20 PM

Why did you cancel the order for the Thermostat? I would have the part ready incase the code reappears. When was the last time the Wp was serviced?

BMWM3DREAM · 11-14-2024, 10:19 AM

Quote:

Originally Posted by ChiltiCoatl89

Why did you cancel the order for the Thermostat? I would have the part ready incase the code reappears. When was the last time the Wp was serviced?

I thought the problem was perhaps a sensor error. I will most likely have to attempt to buy it today. I don't know what is meant by "wp."

Trian · 11-14-2024, 10:34 AM

wp is waterpump

BMWM3DREAM · 11-14-2024, 11:05 AM

Quote:

Originally Posted by ChiltiCoatl89

Why did you cancel the order for the Thermostat? I would have the part ready incase the code reappears. When was the last time the Wp was serviced?

The water pump has never been serviced. My car only has 44,450 miles on it.

ChiltiCoatl89 · 11-14-2024, 08:43 PM

How often is it driven? I would get a second opinion or get Bimmerlink and read those codes out to us.

BMWM3DREAM · 11-15-2024, 11:37 AM

Quote:

Originally Posted by ChiltiCoatl89

How often is it driven? I would get a second opinion or get Bimmerlink and read those codes out to us.

Approximately, 3,700 miles a year since I bought it five and a half years ago.

Trian · 11-15-2024, 03:36 PM

3,700 miles per year and you live in L.A.?

Only go out a couple of times a month?

ChiltiCoatl89 · 11-15-2024, 11:42 PM

Once more, Highly recommend you buy a Bluetooth OBDII that supports Bimmerlink or equivalent, and when you take it out for a drive, monitor the WP RPM and coolant temps, and more! So if it does happen again, you can supply yourself with data in relation to such fault.

Tyronne · 12-08-2024, 07:32 AM

I would go with OEM.

Tyronne · 12-08-2024, 07:33 AM

I would go with OEM.

Tyronne · 12-08-2024, 07:33 AM

I would go with OEM.

Tyronne · 12-08-2024, 07:40 AM

I would go with OEM.

Tyronne · 12-08-2024, 07:40 AM

I would go with OEM.

11-11-2024, 11:35 AM	#1
BMWM3DREAM Captain 202 Rep 904 Posts Drives: 2016 535i Join Date: Oct 2008 Location: Los Angeles, California iTrader: (0)	Should I Buy an Aftermarket Thermostat or an OEM? My 2015 528i has a check engine light that an independent mechanic said is indicative of a bad thermostat with his scanner. Should I buy an OEM thermostat or should I buy an aftermarket one? I think the mechanic mentioned that if I were to buy it from him he would buy an aftermarket thermostat which starts with the letter 'B'.
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11-11-2024, 01:02 PM	#2
Trian Second Lieutenant 95 Rep 288 Posts Drives: 2021 540xi M-Sport Join Date: Sep 2015 Location: Victoria, B.C. iTrader: (0)	They are cheap, buy OEM
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11-11-2024, 01:40 PM	#4
Hoa Major 746 Rep 1,628 Posts Drives: BMW Join Date: May 2010 Location: GA iTrader: (10)	I would recommend this. They make it for BMW 528i. https://www.fcpeuro.com/products/bmw...at-11537633476
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11-11-2024, 02:25 PM	#5
Cvx5832 Private 45 Rep 86 Posts Drives: ‘15 535i M-Sport Join Date: Jul 2018 Location: Walnut Creek, CA iTrader: (0)	+1. Mahle is reputable. Meyle is not. __________________
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11-13-2024, 02:31 PM	#9
BMWM3DREAM Captain 202 Rep 904 Posts Drives: 2016 535i Join Date: Oct 2008 Location: Los Angeles, California iTrader: (0)	Thank you all for the input. Now, when I turned the car on and drove it, the check engine light doesn't appear anymore. I had to cancel the order for the thermostat unit. Do you think I should go through the hassle and get it re-scanned to see if the error code for the thermostat would still be present. Hassle because mechanics are always pissed off. Has this ever happened to you in regard to error codes or light symbols?
	Appreciate 0 Quote

11-13-2024, 09:20 PM	#10
ChiltiCoatl89 Captain 2024 Rep 649 Posts Drives: 2016 F10 BMW 535i M Sport Join Date: Jun 2023 Location: Nevada iTrader: (0) Garage List 2016 BMW 535i M Sport [8.36]	Why did you cancel the order for the Thermostat? I would have the part ready incase the code reappears. When was the last time the Wp was serviced?
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11-14-2024, 10:34 AM	#12
Trian Second Lieutenant 95 Rep 288 Posts Drives: 2021 540xi M-Sport Join Date: Sep 2015 Location: Victoria, B.C. iTrader: (0)	wp is waterpump
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11-14-2024, 08:43 PM	#14
ChiltiCoatl89 Captain 2024 Rep 649 Posts Drives: 2016 F10 BMW 535i M Sport Join Date: Jun 2023 Location: Nevada iTrader: (0) Garage List 2016 BMW 535i M Sport [8.36]	How often is it driven? I would get a second opinion or get Bimmerlink and read those codes out to us.
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11-15-2024, 03:36 PM	#16
Trian Second Lieutenant 95 Rep 288 Posts Drives: 2021 540xi M-Sport Join Date: Sep 2015 Location: Victoria, B.C. iTrader: (0)	3,700 miles per year and you live in L.A.? Only go out a couple of times a month?
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11-15-2024, 11:42 PM	#17
ChiltiCoatl89 Captain 2024 Rep 649 Posts Drives: 2016 F10 BMW 535i M Sport Join Date: Jun 2023 Location: Nevada iTrader: (0) Garage List 2016 BMW 535i M Sport [8.36]	Once more, Highly recommend you buy a Bluetooth OBDII that supports Bimmerlink or equivalent, and when you take it out for a drive, monitor the WP RPM and coolant temps, and more! So if it does happen again, you can supply yourself with data in relation to such fault.
	Appreciate 1 ctcarbonari507.00 Quote

12-08-2024, 07:32 AM	#18
Tyronne New Member 0 Rep 11 Posts Drives: 19 BMW 530i xdrive sport line Join Date: Dec 2024 Location: Savannah, GA iTrader: (0)	I would go with OEM.
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12-08-2024, 07:33 AM	#19
Tyronne New Member 0 Rep 11 Posts Drives: 19 BMW 530i xdrive sport line Join Date: Dec 2024 Location: Savannah, GA iTrader: (0)	I would go with OEM.
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12-08-2024, 07:40 AM	#21
Tyronne New Member 0 Rep 11 Posts Drives: 19 BMW 530i xdrive sport line Join Date: Dec 2024 Location: Savannah, GA iTrader: (0)	I would go with OEM.
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