Audi A4 B7 2004 - 2008 - USED, FAULTS, EXPERIENCES

Audi A4 B7

The third-generation Audi A4 is Audi’s attempt to be more than ever an alternative to class-leading bmw -in 3 and Mercedes - C class. Although the Audi A4 B7 looks very similar to the previous models, there are many changes, but there is a new, more aggressive design. There are also some new engine options, new gearboxes and the suspension has been redesigned. He can't do better than his rivals, but he remains a worthy contender.

The main improvements to the Audi A4 B7 are its driving characteristics. Instead of being the Achilles heel of the Audi A4, the ride quality is now very good. And holding the Audi A4 B7 is good and rocking, which has sometimes happened in previous generations of cars. The Audi A4 B7 is much more balanced, making it better for driving on all types of road in all conditions.

The third generation of the Audi A4 B7 (Typ 8E / 8H) was produced from 2004 to 2008. Although driven as a whole new generation, it was in fact a thoroughly revamped second generation of the Audi A4 B6. This time, too, there is a striking resemblance to the larger brother of the third generation A6 model. The front and rear lights and the entire line of the car have been changed, and a new grille is noticeable. Of the body versions available are a sedan, Avant (station wagon) and convertible.

The engines were upgraded again and a new 2,0 Turbo FSI engine was introduced as well as a 3,2 V6 FSI which replaced the 3,0 V6 engine. The new 2,0 TDI engine represents a step between the old 1,9 TDI and a new 3,0 TDI engine that replaced the old one 2,5 TDI.

The Audi A4 continues to differ from the Bmw 3 and Mercedes C-Class with front-wheel drive or the option of Quattro all-wheel drive on more powerful versions. The handling of the Audi A4 B7 is safe and predictable, while the models equipped with Quattro drive are extremely safe.

The S4 variant was available with the Audi A4 B7 and performed as in the previous 253 KW / 344 hp in all three body styles. The most powerful version of the S4 has a 6-liter V3 turbo engine with 333 horsepower.

Audi introduced the RS4 model, with the difference that traditionally the only chassis design for the RS models was the station wagon, and now it is a sedan and uses a 4,2 V8 FSI engine that develops 420 hp / 309 KW. In 2005, a special series was presented dedicated to the championship title that Audi won in the DTM Championship and using a 2,0 TFSI engine boosted to 220 HP / 162 KW, a top speed of 247 km / h. The platform is lowered by 20 mm and the suspension is stiffer. Since 2006, the same engine has been delivered to customers with a standard Quattro drive.

In February 2008, the model replaced the Audi A4 B8.

COMFORT - Audi A4 B7

Audi A4 B7

The Audi A4 B7 has introduced a new face to the world with a big new grille, aggressive headlights, a new two-piece taillights and two exhausts. The interior design, however, was identical to the B6 model except for the modified steering wheel, seat and speedometer.

There is little Volkswagen in the cabin, little Audi, but looks good, aluminum and chrome instrument trims and quality materials have a positive effect on the car feel. The arrangement of the instruments is logical and, in short, everything is where it is expected, the design is not particularly inspirational, but the level of finish and quality of the materials used is at the highest level. Each "click" of the switch is clear and gives the impression of durability and reliability. This even applies to the key most exposed to wear.

The seats are quite hard and although it doesn't sound nice, it is actually a positive feature, as research has shown that soft seats are uncomfortable on longer journeys as they allow passengers unfavorable seating positions. The ideal seating position is easy to find, which is a confirmation of excellent ergonomics. Rear passengers have plenty of room for both knees and heads, but not too much.

The Audi A4 B7's design is reminiscent of larger game models. What is the new model is certainly the design and sporty note especially expressed in the S and Avant models. The size of the new A4 is 4586 mx 1766 mx 1428 m, and the wheelbase is 2468 m. The luggage compartment volume is from 442 to 1188 lu depending on whether it is a sedan or a wagon with rear seats down.

