Replacement Parts, Operating Materials, And Consumables
WARNING: This page is about a different car, the 2025 Audi A4 allroad and 2025 Audi A4 Quattro. However, it is still accessible from the selected car via links, so may be relevant.
Replacement Parts:
- The degree of disassembly described in the repair information has been approved by the manufacturer and must be followed.
- In order to ensure that the repair quality is in line with the manufacturer specifications, using original replacement parts is recommended. Refer to the Electronic Parts information (ETKA).
- All information and technical specifications are for original replacement parts.
- The components must be checked for damage and function before installation.
Coolant hose installation guidelines:
- Only use water/coolant additive as a lubricant for coolant hoses.
Installation guidelines for radiators, condensers, and charge air coolers:
- After installation, the radiator, condenser, and charge air cooler may have slight indentations on the slats. This is not damage. Do not replace the radiator, condenser, or charge air cooler because of those small indentations.
Installation guidelines for passenger protection components:
- Pyrotechnic components may not be opened or repaired. Only use new parts.
- Pyrotechnic components that have fallen down or are showing damage may no longer be installed.
- Protect the airbag control module, pressure and crash sensors from impacts: do not use crash sensors that have fallen down.
- Remove the pressure sensor for body work on the door.
- Avoid major contamination of the pressure sensor and do not use compressed air in the area of the pressure sensor.
- Protect the pressure sensor from filing or drilling shavings (e.g. for the subsequent installation of door speakers).
- Do not use cavity sealant or spray oil int he area of the pressure sensor.
- Protect the pressure sensors from moisture during installation.
- For the pressure sensor to function correctly, the door must seal correctly after it is assembled.
- All components (such as the cover, speaker, and door trim panel) must be installed correctly.
- Door trim panel clips seal the system. Replace all damaged fasteners.
Operating materials and consumables:
- To ensure a repair quality that is in line with the manufacturer's specifications, it is recommended to use the operating materials and consumables offered by the manufacturer. Refer to Electronic Parts information (ETKA).
- Pay attention to the processing information on the label as specified by the manufacturer.
- Use operating materials and consumables within the specified storage life.
Information about coolant:
- Do not reuse used coolant.
- Demineralized, deionized, distilled water must be used to mix the coolant concentrate due to country and region specific differences in the contents in tap water.
- Only use coolant additives approved for the vehicle.
- The coolant freeze protection must be set to -25 °C (-13 °F). In countries with an arctic climate, the coolant freeze protection must be set to -36 °C (-32.8 °F). The freeze protection may be increased if stronger freeze protection is necessary based on the climate. If necessary, the freeze protection can be set to a minimum of -52 °C (-61.6 °F), otherwise the cooling effect of the coolant will decrease.
- Coolant mixture ratio for 5 liters of coolant:
| Freeze protection | Coolant concentrate ratio | Coolant concentrate | Water, based on the criteria listed above |
|---|---|---|---|
| -25 °C (-13 °F) | 40% | 2.0 liters | 3.0 liters |
| -36 °C (-32.8 °F) | 50 % | 2.5 liters | 2.5 liters |
| -52 °C (-61.6 °F) | 60 % | 3.0 liters | 2.0 liters |
- Coolant mixture ratio for 10 liters of coolant:
| Freeze protection | Coolant concentrate ratio | Coolant concentrate | Water, based on the criteria listed above |
|---|---|---|---|
| -25 °C (-13 °F) | 40% | 4.0 liters | 6.0 liters |
| -36 °C (-32.8 °F) | 50 % | 5.0 liters | 5.0 liters |
| -52 °C (-61.6 °F) | 60 % | 6.0 liters | 4.0 liters |
Information about brake fluid:
- Brake fluid is toxic and it must not come into contact with articles of clothing or parts of the body due to its corrosive effect.
- Brake fluid is hygroscopic. This means that brake fluid takes the moisture from the surrounding air.
- Bottles must always be stored in sealed, airtight containers and must be sealed again immediately after use.
- Rinse off leaking brake fluid with water.
Information about the refrigerant oil:
- Refrigerant oil is strongly hygroscopic. This means that refrigerant oil takes the moisture from the surrounding air.
- Bottles must always be stored in sealed, airtight containers and must be sealed again immediately after use.