The Audi A4 model represents the core of the Audi brand - four years after the release of the Audi A4 B9 model, the company restyled the car to make the car even more sporty and modern. Its appearance is integrated into the brand's new design language.
Most engines now come with mild hybrid systems (MHEV) - efficiency and comfort benefit from this electrification. This also applies to the Audi S4 TDI (combined fuel consumption 6.3–6.2 l/100 km (37.3–37.9 US mpg)*; combined CO2 emissions 166–163 g/km (267.2 -262.3 g/mi) * with V6 For the first time, the TDI features a 48-volt electrical system and Electric Powered Compressor (EPC) under the hood, giving powerful acceleration even greater spontaneity, while its combination of power, torque and efficiency makes it unique in the world. in its segment.
Sporty look: exterior design of the 2021 Audi A4 B9
The model looks even more dynamic and sophisticated thanks to its sporty design. The Singleframe grille is now wider and flatter, with horizontal lines emphasizing the width at the front and rear. The side view is defined by the characteristic curves above the wings. They form clear contours above the wheels and make the quattro connection more visible from the outside.
The photo shows an Audi A4 Avant.
LED headlights are now standard on the 2021 Audi A4. The headlights feature Audi Matrix LED technology with fully automatic high beams. The concept of the equipment line is equally different: Basic, Advanced and the S line are now available for the exterior, not to mention the independent appearance of the S and A4 Allroad quattro models. Customers can choose from 12 paint colors, including a new terra gray option. The interior style of the 2021 Audi A4 B9 is also dominated by horizontal lines. In the center of the dashboard, slightly angled towards the driver, is the large Audi MMI touchscreen display, which is the control center for the new operating system. The new interior packages: “Design Selection” and “S line interior” can be freely combined with the exterior lines and consist of a variety of colors and materials. The contour/direct lighting package adds highlights to the interior in the dark.
Audi a4 b9 repair manual
Complex repairs of an Audi A4 B9 car are impossible in a garage; modern diagnostic equipment, a lift, and special tools are required. But any owner can handle minor problems.
During operation, you must be guided by the technical passport - Manual Audi A4 B9.
Where is the jack on the Audi B9
The tool is located in the trunk of the car. To get it out, you need to take out everything that is in the compartment and remove the plastic cover with the thumb. In addition to the jack, the car must contain:
- compressor for inflating tires;
- loop for towing a car;
- wrench for unscrewing wheel bolts.
Replacing the cabin filter
When using the Audi B9 in large cities, you need to change the filter once every 12,000 km. At least once every 8 months. What you will need for work:
- gloves;
- hex screwdriver;
- filter with article number – 4M0819439.
The element is located under the glove compartment of the Audi B9. But you won't have to take it off.
Step 1. You need to pull out the two clips and remove the foam casing.
Step 2. Remove the white cover by unscrewing the 2 bolts. The panel is also secured with latches, so you should be careful when dismantling it.
Step 3. Install the new filter and reassemble the parts in reverse order.
Sound improvement
What you will need:
- Processor: Audison Bit Ten.
- System amplifiers: ESX X-Four, Art Sound XE 1K.
- Acoustics: Focal Performance PS 165 F.
- Wiring: Tchernov Cable, RK-75.
All the “power” components of the new audio system can be easily placed in the left side of the trunk of an Audi A4 in the B9 body. At the top of the homemade box you need to install the Audison Bit Ten processor, and a little higher - a monoblock for the Art Sound XE 1K subwoofer and an amplifier for the front speakers - ESX X-Four.
The front doors of the Audi A4 (B9) need to be additionally insulated - preferably four layers. Extraneous sounds will no longer interfere. For “midbass” you can make stands from MDF, install mids from Focal Performance PS 165 F in the doors. Tweeters are mounted in standard places using adapter rings. Often many people change the subwoofer speaker, but for it you will have to make a separate housing under the rear shelf.
