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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.
1999 Audi A6Oil Type & Capacity
OEM spec from the factory service manual for the Avant Quattro variant.
Quick Answer
Oil Type
SAE 5W-40. Petroleum or synthetic based oils. Engine oil must conform to the exact specification in VW publication VW 502 00. See TSB No. 17 09-07 (2012855).
Capacity (w/ Filter)
6.30 QTS.
5.96 L
Variant
Avant Quattro
Note: Use only a high-quality engine oil that expressly complies with the AUDI oil quality standard specified for your vehicle's engine. Using any other oil can cause serious engine damage that will not be covered by any AUDI Limited Warranty.
DO NOT mix lubricants or other additives into the engine oil. Doing so can cause engine damage. Damaged caused by these kinds of additives are not covered by any AUDI Limited Warranty.
To prevent overfilling add approximately 0.5 less oil than specification listed. Start engine and let it run until engine operating temperature is approx. 140Deg.F (60Deg.C), turn off ignition, wait aproximately 3 minutes and recheck fluid level, then fill to mark (may be more/less than 0.5 QT. depending on model) TURBO ENGINES ONLY: After changing engine oil and filter, start and run engine at idle until oil pressure light goes out. DO NOT rev engine this could cause damage/failure of turbocharger.
Quantities are approximate.
DO NOT overfill.
Source: Factory service manual — 1999 Audi A6 Avant Quattro. View full manual section →
What You'll Need
Engine Oil
SAE 5W-40. Petroleum or synthetic based oils. Engine oil must conform to the exact specification in VW publication VW 502 00. See TSB No. 17 09-07 (2012855). for Audi A6
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Oil Filter
Audi A6 Oil Filter
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Tool
Oil Filter Wrench
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Kit
Funnel + Drain Pan Kit
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Frequently Asked Questions
- What type of oil does a 1999 Audi A6 take?
- The 1999 Audi A6 requires SAE 5W-40. Petroleum or synthetic based oils. Engine oil must conform to the exact specification in VW publication VW 502 00. See TSB No. 17 09-07 (2012855).. The exact spec may vary slightly by engine variant — this page shows the OEM recommendation for the Avant Quattro configuration.
- How much oil does a 1999 Audi A6 need?
- The 1999 Audi A6 takes 6.30 QTS. (5.96 L) of engine oil with the filter replaced.
- Can I use synthetic oil in my 1999 Audi A6?
- Yes — synthetic oil that meets the SAE 5W-40. Petroleum or synthetic based oils. Engine oil must conform to the exact specification in VW publication VW 502 00. See TSB No. 17 09-07 (2012855). specification is acceptable and often preferred for better protection and longer change intervals.
- What happens if I use the wrong oil in my 1999 Audi A6?
- Using oil that does not meet the SAE 5W-40. Petroleum or synthetic based oils. Engine oil must conform to the exact specification in VW publication VW 502 00. See TSB No. 17 09-07 (2012855). specification can reduce engine protection, increase wear, and potentially void warranty coverage. Always use oil that meets the OEM spec.