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DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2018 Audi A3Oil Type & Capacity
OEM spec from the factory service manual for the Premium Plus, 2D Convertible variant.
Quick Answer
Oil Type
Castrol EDGE Professional SAE 0W-20 Long Life IV. VW 508 00, VW 509 00
Capacity (w/ Filter)
6.00 QTS.
5.67 L
Variant
Premium Plus, 2D Convertible
Note: Refer to Technical Bulletin 2010043 for engine oils meeting the required Audi oil quality standards.
Part numbers are for reference only.
Approximate capacity.
Source: Factory service manual — 2018 Audi A3 Premium Plus, 2D Convertible. View full manual section →
What You'll Need
Frequently Asked Questions
- What type of oil does a 2018 Audi A3 take?
- The 2018 Audi A3 requires Castrol EDGE Professional SAE 0W-20 Long Life IV. VW 508 00, VW 509 00. The exact spec may vary slightly by engine variant — this page shows the OEM recommendation for the Premium Plus, 2D Convertible configuration.
- How much oil does a 2018 Audi A3 need?
- The 2018 Audi A3 takes 6.00 QTS. (5.67 L) of engine oil with the filter replaced.
- Can I use synthetic oil in my 2018 Audi A3?
- Yes — synthetic oil that meets the Castrol EDGE Professional SAE 0W-20 Long Life IV. VW 508 00, VW 509 00 specification is acceptable and often preferred for better protection and longer change intervals.
- What happens if I use the wrong oil in my 2018 Audi A3?
- Using oil that does not meet the Castrol EDGE Professional SAE 0W-20 Long Life IV. VW 508 00, VW 509 00 specification can reduce engine protection, increase wear, and potentially void warranty coverage. Always use oil that meets the OEM spec.