For good driving performance and comfort, the Audi A4 B7 owes it to the advanced chassis structure. The Audi A4 B7 is increasingly surprised by its driving performance and precision handling. In terms of front-wheel drive, the Audi A4 B7 is almost perfect in terms of the behavior of its rear-wheel drive competitors.

The Audi A4 is a somewhat sporty sedan with a light and precise steering wheel, short and steady transmission, an elegant silhouette without an identity crisis. The Audi A4 actually represents a successful attempt to reconcile the extremes represented by the other two German manufacturers and as such represents an authentic product.

To maximize the power of now even more powerful engines, Audi technicians have been tasked with dramatically improving the agility and precision of the Audi A4 B7 while maximizing driving performance. As a result, the chassis of the new A4 is extensively revised and uses components from the Audi A6 and upgrading the components from the S4 quattro.

In addition to standard front airbags for the driver and front passenger, Audi also supplies side airbags as well as air curtains. Among other security systems, the test model was equipped with: ABS, EBV, ESP, EDS and ASR.

The body is well protected against rust.

ENGINE - Audi A4 B7

Audi A4 B7

The Audi A4 B7 is basically equipped with a front-drive with a longitudinally mounted engine, but with different engines, Quattro powertrain can also be ordered, sports models S and RS are equipped with Quattro powertrain. Gasoline engines range from 75 KW to 309 KW, diesel power from 85 KW to 171 KW. The most powerful model of the Audi A4 B7 was introduced in the fall of 2005 as an RS4 with 309 kW of power.
The oversized engine range of the Audi A4 makes the choice not easy, with a power range of 100 hp to 420 hp.

The Audi A6 B7 has also been improved under the skin over the previous model, with the addition of the latest advanced Audi FSI direct injection petrol and TDI engines. Added gasoline 2.0 FSI unit with 200 hp and 3.2 liter V6 FSI with 255 hp from Audi A6. The TDI range has been expanded with 2.0 TDI with 140 hp and a 3,0 TDI V6 used by the Audi A6 and A8.

Over three years of life there were no less than 14 different engines available in the Audi A4 B7. The 1.6 petrol with 75 KW / 148 Nm is the smallest, but the turbo 1.8T and 2.0T units or the efficient 2.0 TDI are better. There is a 200 hp 2.0 TFSI engine, which it shares with the Golf GTI. The petrol V6 is a 3.2-liter TSI engine with 255 hp, although there is a 4.2 V8 in the S4. The offer of diesel engines is equally impressive - it is the most economical 1.9 TDI with 115 hp, but if you want a little better performance there is 2.0 TDI with 140 hp, which provides enough power (later a variant with 170 hp was introduced). The 2.5 V6 TDI diesel was replaced in 2006 by a more sophisticated 2.7 TDI unit with 180 hp and a 3.0 V6 TDI with 204 hp and 450 Nm. There is a choice of five- and six-speed manual transmissions, plus a six-speed automatic and a seven-speed CVT. The RS4 runs a 4.2-liter V8 with 420 hp.

TDI engines are expensive, and when they are not expensive, they have traveled many miles. That's why the advice for the average driver, who doesn't exceed many miles, is a two-liter gasoline engine. This can be found relatively cheap, is not a barrier to traffic and is considered to be modest and simple.

Audi A4 1.6 
The 1.6 (1595 cc) 8-valve, four-cylinder 1,6-cylinder petrol engine is known from other Volkswagen Group models, such as the Skoda Octavia, Seat Leon or VW Golf. Provides a maximum power of 102 hp / 75 kW at 5600 rpm. and 148 Nm at 3800 rpm. Acceleration to 100 km / h in 12,6 s and top speed 190 km / h. Due to the sporty image of the car, the dynamics of the vehicle's engine are quite weak for normal driving, due to its being too weak for this car. In terms of reliability, it is a very successful engine. The weakness of the engine is the transmission.