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Removing the radiator grille
Sequence of work:
- remove the radiator boot;
- unscrew the bolts from the inside and at the top of the bumper;
- Carefully remove the bumper and grille;
- dismantle the grille by pressing on the latches.
During tuning, non-original grilles in black or metallic are often installed.
Tire pressure
On Audi A4 v B9 you need to maintain the following values:
- 2.5 bar front and rear for 17-inch wheels;
- 2.7 bar for 18-inch wheels.
To improve handling, you can reduce the pressure by 0.3 bar. This will not affect fuel consumption, but the ride will become more comfortable.
Information equipment of Audi A4 B9 2021
The interface of the new MMI system is very similar to a smartphone. The MMI touch display with acoustic feedback replaces the functions of the previous rotary/push-button control on the center console. The high-resolution TFT display measures 10.1 inches. The menu structure with its rigid hierarchy is adapted to user expectations and makes it easier to use. Search in MMI is based on free text input and has a fast response. Natural language voice control, another feature of the new system, understands many phrases used in everyday speech.
Navigation in the restyled Audi A4 B9 has become even more versatile and convenient. Audi connect and Audi connect plus include many online services, such as Car-to-X, that use Audi intelligence. In addition to online road signs and hazard information, as well as parking services, information about traffic lights has appeared. Interacting with the city infrastructure, the car receives information from the central computer of the traffic light through the server so that the driver can select the speed to pass the next traffic light when the signal is green. The instrument cluster displays a personalized speed recommendation as well as the remaining time until the next green light. As such, the system promotes a proactive, efficient driving style. This function is part of the Audi connect package and is gradually being rolled out in selected European cities.
Audi connect and Service are included as standard, and the free myAudi app allows seamless smartphone connection, including locking/unlocking the car and starting the engine using an Android smartphone. Personalization, another digital feature, allows up to 14 myAudi users to save their preferred settings in separate profiles.
The new MMI has a completely different main unit. The third-generation modular infotainment platform MIB 3 delivers phenomenal computing power. It also works with a new separate communication unit, which integrates all connection tasks such as telephony or Audi connect services and includes a Wi-Fi hotspot. Additional hardware modules include the Audi phone box and the Bang & Olufsen 3D Premium Sound System.
Three instrument cluster variants are available: two partially analogue driver information systems and – in combination with MMI plus – the fully digital Audi virtual cockpit plus. The driver can control the 12.3-inch Full HD instrument cluster display using the multi-function steering wheel, which has three views to choose from, allowing the display to project important information into the driver's field of view.
Audi A4 B9 facelift models are available with a variety of driver assistance systems. Additional systems are combined into the “Tour”, “City” and “Park” packages. An important system in the Tour package is adaptive cruise control, which includes a Stop & Go function for automatic distance control. Combined with the performance prediction function, it can predict the A4's speed and acceleration even when there is no vehicle ahead. To do this, it analyzes Car-to-X messages, navigation data and road signs.
Audi A4 B9 review
general information
In Russia, sales of the Audi A4 B9 began in October 2015. We can immediately say that the designers and constructors of the German company still find it difficult to deviate from the classic appearance of their cars. And the new generation of Audi A4 once again confirms this statement. This hardly speaks of a design crisis, but rather of adherence to the classical canons. Of course, the differences in appearance between the new and previous generations are visible. But if you look carefully, it becomes clear that all the bends, bulges, and stiffening ribs practically repeat those of the A4 B8 model. But on the new generation A4 B9 they are sharper, more accentuated and aggressive.
In general, the Audi A4 B9 car began to look more expensive due to the addition of aggressive headlights, a large Singleframe radiator grille, and a front bumper with large air intakes. Otherwise, the new product is largely reminiscent of the A4 B8. Let's take a closer look at the car's exterior.
