Remove the radiator of the low-temperature coolant circuit
WARNING: This page is about a different car, the 2025 BMW M4, 2024 BMW M4, 2023 BMW M4, 2022 BMW M4, and 2021 BMW M4. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
TECHNICAL INFORMATION
When the engine is stopped after the completion of trip, it may be necessary to run the electric fan. In rare cases, operation of the electric fan can last up to 11 min. This protects the components. In this case, replacing the electric fan will not remedy the problem!
When the engine is stopped after the completion of trip, it may be necessary to run the electric fan. In rare cases, operation of the electric fan can last up to 11 min. This protects the components. In this case, replacing the electric fan will not remedy the problem!
Preliminary work
- Refer to REMOVING THE FRONT SPOILER .
- Refer to REMOVING THE FRONT UNDERBODY PROTECTION .
- Refer to REMOVING THE FRONT BOTTOM SIDE COVER .
- Refer to REMOVING THE RIGHT HAND FRONT BOTTOM SIDE COVER .
- Refer to REMOVING THE LEFT AND RIGHT FRONT UNDERSHIELD .
- Refer to REMOVING THRUST FIELD .
- Refer to REMOVING THE FRONT-END STRUT .
- Refer to REMOVING THE CLEAN AIR PIPE FOR CYLINDERS 1 TO 3 .
- Refer to REMOVING SEAL FOR FRONT HOOD .
- Refer to REMOVING THE COVER FOR THE CENTER ENGINE COMPARTMENT .
- Refer to REMOVING UPPER CROSS CONNECTION .
- Refer to REMOVING THE REAR TOP CROSS CONNECTION .
- Refer to REMOVING THE RIGHT INTAKE FILTER HOUSING (FRONT-END STRUT REMOVED) .
- Refer to DRAINING THE COOLANT FOR THE HIGH-TEMPERATURE COOLANT CIRCUIT .
- Refer to PARTIALLY RELEASING THE ENGINE OIL COOLER .
- Refer to DRAINING THE COOLANT FROM THE LOW-TEMPERATURE COOLING SYSTEM .
- Refer to REMOVING THE FAN COWL .
WARNING:
Hot surfaces
.
Risk of burning!
Risk of burning!
- Perform all work only on components that have cooled down.
CAUTION:
Materials harmful to health
.
Contact with fluids harmful to health!
Contact with fluids harmful to health!
- Note and follow safety instructions on containers.
- Conduct all work in appropriate personal protective equipment only.
NOTE:
TECHNICAL INFORMATION
Immobilization period-long fill of coolant!
Do not reuse used coolant.
When replacing and removing components which rely on the corrosion protection effect of the coolant, it is essential to change the coolant. The cooling system must therefore be emptied and refilled.
In the case of other removal work involving the draining of part quantities of coolant, the coolant level must be topped up with new coolant.
Immobilization period-long fill of coolant!
Do not reuse used coolant.
When replacing and removing components which rely on the corrosion protection effect of the coolant, it is essential to change the coolant. The cooling system must therefore be emptied and refilled.
In the case of other removal work involving the draining of part quantities of coolant, the coolant level must be topped up with new coolant.
NOTE:
TECHNICAL INFORMATION
Follow notes for repair work on the cooling system.
For additional information see: NOTES FOR WORKING ON THE COOLING SYSTEM (M4 2021-2023) .
Follow notes for repair work on the cooling system.
For additional information see: NOTES FOR WORKING ON THE COOLING SYSTEM (M4 2021-2023) .
NOTE:
TECHNICAL INFORMATION
Collect and dispose of emerging fluids. Observe country-specific waste disposal regulations.
Collect and dispose of emerging fluids. Observe country-specific waste disposal regulations.
- Loosen screws (1).
- Feed the cover (2) out at top and remove.
- Unlock and disconnect the coolant line (1).
- For better accessibility: Press the cooling module (1) in the direction of the arrow.
- Unlock the lock (1) with a screwdriver (2).
- Carefully slide out the radiator of the low-temperature coolant circuit (1) in arrow direction and remove.