Audi A4 1.8T 
To date, the four-cylinder 1.8 T with 20 valves and turbine, with 120 KW / 163 hp at 5700 rpm, 225 Nm at 1950 - 4770 rpm, is very popular. Acceleration to 100 km / h in 8,6 s and top speed is 228 km / h. The engine provides robust dynamic characteristics and an energetic ride. The engine is reliable, but requires good and regular servicing. If the oil change is neglected and the engine oil change interval is extended, the oil pump suction can become clogged, leading to lower oil pressure in the lubrication system and poorer lubrication.

Audi A4 2,0i (96KW) 
If interested in a gasoline engine, choose the reliable and solid dynamics of the 2.0 4 cylinder, 20 valves, with 130 hp / 96 kW at 5700 rpm. Acceleration from 0 to 100 km / h accelerates in less than 10 seconds. Top speed 205 km / h. 2.0 engine with five valves per in, has a good working culture and good torque characteristics. The 4-liter Audi A2.0 has a fuel economy of about 9,0 liters. The engine is reliable and has affordable servicing costs. The 2,0 liter engine is not a racing engine, but it delivers reasonable performance with reasonable consumption. Its trump card is reliability. He who wants better performance should be interested in TFSI family turbo engines.

Audi A4 2.0 FSI 
2.0 FSI engine, 1984 cc, direct injection, without 4-cylinder turbine, 16 valves, with 170 hp / 125 kW at 4300 - 6000 rpm. and 280 Nm at 1800 - 4200 rpm.

Audi TFSI A4 2.0 
The 2.0 TFSI with four cylinders, 16 valves, turbo unit delivers 200 hp / 147 kW at 5100 rpm to 6,000 rpm and a maximum torque of 280 Nm rpm from 1800 rpm to 5000 rpm. The impression of an exceptional balance between performance and efficiency thanks to a sophisticated high-pressure common rail injection system that injects fuel directly into the cylinders rather than via the intake valve. The injectors inject fuel with precision measured in milliseconds with an operating pressure between 30 bar and 110 bar. The Audi A4 2.0 TFSI with six-speed manual transmission is capable of accelerating to 100 km / h in 7.3 seconds and, where permitted, can reach a top speed of 239 km / h. The more powerful 2.0 TFSI has 220 hp / 162 kW at 5900 - 6100 rpm. and 300 Nm at 2200 - 4000 rpm. It accelerates to 100 km / h in 6,9 and has a top speed of 244 km / h.

Audi A4 3.2 FSI (255 bhp)
The six-cylinder 3.2 FSI, 3123 cc, 6 cylinders, 24 valves, uses a chain as the drive has direct fuel injection. Power output of 255 hp / 188 kW at 6500 rpm. and 330 Nm at 3250 rpm. It accelerates to 100 km / h in 6,4 seconds and has a top speed of 250 km / h. The Audi A4 3.2 FSI offers very good dynamic performance.
The V6 direct-fuel gasoline engine is 188 KW / 255 hp and has replaced two older-series six-cylinder gasoline engines.

Audi A4 4.2L V8
The 4,2 cc 4163 engine has 8 cylinders in V layout, 40 valves, 344 bhp / 253 kW at 7000 rpm. and 410 Nm at 3500 rpm. It accelerates to 100 km / h in 5,6 and has a top speed of 250 km / h. Or more advanced version direct injection 4.2 has 8 cylinders in V layout, 32 valves, 420 bhp / 309 kW at 7000 rpm. and 430 Nm at 5500 rpm. It accelerates to 100 km / h in 4,8 s and has a top speed of 250 km / h.
The engines are mounted only on the sports versions S4 and RS4. Excessive wear of engine oil caused by sharp driving occurs in these engines. So excessive engine oil consumption is manifested by increased oil consumption due to excessive clearance between piston and cylinder.

The diesel engines of the Audi A4 had a soot particle filter as an accessory in 2005, and since the beginning of 2006, a soot particle filter has been standard.

There are plenty of Audi A4 B7 diesels on the market, but they are popular and tend to sell quickly. The 1.9-liter is a better choice than the 2.0-liter diesel - it may be an older engine, but it returns through good fuel economy and cheaper maintenance.