Exterior
The new Audi A4 B9 model has become one of the largest cars in its class in terms of its size. The new product practically catches up with the dimensions of the Audi A6 C5, and its wheelbase is even longer. Trunk volume has increased to 505 liters. For its predecessor it was 480 liters. But the total weight of the Audi A4 B9 has decreased. Depending on the modification and configuration, the weight reduction ranged from 30 to 120 kg. The net weight of the A4 B9 with the 1.4 liter engine is 1320 kg. In terms of dimensions, the new product is also ahead of its main competitors: the three-ruble BMW and the Mercedes C-Class.
Audi A4 B9 sedan
Station wagon Audi A4 B9 Avant
Station wagon Audi A4 B9 Quattro
In the basic version, the Audi A4 B9 received xenon headlights and several dozen security systems. The model has almost all the same safety options that are installed in the basic version of the Audi Q7 crossover. The model passed Euro NCAP safety tests in 2015. The results can be called successful, although the A4 B9 was inferior to such models as Toyota Avensis, Jaguar XE and some others.
Interior
The increase in size took place in the Audi A4 B9 interior itself. The space in the front and rear rows of seats has increased. The increase above the head was 2.4 centimeters, in front of the knees of the rear passengers ─ 2.3 centimeters. This is not much, but the fact itself is important.
Audi A4 B9 interior
The interior of the Audi A4 B9 in the basic version does not have any luxury elements, but is completely imbued with good quality. In the basic configuration, its main advantage is accessibility. And if there are additional tools, you can install everything that is available in older versions. However, the cost of the car will increase significantly.
So, in the basic version there is no leather interior, no wood trim, and the climate control is only single-zone. The list of additional options includes:
- Matrix LED headlights;
- Premium sound system from Bang & Olufsen;
- Adaptive cruise control, which can steer in traffic and stop the car if there is danger on the road;
- Electronic instrument panel, which allows you to customize the controls (that is, display the map on the entire display, shrink or expand instruments, etc.);
- And so on.
Interior of Audi A4 B9
The multimedia system supports Apple Car Play and Android Auto. You can display a map from your smartphone on the central display, and Audi navigation maps on the instrument panel, depending on your preferences.
Voice control, judging by the reviews, understands natural expressions quite well. But this is in English, but the system still doesn’t understand Russian very well.
Back row
Trunk in a sedan
Trunk in the station wagon
Displays for rear seat passengers are available as an option. These displays are tablets manufactured by the Taiwanese company Pegatron. Moreover, they are removable. The tablets run the Android operating system and have an internal space of 32 gigabytes. They interact wirelessly with the MMI multimedia system. You can also order a wireless charger for smartphones, which is installed in the front row armrest.
Rear passenger displays
The sound insulation of the Audi A4 B9, like other models of the German company, is simply amazing. The noise in the cabin is the same at speeds of 50, 100 or 150 km per hour. This provides a sound insulating layer on the car body. To further improve the sound insulation of the Audi A4 B9, double glazing can be ordered at an additional cost.
Additionally, you can read an article about the future flagship Audi A9 on our website.
What's under the hood?
On the Russian market, the Audi A4 B9 is offered with 3 gasoline and 2 diesel engines. All power plants are in-line 4-cylinder engines with a turbine. The TDI 2.0 and TFSI 1.4 models have a power of 150 horsepower. Another TDI 2.0 and TFSI 2.0 have an output of 190 “horses”. Top versions are offered with a two-liter gasoline engine producing 249 horsepower.
The engines of the Audi A4 B9 model can be paired with a manual transmission or a 7-speed S-tronic robot. A manual transmission is only offered in the base version, with all other variants coming with S-tronic. The European market also offers a TDI 3.0 engine with 272 horsepower, which is paired with an 8-speed automatic transmission. The manufacturer claims that all power units of the Audi A4 B9 have become 21 percent more economical. This was achieved by improving the engines themselves, as well as by reducing the car's weight and improved aerodynamics. As stated, the body of the Audi A4 B9 has an aerodynamic drag coefficient of 0.23. To be more precise, this coefficient is valid for the TDI 2.0 ultra modification (190 hp), which is equipped with aerodynamic protection for the underbody of the car. It consists of plastic panels. For other modifications of the Audi A4 B9, the body aerodynamic drag coefficient is 0.26.
