BMW 5 Series Owners & Service Manuals

BMW 5 Series: Coolant

General information

Coolant consists of water and additives.

Not all commercially available additives are suitable for the vehicle. Information about suitable additives is available from a dealer's service center or another qualified service center or repair shop.

Safety information

Warning

With the engine hot and the cooling system open, coolant can escape and lead to scalding.

There is a risk of injury. Only open the cooling system with the engine cooled down.

Warning

Additives are harmful and incorrect additives can damage the engine. There is a risk of injury and risk of damage to property. Do not allow additives to come into contact with skin, eyes or articles of clothing. Use suitable additives only.

Coolant level

General information

Vehicles with gasoline engine feature two cooling circuits. Always check the coolant levels of both coolant reservoirs and refill as needed.

The coolant level is indicted using minimum and maximum markings. Depending on the coolant reservoir, the minimum and maximum markings are located at different locations.

Depending on the engine installation, the coolant reservoir is located on the right side or the left side of the engine compartment.

Checking the coolant level in the filler neck

1. Let the engine cool.

2. Open the hood.

3. Turn the lid of the coolant reservoir slightly counterclockwise to allow any excess pressure to dissipate, then open it.

4. Open the coolant reservoir lid.

5. The coolant level is correct if it lies between the minimum and maximum marks in the filler neck.

6. Close the lid.

6. Close the lid.

Adding

1. Let the engine cool.

2. Open the hood.

3. Turn the lid of the coolant reservoir slightly counterclockwise to allow any excess pressure to dissipate, then open it.

4. Open the coolant reservoir lid.

5. If the coolant is low, slowly add coolant up to the specified level; do not overfill.

6. Close the lid.

7. Have the cause of the coolant loss eliminated as soon as possible.

Disposal

environmentalComply with the relevant environmental protection regulations when disposing of coolant and coolant additives.

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