Audi TDI A4 1.9 
The basic diesel is the legendary 1.9 TDI PD - injection (pump - nozzle), volume 1896 ccm, 4 cylinders, 8 valves, power of 85 KW / 115 hp at 4000 rpm, and torque of 280 Nm at 1900 rpm . It should be mentioned acceptable service costs, reliability and especially low fuel consumption average of about 6 liters.
The 1.9 TDI has solid reliability and, if well maintained, can withstand high mileage. The risk of increased failures is mainly due to the overly optimistic oil change interval sometimes up to 30 km, which is recommended to be reduced to a maximum of 000 km. Otherwise, there may be problems with the turbocharger, wear on the mechanical parts of the engine and gasket.

Audi TDI A4 2.0 
Two new 2.0 TDI diesel engines in the Audi A4 with 103 kW / 140 hp and 125 kW / 170 hp have replaced the most powerful four-cylinder diesel of the old series.
2.0 TDI 1968 cc, 4 cylinders, DOHC, 103 KW / 140 hp at 4000 rpm, torque 320 Nm between 1750 rpm - 2500 rpm, 0 - 100 Km / h = 9,7 sec, top speed 212 km / h.
2.0 TDI with four valves per cylinder with variable geometry turbine and pump-nozzle technology produces 140 bhp, the engine is loud but very flexible and dynamic, but at first it feels turbo hole, floating flywheel and turbines are its weak points. Consumption is about 7 liters of diesel.
The Sprint Audi A4 B7 2.0 TDI from 0 to 100 km / h takes 9,7 seconds. This is due to the short gear ratios of the six-speed manual transmission, due to which the electronics have their hands full to restrain the drive wheels when the accelerator pedal is fully depressed. Because of that, one gets the impression that the car simply "wants" to be given gas. A large amount of torque "takes care" that the A4 pulls well at higher speeds, and the maximum speed is 212 kilometers per hour.
The engine is also characterized by low fuel consumption and slightly higher noise levels than the common-rail units, but in the VW concern this is justified by pump-nozzle injection.
2.0 TDI 1968 ccm, 4 cylinders, DOHC, 125 KW / 170 hp at 4200 rpm, 350 Nm of torque between 1750 rpm. - 2500 rpm, 0 - 100 km / h = 8,5 sec, top speed 224 km / h.

Audi TDI A4 2.5 
It is a risky choice of one of the V6 diesels. Basic 2.5 V6 old friend who is not impressed with durability, nor parameters. 2.5 TDI with a volume of 2496 ccm, V6, 120 KW / 163 hp at 4000 rpm, torque 310 Nm between 1500 rpm. and 3000 rpm, 0 - 100 Km / h = 8,8 sec, top speed 227 km / h. The 2.5-liter diesel engine was later replaced by a version 2.7 TDI with 132 KW / 180 hp.

Audi A4 2.7 TDI 
2.7 TDI volume 2698 ccm, V6, DOHC, 132 KW / 180 hp between 3300 rpm. and 4250 rpm, 0 - 100 Km / h = 8,4 sec, top speed 230 km / h.

Audi TDI A4 3.0 
The 3-liter diesel engine initially developed 150 KW / 204 hp between 3500 rpm and 4500 rpm, 450 Nm between 1400 rpm. and 3150 rpm, later the engine power is 171 KW / 233 hp between 3500 rpm. and 4000 rpm. The V6 diesel engine with common rail injection with Piezo nozzles runs quieter than its 2.5 TDI with pump-nozzle injection system, which was offered for a while in the Audi A4 B7.
The 3.0 TDI V6, with a displacement of 2967 cc and 150 kW / 204 hp, accelerates from 0 to 100 Km / h in 7,2 seconds, with a top speed of 235 km / h.

Brand new 2.7 TDI and the 3.0 TDI go with the drive chain. They are indeed very dynamic and surprisingly economical, but they were perfect in the days of their youth. Today, most of them have more than 300000 km to go and are struggling with drive chain problems, which are expensive to replace. High mileage leads to excessive exploitation of the injector leading to poor injection, injection into the cylinder, fuel and poor injection damaging the pistons of the engine.

