Maintenance schedule

2019 Audi A4 maintenance schedule

Every service on the 2019 A4, with its interval and an estimated cost.

B9 (5th gen, 2017–2025) · 2.0L TFSI I4 (A4 40 TFSI) / 2.0L TFSI I4 (A4 45 TFSI) · Rev + Daniel Georgiev

The 2019 Audi A4 oil change interval is every 10,000 mi or 12 months, whichever comes first (estimated cost $90-$150). Minor Maintenance at 10,000 mi or 1 year, then Minor and Standard Maintenance alternate (each every 20,000 mi or 2 years), so oil and filter every 10,000 mi or 12 months. Audi gives no severe-service number: under severe conditions (such as extremely low temperatures or excessive dust) engine oil changes must be done in between the given intervals.

Brake Fluid
24mo
Brake Inspection
10,000mi
≈ 16,000km
12 mo
Battery Inspection
20,000mi
≈ 32,000km
24 mo
Cabin Air Filter
20,000mi
≈ 32,000km
24 mo

Service intervals

Your car

From the 2019 Audi A4 schedule.

From the 2019 Audi A4 schedule.
ServiceEveryEst. CostStatus
Engine Oil & FilterSafety itemMinor Maintenance at 10,000 mi or 1 year, then Minor and Standard Maintenance alternate (each every 20,000 mi or 2 years), so oil and filter every 10,000 mi or 12 months. Audi gives no severe-service number: under severe conditions (such as extremely low temperatures or excessive dust) engine oil changes must be done in between the given intervals.10,000 mi / 12 mo≈ 16,000 km / 12 mo$90-$150
Brake InspectionInspect: brake pad thickness at every Minor and Standard Maintenance; brake hoses and bleeder caps at Standard Maintenance. MY2017 schedule also: check brake disc thickness every 40,000 mi or 4 years.10,000 mi / 12 mo≈ 16,000 km / 12 mo—
Battery InspectionInspect at Standard Maintenance: check the state of health of the connected box battery (Audi connected services) with the diagnostic tester. MY2017 also: check the 12 V battery terminals, mounting and housing; replace if necessary.20,000 mi / 24 mo≈ 32,000 km / 24 mo—
Cabin Air FilterReplace the dust and pollen filter.20,000 mi / 24 mo≈ 32,000 km / 24 mo$25-$60
Engine Air FilterReplace the air filter element. Under severe conditions (such as excessive dust) Audi says to clean or replace it in between the given intervals; no number given.60,000 mi≈ 97,000 km$30-$70
Brake FluidSafety itemChange brake fluid every 2 years regardless of mileage.24 mo$100-$180
Dual-Clutch Transmission Fluid (7-speed S tronic only)Change the S tronic transmission fluid. Not applicable to the 6-speed manual (2017–2018 quattro).40,000 mi≈ 64,000 km$350-$550
Spark PlugsReplace spark plugs every 40,000 mi or 6 years, whichever occurs first.40,000 mi / 72 mo≈ 64,000 km / 72 mo$200-$350

≈ converted from the other unit and rounded.

Est. costs are US-typical, in USD.

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The 2019 Audi A4 (B9 generation) uses a 2.0L TFSI turbocharged four-cylinder in two US versions, the front-wheel-drive 40 TFSI and the 45 TFSI with quattro all-wheel drive, both with a 7-speed S tronic dual-clutch transmission. This schedule follows Audi's US maintenance schedule for the 2019 model year, including the S tronic fluid change every 40,000 miles.

What happens if you skip it

  • Skipping brake fluid flushes allows moisture absorption that corrodes ABS modules and brake calipers, leading to expensive electronic repairs and reduced braking performance.

Common issues at higher mileage

60,000+ mi
Water pump failure is common on 2.0T TFSI engines, often presenting as coolant leaks or overheating; proactive replacement around 60-80k miles prevents roadside breakdowns.
50,000+ mi
Intake manifold flap actuators may fail, triggering check engine lights and limp mode; carbon buildup exacerbates mechanical binding of the flap system.
70,000+ mi
Thermostat housing develops coolant leaks due to plastic component degradation, causing temperature regulation issues and potential overheating.
80,000+ mi
PCV system components may degrade, leading to excessive oil consumption and rough running; this is a known weakness on TFSI engines requiring valve or breather system service.
100,000+ mi
Timing chain tensioner wear may cause rattling on cold starts; while chains don't require replacement like belts, tensioner and guide updates prevent catastrophic failure.

Common questions about the 2019 Audi A4

How often does a 2019 Audi A4 need an oil change?

The 2019 Audi A4 oil change interval is every 10,000 mi or 12 months, whichever comes first (estimated cost $90-$150). Minor Maintenance at 10,000 mi or 1 year, then Minor and Standard Maintenance alternate (each every 20,000 mi or 2 years), so oil and filter every 10,000 mi or 12 months. Audi gives no severe-service number: under severe conditions (such as extremely low temperatures or excessive dust) engine oil changes must be done in between the given intervals.

What maintenance does a 2019 Audi A4 need?

The services not to skip on a 2019 Audi A4: engine oil & filter every 10,000 mi / 12 mo; brake fluid every 24 mo. The table above lists every service with its interval and an estimated cost.

What goes wrong on a Audi A4 at higher mileage?

What owners report as the miles add up — 60,000+ mi: Water pump failure is common on 2.0T TFSI engines, often presenting as coolant leaks or overheating; proactive replacement around 60-80k miles prevents roadside breakdowns. 50,000+ mi: Intake manifold flap actuators may fail, triggering check engine lights and limp mode; carbon buildup exacerbates mechanical binding of the flap system. 70,000+ mi: Thermostat housing develops coolant leaks due to plastic component degradation, causing temperature regulation issues and potential overheating. 80,000+ mi: PCV system components may degrade, leading to excessive oil consumption and rough running; this is a known weakness on TFSI engines requiring valve or breather system service. 100,000+ mi: Timing chain tensioner wear may cause rattling on cold starts; while chains don't require replacement like belts, tensioner and guide updates prevent catastrophic failure.

Keep this schedule for your A4

Log what you've done, get reminded what's next. Rev knows the intervals for your A4.

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