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Direct Fit Horn - High Tone
Replacement
Part Number: REPC502504
Vehicle Info Required to Guarantee Fit
$16.44
Vehicle Fitment
  • 1996 - 2001 Audi A4 Base 6 Cyl 2.8L
  • 1997 - 2002 Audi A4 Base 4 Cyl 1.8L
  • 1998 Audi A4 Avant 6 Cyl 2.8L
  • 2002 Audi A4 Base 6 Cyl 3.0L
Product Details
Notes : High Tone, With Mounting Bracket, 2 Male Blade TerminalQuantity Sold : Sold individuallyWarranty : 1-year unlimited-mileage warranty
Direct Fit Horn - Low Tone
Replacement
Part Number: REPC502505
Vehicle Info Required to Guarantee Fit
$13.50
Vehicle Fitment
  • 1996 - 2001 Audi A4 Base 6 Cyl 2.8L
  • 1997 - 2002 Audi A4 Base 4 Cyl 1.8L
  • 1998 Audi A4 Avant 6 Cyl 2.8L
  • 2002 Audi A4 Base 6 Cyl 3.0L
Product Details
Notes : Low ToneQuantity Sold : Sold individuallyWarranty : 1-year unlimited-mileage warranty
Direct Fit Horn - Tone
Replacement
Part Number: SET-REPC502504-2
Vehicle Info Required to Guarantee Fit
$28.44
Vehicle Fitment
  • 1996 - 2001 Audi A4 Base 6 Cyl 2.8L
  • 1997 - 2002 Audi A4 Base 4 Cyl 1.8L
  • 1998 Audi A4 Avant 6 Cyl 2.8L
  • 2002 Audi A4 Base 6 Cyl 3.0L
Product Details
Components : (2) HornsQuantity Sold : Set of 2Warranty : 1-year unlimited-mileage warranty
Control Arm with Ball Joint Assembly Front Upper Set Forward & Rearward Driver or Passenger Side
Vehicle Info Required to Guarantee Fit
$58.77
Vehicle Fitment
  • 1996 - 2001 Audi A4 Base 6 Cyl 2.8L
  • 1997 - 2005 Audi A4 Base 4 Cyl 1.8L
  • 1998 Audi A4 Avant 6 Cyl 2.8L Adjustable, Plus Or Minus 1.5 Degree Camber/Caster
  • 2002 - 2005 Audi A4 Base 6 Cyl 3.0L
  • 2003 - 2005 Audi A4 Cabriolet 6 Cyl 3.0L
  • 2003 - 2006 Audi A4 Cabriolet 4 Cyl 1.8L
  • 2004 Audi A4 Avant 6 Cyl 3.0L Adjustable, Plus Or Minus 1.5 Degree Camber/Caster
  • 2004 - 2005 Audi A4 Avant 4 Cyl 1.8L
  • 2005 - 2014 Audi A4 Base 4 Cyl 2.0L
  • 2006 - 2008 Audi A4 Base 6 Cyl 3.2L
  • 2007 - 2008 Audi A4 Cabriolet 4 Cyl 2.0L
  • 2015 Audi A4 Prestige 4 Cyl 2.0L Adjustable, Plus Or Minus 1.5 Degree Camber/Caster
  • 2015 - 2016 Audi A4 Komfort 4 Cyl 2.0L
  • 2015 - 2016 Audi A4 Premium Plus 4 Cyl 2.0L
  • 2015 - 2016 Audi A4 Premium 4 Cyl 2.0L
Product Details
Location : Front, Driver Or Passenger Side, Upper, Frontward And Rearward ArmNotes : With BoltDesign : ForgedGreasable : Non-greasableAdjustability : AdjustableBall Joint Included : With ball joint(s)Bushing Included : With bushing(s)Bushing Material : Rubber bushingQuantity Sold : Set of 2Recommended Use : OE ReplacementInterchange Part Number : RK100218, CMS70185Warranty : 1-year unlimited-mileage warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including lead and mineral oils, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Control Arm - Front, Driver and Passenger Side, Upper
Replacement
Part Number: SET-RA28150001-4
Vehicle Info Required to Guarantee Fit
$111.66
Vehicle Fitment
  • 1996 - 2001 Audi A4 Base 6 Cyl 2.8L
  • 1997 - 2005 Audi A4 Base 4 Cyl 1.8L
  • 1998 Audi A4 Avant 6 Cyl 2.8L FWD