The choice of a transmission of five or six-speed manual gearbox, which is characterized by precision and short stroke of change. It's six-speed automatic. Tiptronic with a torque converter or Multitronic (CVT) seven-speed variable-speed transmission. The drive of the Audi A4 B7 is either front-wheel or all-wheel-drive Quattro, depending on the model.

The suspension has also undergone a redesign and is now optimized for agile and sporty steering, the braking system has also been upgraded to sport a note, all of which is aided by the latest-generation ESP. New to Audi are the lights that now follow the car's trajectory.

Top models TFSI, 3,2 V6 and 3,0 TDI are equipped as standard with the new Servotronic servo unit, which adjusts the power of the servo boost, so you have a very light steering wheel while parking, while driving directly on the motorway, making modern solutions thrive to reconcile two opposites.

Model History - Audi A4 B7:
2004 Audi A4 B7 appeared. Engines 1.8 T (120 KW), 2.0 TDI (147 KW), 3.2 FSI V6 (188 KW), 1.9 TDI (85 KW), 2.0 TSI (103 KW) and 3.0 TDI (150 KW).
2005. Version RS4 - 4.2 V8 FSI (309 KW). 2.7 TDI (132 KW) and 3.0 TDI (170 KW).
2006. 2,0 TDI (125 KW) and 2.0 TDI (162 KW). Start of production of Audi A4 convertible.
2008 Audi A4 B7 production finishes.

FAULTS - Audi A4 B7

If you don't want problems with the Audi A4 in the long run, if a few basic rules apply: All TDIs regularly check the flywheel and fingers away from the Multitronic. Otherwise, there are hardly any real problems.

The Audi A4 B7 is a flawed car. Power steering oil must be checked from time to time. Attention must be paid to the hoses of the brake system. Rear axle and clutch problems were also noted. Spark plugs need to be checked and replaced regularly. It is also important to check the gear change intervals.

Versions of the 16-valve engine (e.g. BLB, BLC, BNA, BRE, BRF…) had problems with a cracked cylinder head in the first two years.

The oil pump intake filter can become clogged over time, resulting in a decrease in oil pressure in the 1.8 T engine lubrication system, especially in the case of neglected engine oil change or a longer engine oil change interval.

1,8 liter petrol engines suffer from excessive consumption of engine oil.

1.6, 1.8 T and V6 petrol engines. On models manufactured between January 2001 and January 2003, frequent ignition cable failures.

2.0 TFSI oil pressure indicator illuminates, oil pump failure.

For gasoline, you must keep an eye on the 2.0 TFSI engine, possible damage to the high-pressure camshaft pump and the high-pressure pump cups. There is a constant loss of power, and instantaneous power loss at high speed, noise, twitching.

Engine 2.0 TFSI 140 HP. On models manufactured through August 2005, the risk of a cylinder head cracking at one of its point clamps on the engine block. Causes the possibility of oil passing into the coolant. Risk of engine damage if the driver is still driving despite the dashboard warning light.

The FSI engine breaks the water pump and stops turning. The engine overheats if it does not immediately respond to the rising temperature.

TDI engines. Turbine failures at different miles.

Beware of diesel particulate filters! An increase in the oil level is a clear signal that the soot particle filter is already heavily soiled and probably needs to be replaced.

1,9 TDI In the case of high mileage of about 250000 km or more, the problem of injector splashing may be present, resulting in a dilution of engine oil. Dilution of the oil can also occur in the event of incomplete regeneration DPF filters.
General functioning DPF filters the 1.9 TDI engine is not the most reliable, especially if it is often driven on shorter distances.
At higher mileage the problem with the injectors, the symptoms of rough work or worse start of a particularly cold one, the car needs longer rolling. Sometimes the flowmeter malfunctions, the problem with the turbine and if it is not serviced on a regular basis is the risk of a toothed belt. There is also a problem with the camshaft wear. Otherwise, the 1.9 TDI is considered the most reliable diesel in the Audi A4.

