REP-TAT-P-1711-01-F30B48 Removing both coolant expansion tanks
WARNING: This page is about a different car, the 2018 BMW 340i, 2017 BMW 340i, and 2016 BMW 340i. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:
Hot surfaces.
Risk of burning!
Risk of burning!
- Perform all work only on components that have cooled down.
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
Use commercially available pinch-off tools to pinch off the coolant hoses.
Use commercially available pinch-off tools to pinch off the coolant hoses.
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 sealing cap (1) and (2).
- Draw off coolant with standard pump
.
- Unlock and release coolant line (arrow).
- Unlock and loosen lock (1).
- Guide out and lift coolant expansion tank (2) from the rubber mounts.
- Unlock and loosen connector (1).
- Unlock and loosen coolant line (2).
- Catch and dispose of escaping coolant.
- Remove the coolant expansion tank (3) towards the top.
- Replacement: Remount coolant expansion tank
- Unlock coolant expansion tank for the low temperature coolant circuit (1) and remove from coolant expansion tank for the high-temperature coolant circuit (2) in direction of arrow.
- Thread in coolant expansion tank for the low temperature coolant circuit (1) in direction of arrow and engage it audibly into the coolant expansion tank for the high-temperature coolant circuit (2).