  • 2002 - 2005 Audi A4 Base 6 Cyl 3.0L
  • 2003 - 2005 Audi A4 Cabriolet 6 Cyl 3.0L
  • 2003 - 2006 Audi A4 Cabriolet 4 Cyl 1.8L
  • 2004 Audi A4 Avant 6 Cyl 3.0L FWD
  • 2004 - 2005 Audi A4 Avant 4 Cyl 1.8L
  • 2005 - 2014 Audi A4 Base 4 Cyl 2.0L
  • 2006 - 2008 Audi A4 Base 6 Cyl 3.2L
  • 2007 - 2008 Audi A4 Cabriolet 4 Cyl 2.0L
  • 2015 Audi A4 Prestige 4 Cyl 2.0L FWD, Plus or Minus 1.5 Degree Camber/Caster
  • 2015 - 2016 Audi A4 Komfort 4 Cyl 2.0L
  • 2015 - 2016 Audi A4 Premium Plus 4 Cyl 2.0L
  • 2015 - 2016 Audi A4 Premium 4 Cyl 2.0L
Product Details
Location : Front, Driver And Passenger Side, UpperNotes : With BoltComponents : (4) Control ArmsDesign : ForgedGreasable : Non-greasableAdjustability : AdjustableBall Joint Included : With ball joint(s)Bushing Included : With bushing(s)Bushing Material : Rubber bushingQuantity Sold : Set of 2Recommended Use : OE ReplacementInterchange Part Number : RK100218, CMS70185Warranty : 1-year unlimited-mileage warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including lead and mineral oils, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Motor Mount
Replacement
Part Number: REPA311703
Vehicle Info Required to Guarantee Fit
$18.29
Vehicle Fitment
  • 1997 - 2005 Audi A4 Base 4 Cyl 1.8L
  • 2003 - 2006 Audi A4 Cabriolet 4 Cyl 1.8L
  • 2004 - 2005 Audi A4 Avant 4 Cyl 1.8L
  • 2007 Audi A4 Base 4 Cyl 2.0L Manual Transmission
Product Details
Location : Front, Driver SideQuantity Sold : Sold individuallyWarranty : 1-year unlimited-mileage warranty
Motor Mount
Replacement
Part Number: REPA311703
Vehicle Info Required to Guarantee Fit
$18.29
Vehicle Fitment
  • 1996 - 2001 Audi A4 Base 6 Cyl 2.8L
  • 1998 Audi A4 Avant 6 Cyl 2.8L Oem Hydraulic
Product Details
Location : Front, Driver Or Passenger SideQuantity Sold : Sold individuallyWarranty : 1-year unlimited-mileage warranty
Motor Mount - Front, Driver and Passenger Side
Replacement
Part Number: SET-REPA311703-2
Vehicle Info Required to Guarantee Fit
$34.74
Vehicle Fitment
  • 1996 - 2001 Audi A4 Base 6 Cyl 2.8L
  • 1998 Audi A4 Avant 6 Cyl 2.8L Oem Hydraulic
Product Details
Location : Front, Driver And Passenger SideComponents : (2) Motor MountsQuantity Sold : Set of 2Warranty : 1-year unlimited-mileage warranty
Replacement Motor Mount and Transmission Mount Kit
Replacement
Part Number: KIT1-092017-06-A
Vehicle Info Required to Guarantee Fit
$55.68
Vehicle Fitment
  • 1996 - 1999 Audi A4 Base 6 Cyl 2.8L
  • 1997 - 2005 Audi A4 Base 4 Cyl 1.8L
  • 1998 Audi A4 Avant 6 Cyl 2.8L FWD, Automatic Transmission, OEM Hydraulic, FWD, Manual Transmission, OEM Hydraulic, FWD, OEM Hydraulic
  • 2004 - 2005 Audi A4 Avant 4 Cyl 1.8L
  • 2005 - 2006 Audi A4 Cabriolet 4 Cyl 1.8L
Product Details
Location : Front, Driver And Passenger SideComponents : (2) Motor Mounts, and (2) Transmission MountsQuantity Sold : Set of 4Warranty : 1-year unlimited-mileage warranty
Clutch Master Cylinder
Replacement
Part Number: REPA316001
Vehicle Info Required to Guarantee Fit
$21.84
Vehicle Fitment