Engine 1.9 TDI 100 hp, 116 hp and 130 hp. On models manufactured from March to August 2004, fuel leaks may occur. Caused by screw problems, screw breakage, at the pump above the nozzle. Revocation March 2005 control and screw replacement if necessary.

1.9 TDI PD It is recommended not to use a service interval of 30000 km, but to change engine oil after 15 000 km. Excessively worn motor oil can damage the turbine, engine mechanics, and cause gaskets to fail faster.

The 1.9 TDI DPF filter is the biggest engine problem. Later modification of the software brought a partial improvement, but still the risk of being clogged and switching to safe mode.

1.9 TDI 16V engine, a common problem with a cracked cylinder head, especially in 2004 and 2005.

Oil pump drive at 2.0 TDI PD inclined shear, destroys the engine.

The 2.0 TDI gives less problems than the Volkswagen, but you may have problems with the injector pump, turbo compressor failure or flywheel.

TDI engines. Some cases of engine ECU problems, including the 2.0 TDI: it goes into standby mode with reduced performance. It can be "refreshed" carefree after a few minutes with the ignition off, the ECU engine needs to be reprogrammed.

2.0 TDI Excessive flywheel wear, which also has a shorter lifespan than the 1.9 TDI, is also significantly more expensive.
Longer miles often include excessively worn turbochargers, which are manifested by increased engine oil consumption and increased noise (whistling). Compared to 1.9 TDI 2.0 TDI is more likely to have problems with higher engine oil consumption. As with the 1.9 TDI, there will be more problems with the injectors, leading to a dilution of engine oil. Dilution of the oil can also occur in the event of a tandem pump leak or in the event of incomplete regeneration of the DPF filter.
Even in the case of the 2.0 TDI, the DPF works problematically and often clogs the filter, especially when driving over shorter distances. Sometimes a faulty fuel pump in the tank occurs, which causes problems with starting, that is, the vehicle will not start.

The Audi A4 b7 oil pump drive goes over a chain or hexagonal axle. The problem is in both solutions. The chain is like an oil pump drive, the teeth on the sprocket get eaten over time and the chain starts to slide. As a result, the oil pressure in the lubrication system drops. Sometimes the chain slips completely and the engine runs out of grease. In the case of the sixth-angle, the problem is in the soft material, where over time there is a problem with the wear of the hexagon when rotating, again resulting in the failure of the lubrication of the engine. Thus, if the oil warning light illuminates, the engine must be stopped immediately, otherwise the engine failure will follow. The life of both solutions is about 100 to 000 km depending on how the vehicle and engine are used.

2.0 TDI In the case of the 125 KW version (BMR), common problems with the piezo injector VDO -Siemens. Due to the smaller hole, injectors are significantly sensitive to fuel quality. Thus, they will become clogged, reducing the effect and increasing the smoke emission of the engine. There is a buildup on the DPF filter and faster clogging of the DPF, as the dirty injectors are not able to produce enough dose to burn soot. Injectors must therefore be cleaned frequently and sometimes replaced.

The biggest weakness of the 2.5 TDI is its reliability and technical problems. Many drivers consider this engine one of the worst Audi (Vw Group) engines, rightly so. Needless to say, the main culprit for the mediocre reputation of the engine is the original 110 KW version.
The younger generation, since 2003, engines have been improved, but in all 2,5 V6 TDIs there are problems with the fuel injection system, too frequent injector failures. Fuel pump failures in the tank.
Poor ventilation of the engine block, filter clogging in the separator can occur. If it clogs the separator, it causes an increase in oil pressure and oil leaks through the various engine parts. It is therefore recommended that the separator be cleaned for a limited period. Probably the most serious problem with 2.5 TDI engines is the excessively worn axles and bearings. The reason for the excessive wear of the axles and bearings is a design error in the form of poor circulation of engine oil that is needed for lubrication, the problem is the length of service interval from 20 000 km to 30 000 km. It is therefore recommended to change the oil every 15 km or once a year. And so the entire engine lubrication system had to be redesigned. Engines from the system for the new lubrication system start with B for example BDH, BAU, BCZ etc.

