REPTAT-P-1712-01 Removing coolant hose from cylinder head to coolant expansion tank
WARNING: This page is about a different car, the 2018 BMW 330i and 2017 BMW 330i. However, it is still accessible from the selected car via links, so may be relevant.
Preliminary work
- Disconnect the BATTERY EARTH LEAD
- Remove the FRONT UNDERBODY PROTECTION
- Remove the REAR ACOUSTIC COVER
- Remove the CHARGE AIR LINE
- Remove the THROTTLE BODY
- Remove the FRONT ACOUSTIC COVER
- Remove the ALTERNATOR DRIVE BELT
- Remove the AIR CONDITIONING COMPRESSOR
- Remove the ALTERNATOR
Prerequisite
- Ignition is switched off.
WARNING:
Hot surfaces.
Risk of burning!
Risk of burning!
- Perform all work only on components that have cooled down.
WARNING:
Working on 12 V electrical system.
Risk of short circuits! Risk of fire!
Risk of short circuits! Risk of fire!
- Make sure that there is no charger connected to the jump start terminal in the engine compartment.
- Detach battery ground lead from battery.
- For auxiliary batteries: Detach battery minus cables from all auxiliary batteries.
WARNING:
Hot fluids.
Risk of scalding!
Risk of scalding!
- Conduct all work in the vehicle wearing appropriate personal protective equipment only.
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
Follow notes for repair work on the cooling system.
For additional information see:
NOTES for repair work on the cooling system
TECHNICAL INFORMATION
Filling without the vacuum filling equipment (watering can filling) is not permitted.
Failure to observe this rule runs the risk of component damage/engine damage.
Filling specification absolutely must be adhered to.
It is not permissible to operate the vehicle if the filling procedure has not been fully completed. Otherwise functional limitations (degradation) and/or overheating may result.
A bleeding procedure is required after a part has been exchanged in the cooling system and/or after refilling the cooling system.
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.
TECHNICAL INFORMATION
Collect and dispose of emerging fluids. Observe country-specific waste disposal regulations.
Follow notes for repair work on the cooling system.
For additional information see:
NOTES for repair work on the cooling system
TECHNICAL INFORMATION
Filling without the vacuum filling equipment (watering can filling) is not permitted.
Failure to observe this rule runs the risk of component damage/engine damage.
Filling specification absolutely must be adhered to.
It is not permissible to operate the vehicle if the filling procedure has not been fully completed. Otherwise functional limitations (degradation) and/or overheating may result.
A bleeding procedure is required after a part has been exchanged in the cooling system and/or after refilling the cooling system.
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.
TECHNICAL INFORMATION
Collect and dispose of emerging fluids. Observe country-specific waste disposal regulations.
- Loosen clamp (1).
- Detach coolant hose (2) and lay to one side.
- Unlock coolant hose (1) and pull off from cylinder head.
- Catch and dispose of escaping coolant.
- Unlock coolant hose (2) and detach from coolant expansion tank (1).
- Feed out coolant hose (2) underneath the intake plenum and remove.