Aerodynamic underbody protection
The design of the front suspension of the Audi A4 B9 still includes double wishbones. Only now the levers are attached not to the subframes, as before, but to the body. The rear suspension is 5-link with 4 upper control arms.
The Audi A4 B9 can be equipped with two chassis options. This is a standard and adaptive chassis. Each of these options has its own “comfort” and “sport” settings. The differences are in ground clearance and stiffness. As car owners note, there is no fundamental difference between them. At least in urban environments. The most suitable for Russian roads is the adaptive suspension in the “Comfort” mode. It performs well on rough roads and smoothes out minor driving mistakes.
The basic version of the Audi A4 B9 has a 1.4 liter TFSI engine (150 horsepower) under the hood, which is coupled with a 6-speed manual transmission. The car has good dynamics and performs well both on the highway and in dense city traffic. Acceleration to 100 kilometers per hour takes the car in 8.7 seconds.
The S tronic transmission performs well when paired with a TFSI 2.0 engine with 190 horsepower. Gear changes occur quickly and clearly. The Audi A4 B9 modification with the top-end TFSI 2.0 engine (249 hp) accelerates to 100 kilometers per hour in less than 6 seconds.
Electrification: drive system of the 2021 Audi A4 B9
Audi will offer the A4 range with six turbocharged engines at launch in Europe. Their power output varies from 110 kW (150 hp) to 255 kW (347 hp) - from the Audi A4 35 TFSI (combined fuel consumption 6.0 - 5.5 l/100 km (39.2- 42.8 mpg US); combined CO2 emissions 138 - 125 g/km (222.1 - 201.2 g/mi) - up to Audi S4 TDI (total fuel consumption 6.3 - 6.2 l/100 km (37.3 - 37.9 US mpg), combined CO2 emissions 166 - 163 g/km (267.2 - 262.3 g/mi) All engines, whether four-cylinder diesel unit, V6 TDI or four-cylinder TFSI - exceed the Euro 6d-temp emission standard.
The photo shows an Audi S4 Limousine TDI.
To be launched in the market, the three engine variants will use a 12-volt mild hybrid system (MHEV), which reduces fuel consumption while increasing comfort. This large-scale electrification makes an important contribution to achieving the company's fuel consumption goals. In everyday use, the MHEV system reduces fuel consumption by 0.3 liters per 100 kilometers, according to the company's measurements.
Whether manual transmission, seven-speed S tronic or eight-speed tiptronic, front-wheel drive or quattro drive, each of the six engine variants provides an individual drivetrain. All A4 models come standard with an automatic transmission.
Characteristics of Audi A4 B9 engines
Customers in Russia have a choice of models with gasoline power plants:
- 35 TFSI S Tronic – 150 hp;
- 40 TFSI S Tronic – 190 hp;
- 45 TFSI S Tronic – 249 hp;
- 45 TFSI quattro S Tronic – 249 hp
And also with diesel engines:
- 35 TDI S Tronic – 110 hp;
- 40 TDI S Tronic – 190 hp;
- 45 TDI quattro S Tronic – 190 hp
All engines are equipped with turbines, and average fuel consumption ranges from 6 to 10 liters per 100 km - depending on the mode, with a power of 150 hp. up to 255 hp
The characteristics of the Audi A4 B9 engines vary:
- fuel consumption – 6-5.5 liters per 100 km;
- exhaust output (CO2) – 138 – 125 g/km;
- compliance with standards – Euro 6d-temp – all modifications.