A certain weakness of this engine is the Bosch VP44 centrifugal rotary pump, a failure of the ECU pump.

2.7 TDI engine - sometimes does not start or problematic operation, which usually means a faulty pressure sensor in the bus, rail.

2.7 TDI - It often happens that immediately after the beginning, you hear a short rattle accompanied by improper work. They blame the drive chain, the oil pressure drops on the hydraulic chain spanner. Over time, this rattle becomes stronger and requires the replacement of the hydraulic spanner and sometimes the chain. In extreme cases, it can skip the chain and cause serious problems.

2.7 TDI -In many miles the problem with the injectors, which is manifested by increased noise, uneven operation and as much decrease in engine power.

The all-new 2.7 TDI and 3.0 TDI engines are really very dynamic, but… they were perfect in the days of their youth. Today, most of them have covered more than 300000 km and are struggling with the problem of drive chains, replacing chains is expensive. they also have problems with injectors that inject the wrong fuel and burn pistons.

2.7 TDI and 3.0 TDI - white smoke and uneven engine operation may be a sign of piezo injector failure.

In the case of Tiptronic, it says a lifetime oil filling, it is recommended to change the oil after about 90000 km, which will make for very solid transmission durability.

The much shorter life cycle is characterized by the Multitronic transmission, especially in relation to more powerful engines with more torque. Repairing is quite expensive. With both automatic transmissions, the transmission control unit, which is expensive to repair, can sometimes fail.

Numerous Multitronic gearbox failures, sometimes severe failures require complete replacement after 60000 km. Symptom felt excessive slipping, especially cold impossible departure.

Quattro drive - its disadvantage is that it sometimes leaks oil.

The Audi A4 has problems with the steering wheel, wheel bearings and brake hoses.

Braking vibration indicates faulty brake discs.

Sometimes known problems with electricity are climate control, windows, mirrors, seat heating, etc., and a common cause is a faulty comfort module (8E0959433).

The Audi A4 occasionally suffers from the leakage of freon from the air conditioner.

Sometimes the electronics of the Audi A4 go awry. Problems with central locking, electronics, engine failures or flickering liquid crystal displays are typical of this model.

Central brake light not working and / or rear window washer / wiper not working, electrical installation broken next to tailgate / tailgate hinges, repair electrical installation.

Occasional air conditioner compressor malfunctions, noticeably reducing the cooling effect.
When changing the climate compressor, it is necessary to extend the system.

B7 models often have xenon lamp inverter failures due to leakage or the use of cheap bulbs. The Audi A4 B7 very often has problems with a defective xenon lamp leveling sensor.

In the oldest specimens, the large central display on the instrument panel occasionally does not work.

Power steering noise, check the oil level in the power steering oil bottle (below MAX) or the air in the power steering oil.

Water in the front passenger compartment, water in the control module in the front passenger compartment, loosen the pollen filter housing gasket, replace the modified pollen filter housing.

Inside, the gearbox bag material and steering wheel material wear out quickly, but this has no other consequences than the optical ones.

Used Audi A4 prices - overview

CONCLUSION

The mid-range car of the Audi A4 B7 is a very well-positioned car that is reliable and highly sought after in the market, with some flaws.

The Audi A4 B7 is a car that many people consider to be a reliable model. Unfortunately, people often choose the wrong engines, and later in operating a vehicle they are very disappointed that their car is causing so much trouble. To avoid such surprises, you need to carefully check the condition of the car and engine before buying.

Audi A4 B7 - Engines

Source: wikipedia.org

Mladen

Hi there, I am Mladen and I am an auto enthusiast. I started this blog years ago to help like minded people share information about latest cars, car servicing ideas, used car info, exotic cars, and auto technology. You will find helpful articles and videos on a wide variety of cars - Audi, Mercedes, Toyota, Porsche, Volvo, BMW and much more. Ping us if you have anything cool to share on latest cars or on how to make older cars more efficient, or just want to say hi!