← All Audi A4 / A5 (45 TFSI) trimsAudi A4 / A5 (45 TFSI)
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Audi A4 / A5 (45 TFSI)
A4 40 Premium
Entry executive sedan.
Top Speed
130mph
0–60 mph
7s
Horsepower
201hp
Price
$42K
Research links
00 / History
The story of this car
Researching Audi A4 / A5 (45 TFSI) A4 40 Premium…
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01 / This trim
What makes this trim its own car
Position in the lineup
Entry / base trim
- Highest top speed of the range — 130 mph.
- Cheapest way into the model at $42K.
- Lightest variant at 3,543 lb.
- Unique drivetrain: FWD.
Ideal buyer
Who this trim is for
Someone who wants into a Audi A4 / A5 (45 TFSI) without paying for the headline numbers. Day-to-day driving is identical to the more expensive trims 90% of the time — you keep the looks, the interior, and most of the tech, and you spend the difference on tires, insurance and fuel.
Probably not for
Track-day regulars and badge-conscious buyers — the higher trims earn their premium when the road gets twisty or the lights drop.
vs other trims
Delta sheet
vs A4 45 Premium Plus
- Price-$5K
- Horsepower-60 hp
- 0–60+1.4s
- Top speedsame
- Weight-282 lb
vs A4 45 Prestige
- Price-$10K
- Horsepower-60 hp
- 0–60+1.4s
- Top speedsame
- Weight-282 lb
02 / Mechanical
What's inside this trim
M.01
Engine / Powerplant
2.0L TFSI turbo I4
M.02
Peak Horsepower
201 hp
M.03
Drivetrain
FWD
M.04
Transmission
7-speed S tronic
M.05
Curb Weight
3,543 lbs
M.06
Power-to-Weight
0.057 hp/lb · 18 lb per hp
M.07
Powertrain
2.0L Turbo I4 mild-Hybrid
M.08
Drivetrain
AWD
M.09
Curb weight
3,704 lbs
03 / Features
What you actually get
Safety & driver assistance
- Forward-collision warning
- Automatic emergency braking
- Lane-departure warning
- Adaptive cruise control
- Blind-spot monitoring
Performance hardware
- Performance brake package
- Launch control
- Adaptive / magnetorheological dampers
- Torque-vectoring AWD
- Multiple drive modes (Comfort / Sport / Track)
Cabin & technology
- Digital instrument cluster
- Premium leather upholstery
- Wireless Apple CarPlay & Android Auto
- Bluetooth + smartphone integration
- Premium audio system
- Heated and cooled seats
04 / Maintenance
Keep it running for the long haul
The Audi A4 / A5 (45 TFSI) will routinely run 250,000+ miles when fluids are changed on time, small leaks are addressed promptly, and OEM parts are used at every service.
Break-in (first 1,000–1,500 mi)
Most powertrain damage happens here. Do these right and the car will outlive its electronics.
- First 600 mi: keep RPM below 4,000 and avoid full-throttle pulls. Vary RPM constantly — no cruise control.
- Avoid highway-speed cruise for >30 min stretches; varied load helps the rings seat properly.
- Do NOT change the factory-fill oil before 1,500 mi unless the manufacturer specifies otherwise — the oil contains break-in additives.
- At 1,500–3,000 mi, perform the first oil change to remove metal break-in particles from ring/bearing seating.
- First 1,000 mi (DCT): drive in normal/automatic mode so the TCM learns clutch wear baseline. Avoid launch control.