Sporty harmony: suspension of the Audi A4 2021
The sportily balanced suspension is in perfect harmony with the character of the restyled version of the Audi A4. Customers can choose between standard and sport suspension. There are also two adaptive suspensions. One option is the damper-controlled comfort suspension, which reduces ride height by 10 millimeters (0.4 inches) and provides superior comfort. The other is the sports suspension, with or without damper control, which is lowered by 23 millimeters (0.9 inches). Both controlled suspensions are integrated into the Audi drive select dynamic control system. The same goes for the steering, with Dynamic Steering, an automatic transmission and throttle control available as an option for customers. Audi drive select allows the driver to determine which of five profiles these systems use.
Chassis of the new A4 B9
The suspension matches the sporty character of the updated Audi A4 platform. Although some may find it harsh. One of the best options for most drivers is the Audi A4 B9's dynamic damper-controlled suspension, which reduces the ride height by almost 10 mm. The other is the sports suspension, which is 23 mm lower than the usual one. With an automatic transmission and throttle body available as an option, the car handles well on city roads as well as on the highway.
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Diesel power: Audi S4 TDI
Both S models of the A4 family - Audi S4 Sedan TDI (combined fuel consumption 6.3 - 6.2 l/100 km (37.3 - 37.9 US mpg), combined CO2 emissions 164 - 163 g/km (263 .9 - 262.3 g/mi) and S4 Avant TDI (total fuel consumption 6.3 l/100 km (37.3 US gal/gal), combined CO2 emissions 166 - 165 g/km (267.2 - 265 .5 g/mi) - now equipped with a V6 diesel engine.The 3.0 TDI power unit combines high torque, smooth running and long range, and provides a power output of up to 255 kW (347 hp) and maximum torque 700 Nm (516.3 lb-ft) It accelerates the S4 Sedan TDI from 0 to 100 km/h (62.1 mph) in 4.8 seconds en route to a top speed of 250 km/h (155.3 mph) / h) This combination of power, torque and efficiency makes the Audi S4 TDI unique in its segment.
In the photo - Audi S4 Avant TDI, color - Daytona gray.
The electrically driven compressor provides high performance and virtually smooth power build-up during acceleration. As such, it eliminates any turbo lag, providing instant response in all driving situations. The electrically driven compressor is integrated into the new 48-volt main electrical system, which includes a mild hybrid system. This offers even greater efficiency potential than the MHEV system in the 12-volt electrical system on Audi A4 models. In the S4 TDI, this is the next stage of expansion, in which mild hybrid technology will be deployed on a 48-volt basis. The 12-volt auxiliary electrical system is connected to the 48-volt main electrical system via a high-power DC-DC converter. For the first time, the S4 TDI uses a powerful 48-volt starting alternator as the core of the mild hybrid system, with a maximum regenerative power of up to 8 kW during braking.
The energy management center is a compact 0.5 kWh air-cooled lithium-ion battery located under the luggage compartment floor. The mild hybrid system on S models can reduce consumers' fuel consumption by up to 0.4 liters per 100 kilometers.
Eight-speed tiptronic and permanent quattro all-wheel drive make up the powertrain. An optional sports differential is available for active power distribution between the rear wheels. This way, more power can be directed specifically to the wheel on the outside of the camber when cornering at speed, preventing the tendency to understeer early on. S sports suspension is standard. The S-specific tuning provides a sporty driving feel. This can be improved even further with the optional S sport suspension with damper control. Inside and out, design details highlight the uniqueness of the S models - from the exhaust tailpipes to the S mode in the Audi Virtual Cockpit display.
Unrivaled off-road experience: Audi A4 Allroad quattro 2019
With quattro all-wheel drive and a ground clearance increased by 35 millimeters (1.4 inches), the Audi A4 allroad quattro combines excellent driving comfort and good off-road capabilities. With the optional universal suspension with damper, comfort and agility can be further enhanced. It differs from the A4 Avant in details such as underbody protection or wheel arch trims, as well as larger 12 millimeters (0.5 in) wheels and a wider track - six millimeters (0.2 in) wider at the front and eleven millimeters (0.4 inches) at the rear.
