Audi A4 Owner's Manual — Free PDF Download

This page provides access to the complete Audi A4 owner's manual in PDF format for every major generation. Whether you drive a turbocharged petrol, a TDI diesel, or a quattro all-wheel-drive variant, the correct manual for your model year explains every system, warning light, and maintenance interval specific to your vehicle — not a generic approximation written for a different trim or market.

Why Choosing the Correct Generation Matters

The Audi A4 has been produced across four distinct platform generations — B6, B7, B8, and B9 — each sharing the same nameplate but differing significantly in architecture, electronics, and available features. A manual written for a 2006 B7 A4 references a different climate control layout, a different MMI system, and different service intervals than one written for a 2019 B9 A4.

Using the wrong manual is one of the most common reasons owners misinterpret warning lights or incorrectly reset service reminders. Selecting by model year — rather than model name alone — ensures you are reading specifications, fuse diagrams, and torque figures that were written for the exact vehicle sitting in your driveway.

Audi A4 Generations at a Glance

Use the table below to identify your generation before downloading. The platform code is also stamped on your vehicle identification plate.

What the Audi A4 Owner's Manual Covers in Detail

Audi's official owner documentation is structured around the way drivers actually use their vehicles — from first starting the engine each morning to long-distance motorway driving and scheduled dealer servicing. Below is what each major section of the manual addresses.

Understanding Dashboard Warning Lights

One of the most frequently consulted sections of any owner's manual is the warning light guide. The Audi A4 displays three categories of alert. Red symbols indicate an immediate stop-and-act situation — continuing to drive risks serious mechanical damage. Yellow symbols signal a fault that requires attention before or at the next service visit. Green and blue symbols confirm that an active system — such as high beam, cruise control, or lane assist — is running normally.

Because the B8 and B9 generations introduced additional assistance systems and stricter emissions monitoring, the number of possible indicator combinations increased significantly compared to earlier A4 models. The correct generation manual lists every symbol with a plain-language description of what triggered it and whether the vehicle is safe to continue driving to a workshop.

Audi MMI and Virtual Cockpit — System by System

The infotainment system fitted to your A4 depends on when it was built and which trim level it left the factory on. B8 models use the MMI 3G or MMI 3G+ system, operated through a central rotary controller with four fixed shortcut buttons surrounding it. The MMI 3G+ added higher-resolution maps, faster route calculation, and an optional rear-view camera feed.

B9 models introduced the 8.3-inch MMI Touch display on entry trims, with the optional 10.1-inch MMI Touch Response system on higher specifications. This moved navigation and climate control onto a single glass touchscreen surface with haptic feedback, replacing the physical rotary controller entirely.

The Virtual Cockpit — Audi's fully digital 12.3-inch instrument cluster — became standard or available across the B9 range from 2019. The owner's manual explains how to switch between Classic and Sport display views, how to show full navigation maps within the instrument cluster, and how to control media functions directly from the steering wheel without touching the centre screen.

Quattro All-Wheel Drive — How the Manual Explains It

Not all Audi A4 all-wheel-drive systems work in the same way, and the owner's manual is the most accurate source for understanding which type of quattro your specific car uses. The B6 and B7 generations used a Torsen centre differential, which distributes torque mechanically between the front and rear axles without requiring electronic intervention. Power is split 50:50 under normal conditions and can shift up to 75 percent to either axle when slip is detected.

The B8 and B9 generations introduced the quattro ultra system on many non-RS models. This system uses electronically controlled clutches to disconnect the rear axle entirely under light loads, effectively turning the car into a front-wheel-drive vehicle to reduce fuel consumption. The rear axle reconnects within milliseconds when sensors detect a need for traction. Some B9 petrol models use a mechanical Torsen quattro, while others use quattro ultra — the manual identifies which is fitted to your engine and gearbox combination.

Understanding which system you have affects how you interpret handling behaviour, how you approach low-traction surfaces in winter, and whether the vehicle requires any special considerations when placed on a vehicle transporter or flat-towed.

Service Intervals and Fluid Specifications

The Audi A4 uses a flexible service interval system called Audi Service Interval Display (SID), which calculates the time until the next oil change based on actual driving conditions — engine load, oil temperature cycles, and trip length — rather than a fixed kilometre target. Under typical mixed driving, this interval falls between 15,000 and 30,000 kilometres. Under severe short-trip, cold-start conditions, the system may recommend a service sooner.

Engine oil specification varies by engine family and must meet the relevant Volkswagen Group approval number, not just the viscosity grade. Using an oil that carries the correct viscosity but not the VW approval standard can cause increased wear on variable valve timing components and may affect warranty claims on newer models. The fluids section of your manual lists the exact approval code required for your engine.

Tyre Pressures, Load Ratings, and Wheel Data

Correct tyre pressure directly affects fuel consumption, braking distance, and tyre lifespan. The Audi A4's recommended pressures are not a single figure — they vary by wheel diameter, tyre profile, load condition, and whether the vehicle is fitted with run-flat tyres. The pressure label inside the driver's door jamb gives baseline figures, but the owner's manual explains how to adjust these for full passenger loads, trailer towing, or sustained high-speed motorway driving above 160 km/h.

B9 A4 models fitted with the tyre pressure monitoring system (TPMS) display individual tyre pressures in the MMI menu. The manual explains how to calibrate this system after fitting new tyres, rotating existing ones, or changing wheel sizes — a step many owners miss, which causes the system to generate persistent false low-pressure warnings even after pressures have been correctly set.

Frequently Missed Sections in the A4 Manual

Several sections of the owner's manual are rarely read but frequently needed. The convenience opening feature — which lets you hold the unlock button on the remote key to lower all windows and the sunroof simultaneously — is documented only in the remote key section, not under windows or climate control where most owners look for it first.

The ability to store two separate driver profiles on B8 and B9 models — each saving its own seat position, mirror angles, air conditioning preferences, and MMI settings — is covered in the driver profile section rather than the seat adjustment chapter. Many owners discover this feature only by accident years into ownership.

The towing section contains legally important figures that vary considerably between engine variants. Maximum permitted nose weight and total braked trailer weight for a 1.4 TFSI differ substantially from those for a 3.0 TDI quattro. In many countries, exceeding these limits affects insurance validity regardless of whether the car physically manages the weight.

How to Identify Your Exact Audi A4 Variant

The Vehicle Identification Number (VIN) is a 17-character code located at the base of the windscreen on the driver's side and on the compliance plate in the engine bay. It identifies the model year, production plant, body style, engine variant, and equipment specification. The owner's manual explains how to decode the relevant characters and cross-reference them with the correct supplement or country-specific addendum for your market.

The engine code — a three or four letter identifier stamped on the engine block — is equally important. Several Audi A4 engines share the same displacement and badge (for example, multiple engines have been sold as "2.0 TDI 150 PS") but use different internal architecture, different injector types, and different oil pump designs. Knowing your engine code ensures you order the correct filters, belts, tensioners, and fluid quantities when servicing the car yourself or briefing an independent workshop.

Your engine code is also printed on your vehicle registration document and on the service booklet issued at delivery. If neither is available, it can be read from the car's OBD port using any standard diagnostic tool that supports the Audi/VW protocol group.