| Interval | Task | Why it matters | Priority |
|---|---|---|---|
| Weekly | Cold tire pressure check | Set to door-jamb spec when tires are cold. Underinflation kills sidewalls and fuel/range economy; overinflation reduces grip. | High |
| Weekly | Visual walk-around | Check for fluid spots on the ground, tire condition, light operation, and any new noises before driving off. | Recommended |
| Monthly | Fluid level audit | Open the hood: check engine oil (where dipstick exists), coolant overflow level, brake fluid, washer fluid, power steering (if hydraulic). | High |
| Monthly | Wash + interior vacuum | Salt, road tar and bird droppings etch paint and clearcoat. Use pH-neutral car shampoo, two-bucket method. | Recommended |
| Every 6 months | Wax / ceramic top-up | Paint protection prevents oxidation. Spray-on ceramic boosters extend a base coat for 6–9 months. | Recommended |
| Every 12 months | Wiper blades + washer fluid | Replace both blades; switch to winter blades + de-icer fluid in cold climates. | Recommended |
| Every 12 months | 12V auxiliary battery test | Load-test the 12V battery — even EVs have one, and a weak 12V causes the most no-starts on modern cars. | High |
| Every 24 months | Brake fluid moisture test | Test with a refractometer or strips. >2% water content = flush. Hygroscopic fluid corrodes ABS modulators. | Critical |
| Every 24 months | Alignment check | Even a curb hit can throw alignment off. Mis-alignment burns through $1k+ tire sets quickly. | High |
| Every 7,500 mi / 12 months | Full-synthetic oil + filter change | Modern long-life synthetic at OEM spec. Don't stretch past the time interval even if low mileage — oil degrades by age too. | Critical |
| Every 30,000–60,000 mi | Coolant level + condition check | Use only the OEM-spec coolant (VW G13 / G12evo). Mixing coolant types causes gelling and water-pump failure. | High |
| Every 60,000 mi | Coolant flush + refill | Long-life ≠ lifetime. Old coolant turns acidic and eats aluminum heads. | High |
| Every 15,000 mi | Engine air filter + cabin filter | Restricted intake hurts power and economy. Replace cabin filter sooner in pollen-heavy or urban areas. | Recommended |
| Every 30,000 mi | Iridium spark plugs (turbo-spec gap) | Turbo engines run colder plugs with a tighter gap; check gap with a wire gauge before install. Anti-seize on threads. | High |
| Every 60,000 mi | Charge-pipe + intercooler inspection | Boost leaks at silicone joints rob power. Inspect couplers and PCV system; clean intercooler core if oil-fouled. | High |
| Every 60,000–80,000 mi | Intake valve walnut-blast (DI engines) | Direct-injection engines (BMW N/B-series, VW/Audi TFSI, MB M270/M139, Ford EcoBoost) build hard carbon on intake valves. Walnut-shell blasting restores airflow. | High |
| Every 100,000 mi | Timing chain / belt service | Most modern engines use chains (inspect tensioner & guides); some Audi 2.0/3.0 TDI/TFSI use a belt that MUST be replaced on schedule — failure destroys the engine. | Critical |
| Every 12 months | Brake pad/rotor visual + caliper slide service | Lubricate caliper slide pins with high-temp grease. Replace pads at 3 mm; rotors at minimum thickness or when scored. | Critical |
| Every 24 months / 30,000 mi | Brake fluid flush (DOT 4 or higher) | OEM-spec DOT 4 fluid; bleed all four corners, ABS module, and clutch (if hydraulic). | Critical |
| Every 30,000 mi | Suspension bushing + ball-joint inspection | Check control-arm bushings, sway-bar end links, tie-rod ends and ball joints for play. Worn bushings cause clunks and uneven tire wear. | High |
| Every 50,000 mi | Power steering fluid (if hydraulic) | Electric racks are sealed-for-life. Hydraulic systems need a fluid flush to prevent pump whine. | Recommended |
| Every 30,000 mi | 7-speed S tronic fluid + filter | Dual-clutch boxes (DSG / S tronic) are sensitive — use ONLY the OEM-spec fluid (e.g. manufacturer-fill). Wrong fluid = catastrophic failure within months. | Critical |
| Every 60,000 mi | Clutch pack wear scan | Dealer-level scan tool reads clutch wear %; rebuild before slip damages mechatronic unit ($8k+). | High |
| Every 60,000 mi | PCV diaphragm + carbon-clean | EA888 / EA839 engines suffer carbon buildup and PCV diaphragm tears causing rough idle and oil burn. Walnut-blast + new PCV solves both. | High |
| Every 80,000 mi | Timing belt / water pump (if belt-driven) | 3.0 TFSI/TDI uses a belt — REPLACE on schedule. Most newer Audi engines are chain-driven; check tensioner. | Critical |
| Every 40,000 mi | DSG mechatronic fluid + filter | Use VW G 052 182 (wet DSG) or G 052 529 (dry). Wrong fluid destroys mechatronic unit ($4k+). | Critical |
| Before storage (>30 days) | Fuel stabilizer + battery tender + tire pressure +5 psi | Add Sta-Bil to a full tank, hook a smart tender to the 12V (and Level-1 charge any EV/PHEV), inflate tires +5 psi to prevent flat-spotting, leave windows cracked. | High |
| Coming out of storage | Pre-flight inspection | Check tire pressures, brake function (rotors will be surface-rusted — bed gently), fluid levels, and rodent damage in the engine bay and cabin air intake. | High |
Service milestones
What to expect at each major service stop.
