Z4 E86 3.0si 2007 - Thermostat Opening?
Discussion
I researched this when I had my 130i LE and it's normal...
As per the tinterwebs:
"the BMW N52 engine has an electronically mapped thermostat and a variable-speed electric water pump that regulate the coolant temperature dynamically between 95°C and 112°C (203°F - 233°F).
The ECU targets different temperatures depending on your driving style to optimize fuel economy and reduce emissions.
The ECU utilizes four primary temperature maps based on operating conditions:
112°C (233°F) - Economy Mode: Used during low-load driving. Higher temperatures reduce internal engine friction to improve fuel efficiency
105°C (221°F) - Normal Mode: The standard operating range for most daily driving conditions.
95°C (203°F) - High Mode: Used when moderate to higher loads are detected.
80°C (176°F) - Mapped Thermostat Mode: Activated during spirited driving or heavy loads.
The ECU sends an electrical signal to the thermostat's built-in heater to open the valve fully, lowering the temperature to 80°C to maximize performance and prevent engine knock"
As per the tinterwebs:
"the BMW N52 engine has an electronically mapped thermostat and a variable-speed electric water pump that regulate the coolant temperature dynamically between 95°C and 112°C (203°F - 233°F).
The ECU targets different temperatures depending on your driving style to optimize fuel economy and reduce emissions.
The ECU utilizes four primary temperature maps based on operating conditions:
112°C (233°F) - Economy Mode: Used during low-load driving. Higher temperatures reduce internal engine friction to improve fuel efficiency
105°C (221°F) - Normal Mode: The standard operating range for most daily driving conditions.
95°C (203°F) - High Mode: Used when moderate to higher loads are detected.
80°C (176°F) - Mapped Thermostat Mode: Activated during spirited driving or heavy loads.
The ECU sends an electrical signal to the thermostat's built-in heater to open the valve fully, lowering the temperature to 80°C to maximize performance and prevent engine knock"
danb79 said:
I researched this when I had my 130i LE and it's normal...
As per the tinterwebs:
"the BMW N52 engine has an electronically mapped thermostat and a variable-speed electric water pump that regulate the coolant temperature dynamically between 95°C and 112°C (203°F - 233°F).
The ECU targets different temperatures depending on your driving style to optimize fuel economy and reduce emissions.
The ECU utilizes four primary temperature maps based on operating conditions:
112°C (233°F) - Economy Mode: Used during low-load driving. Higher temperatures reduce internal engine friction to improve fuel efficiency
105°C (221°F) - Normal Mode: The standard operating range for most daily driving conditions.
95°C (203°F) - High Mode: Used when moderate to higher loads are detected.
80°C (176°F) - Mapped Thermostat Mode: Activated during spirited driving or heavy loads.
The ECU sends an electrical signal to the thermostat's built-in heater to open the valve fully, lowering the temperature to 80°C to maximize performance and prevent engine knock"
Thanks for clearing that up, Dan! Cheers!!As per the tinterwebs:
"the BMW N52 engine has an electronically mapped thermostat and a variable-speed electric water pump that regulate the coolant temperature dynamically between 95°C and 112°C (203°F - 233°F).
The ECU targets different temperatures depending on your driving style to optimize fuel economy and reduce emissions.
The ECU utilizes four primary temperature maps based on operating conditions:
112°C (233°F) - Economy Mode: Used during low-load driving. Higher temperatures reduce internal engine friction to improve fuel efficiency
105°C (221°F) - Normal Mode: The standard operating range for most daily driving conditions.
95°C (203°F) - High Mode: Used when moderate to higher loads are detected.
80°C (176°F) - Mapped Thermostat Mode: Activated during spirited driving or heavy loads.
The ECU sends an electrical signal to the thermostat's built-in heater to open the valve fully, lowering the temperature to 80°C to maximize performance and prevent engine knock"
Gassing Station | BMW General | Top of Page | What's New | My Stuff