The photo shows an Audi A4 allroad quattro, Terra gray.
An automatic transmission is standard on the Audi A4 allroad quattro, and damper-controlled suspension provides an alternative to the standard suspension. As on the Audi A4 Avant, boot capacity is 495 liters (17.5 cu ft) - increasing to 1,495 liters with the rear seats folded and cargo loaded on the roof. The rear hatch and luggage compartment lid are electrically operated as standard. Thanks to an additional off-road mode on the dynamic Audi drive select system, the driver can select one of six profiles in the A4 Allroad quattro.
Audi A4 B9 - interior design
Inside the car, where Audi does not adhere to cliches, thanks to an incredibly meticulous attitude to interior design, quality of materials and layout, the entire interior of the Audi A4 looks like a single whole and is pleasing to the eye.
Photo of Audi A4 - interior
Even the basic equipment of the Audi A4 looks better than the “premium-average” equipment from its competitors. Standard features include a Virtual Cockpit with access to multimedia functions and an intuitive interface.
Virtual panel Audi A4 B9
More common options include interior space and practicality, comfortable seats, efficient ventilation, and overall ergonomics. The 2017 Audi A4 continues to make its way into the top car segment, although the T-bar controls are unnecessarily complicated. Also, extraneous sounds have been noticed in some cars due to the climate control features.
Audi A4 B9 front panel design
For more immediate buyers: the Audi A4 model
In conjunction with its launch, the four-ring brand is introducing a model dubbed the “Edition One.” It is available as a sedan or Avant with a choice of three engine versions - 2.0 TFSI with a power output of 180 kW (245 hp) (combined fuel consumption 6.9 - 6.5 l / 100 km (34.1 - 36 .2 mpg US), combined CO2 emissions 157 - 146 g/km (252.7 - 235.0 g/mi), 2.0 TDI with 140 kW (190 hp) power output (total fuel consumption 5.3–4.9 L/100 km (44.4–48.0 US mpg), combined CO2 emissions 140–131 g/km (225.3–210.8 g/mi) and 3.0 TDI with 170 kW (231 hp) (total fuel consumption 5.6–5.3 l/100 km (42.0–44.4 US mpg), combined CO2 emissions 145–139 g/km ( 233.4–223.7 g/mi) Exterior design is based on the S-Line, complemented by striking elements such as the black styling package.
Price of Audi A4 restyling and market entry in Europe
The Audi A4 and S4 models with TDI engine and new sporty design will be available in Europe from May 2021. The Audi A4 Allroad quattro will go on sale in early summer, with both models arriving in dealerships in autumn 2021. In Germany, the base price for the A4 Sedan 35 TFSI at 110 kW (150 hp) and S tronic is €35,900. Customers can order the S4 Sedan TDI from €62,600. It comes standard with the popular options of the Audi A4 Sedan, costing approximately €6,400 compared to the A4 Sedan 45 TDI quattro tiptronic at 170 kW (231 hp). These include LED headlights with dynamic rear indicators, S sport suspension with firm suspension and damping tuning, 18-inch wheels, an adjustable front axle, sport seats with Alcantara leather and embossed S logo, and sport-profile bumpers. Customers can also order the Audi A4 Edition One, a special edition, starting from €53,300.
Audi offers the S4 and S4 Avant with 3.0 TFSI in markets outside Europe. The turbocharged direct injection petrol engine produces 260 kW (354 hp) and produces a powerful 500 Nm (368.8 lb-ft) of torque from 1,370 to 4,500 rpm. The V6 accelerates the TFSI S4 sedan from zero to 100 km/h (62.1 mph) in 4.7 seconds en route to an electronically controlled top speed of 250 km/h (155.3 mph). The standard sprint lasts two tenths of a second longer in the S4 Avant TFSI.