1,000–1,500 mi
- First oil + filter (break-in)
- Re-torque wheels
- TCM relearn (auto/DCT)
- Multipoint inspection
15,000 mi
- Oil + filter
- Tire rotation
- Engine + cabin air filter
- Brake pad measurement
30,000 mi
- DCT/PDK fluid + filter
- Brake fluid flush
- Spark plugs (turbo)
- Rear diff oil
- Suspension inspection
60,000 mi
- Coolant flush
- Brake pads + rotors (likely)
- PCV / valve-cover gasket
- Walnut-blast intake (DI turbo)
- Power steering fluid (if hydraulic)
100,000 mi
- Timing belt (if equipped) + water pump
- Spark plugs (NA)
- Transmission rebuild check
- Motor mounts inspection
- All accessory belts
150,000+ mi
- Suspension overhaul
- Fuel injector clean / replace
- Catalytic converter health (O2 sensors)
- AC condenser + compressor service
Fluid specs
Use only OEM-approved fluids. Wrong fluid = catastrophic gearbox / engine damage.
| Fluid | Spec / Approved Type | Capacity |
|---|---|---|
| Engine oil | 0W-30 / 5W-30 full-synthetic (OEM long-life spec) | ~5–7 qt |
| Coolant | VW G13 / G12evo (lilac) | ~2.5–3.5 gal |
| Brake fluid | DOT 4 (OEM long-life) | — |
| DCT / PDK fluid | VW G 052 182 (wet DSG) | ~7–9 qt |
Longevity tips
- Warm the engine fully (oil at 180°F+) before any spirited driving — cold metal under load wears 10× faster.
- Run the OEM-spec octane — most modern engines tolerate 87 but premium-required engines are non-negotiable.
- After hard driving (track, mountain pass, autobahn pulls), idle 30–60 s before shutdown so turbos cool and oil temps stabilize.
- Store on a battery tender if driven less than once a week — modern ECUs draw heavy parasitic loads.
- Address small issues immediately (squeaks, warning lights, fluid spots) — they compound into $5k+ repairs.
- Keep a written service log — both for your own tracking and resale value (Carfax-style records add 5–10% at sale).
- Use OEM-spec parts and fluids — aftermarket 'equivalents' often aren't, and brand-engineered specs exist for real reasons.
- Replace tires as a complete set (or at minimum same axle) and never mix tire models on an AWD car — damages the center diff.
Brand-specific notes
- VW/Audi 'long-life' service (LongLife III oil) is fine for fleet use; private owners should switch to fixed-mileage 5,000–7,500 mi.
- Always cross-reference your VIN with the latest OEM TSBs and recalls — manufacturers fix common issues silently under warranty.
- Use the manufacturer app or a third-party scan tool (BimmerLink, OBDeleven, Techstream, Forscan) to monitor adaptations and clear codes between services.
Sources
- Manufacturer owner's manuals (recommended service intervals)
- Manufacturer Technical Service Bulletins (TSBs) and recall data
- Consumer Reports — Vehicle Reliability & Maintenance
- Edmunds True Cost to Own — Maintenance Schedules
- NHTSA — vehicle safety + recall data
- FuelEconomy.gov — official MPG and ownership data
- Forum repair databases (BimmerForums, Rennlist, MBWorld, MyTurboDiesel, GT-R Life, etc.)
Always cross-check with your owner's manual — manufacturer intervals and TSBs supersede generic guidance.
05 / Configurator
Build your own
Starting from
A4 40 Premium
$42K
Your build
Audi A4 / A5 (45 TFSI) A4 40 Premium
Base$42K
Total$42K