  • 1997 - 2002 Audi A4 All Submodels All Engines
Product Details
Quantity Sold : Sold individuallyWarranty : 1-year unlimited-mileage warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Replacement Clutch Master Cylinder and Clutch Slave Cylinder Kit
Vehicle Info Required to Guarantee Fit
$43.12
Vehicle Fitment
  • 1997 - 2001 Audi A4 Base 6 Cyl 2.8L
  • 1998 Audi A4 Avant 6 Cyl 2.8L From Chassis no. 8D-V-180 001 To 8D-X-199 999
  • 1998 - 2002 Audi A4 Base 4 Cyl 1.8L
  • 2002 Audi A4 Base 6 Cyl 3.0L Chas: -8D2010000
Product Details
Notes : with Clutch Slave CylinderComponents : (1) Clutch Master Cylinder, and (1) Clutch Slave CylinderQuantity Sold : Set of 2Warranty : 1-year unlimited-mileage warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Control Arm with Ball Joint Assembly, Front Upper Forward Passenger Side
Vehicle Info Required to Guarantee Fit
$22.26
Vehicle Fitment
  • 1996 - 2001 Audi A4 Base 6 Cyl 2.8L
  • 1997 - 2005 Audi A4 Base 4 Cyl 1.8L
  • 1998 Audi A4 Avant 6 Cyl 2.8L
  • 2002 - 2005 Audi A4 Base 6 Cyl 3.0L
  • 2003 - 2005 Audi A4 Cabriolet 6 Cyl 3.0L
  • 2003 - 2006 Audi A4 Cabriolet 4 Cyl 1.8L
  • 2004 Audi A4 Avant 6 Cyl 3.0L
  • 2004 - 2005 Audi A4 Avant 4 Cyl 1.8L
  • 2005 - 2008 Audi A4 Base 4 Cyl 2.0L
  • 2006 - 2008 Audi A4 Base 6 Cyl 3.2L
  • 2007 - 2009 Audi A4 Cabriolet 4 Cyl 2.0L
Product Details
Location : Front, Passenger Side, Upper, FrontwardDesign : ForgedGreasable : Non-greasableAdjustability : Non-AdjustableBall Joint Included : With ball joint(s)Bushing Included : With bushing(s)Bushing Material : Rubber bushingQuantity Sold : Sold individuallyRecommended Use : OE ReplacementInterchange Part Number : MK90498, 520764, RK90498, CK90498, GK90498, 1024963, 8D0411318D, 8E0407506A, CMK90498, 520-764, 102-4963Replaces OE Number : 8D0411318D, 8E0407506AWarranty : 1-year unlimited-mileage warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including lead and mineral oils, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Control Arm with Ball Joint Assembly, Front Upper Forward Driver Side
Vehicle Info Required to Guarantee Fit
$22.26
Vehicle Fitment
  • 1996 - 2001 Audi A4 Base 6 Cyl 2.8L
  • 1997 - 2005 Audi A4 Base 4 Cyl 1.8L
  • 1998 Audi A4 Avant 6 Cyl 2.8L
  • 2002 - 2005 Audi A4 Base 6 Cyl 3.0L
  • 2003 - 2005 Audi A4 Cabriolet 6 Cyl 3.0L
  • 2003 - 2006 Audi A4 Cabriolet 4 Cyl 1.8L
  • 2004 Audi A4 Avant 6 Cyl 3.0L
  • 2004 - 2005 Audi A4 Avant 4 Cyl 1.8L
  • 2005 - 2009 Audi A4 Base 4 Cyl 2.0L
  • 2006 - 2008 Audi A4 Base 6 Cyl 3.2L
  • 2007 - 2009 Audi A4 Cabriolet 4 Cyl 2.0L
Product Details
Location : Front, Driver Side, Upper, FrontwardDesign : ForgedGreasable : Non-greasableAdjustability : Non-AdjustableBall Joint Included : With ball joint(s)Bushing Included : With bushing(s)Bushing Material : Rubber bushingQuantity Sold : Sold individuallyRecommended Use : OE ReplacementInterchange Part Number : CMK90497, 8E0407505P, 8E0407505A, 8E0407505P, 8E0407505A, 8D0411317D, 8D0407505F, 8D0407505B, 8D0407505H, 520-763, RK90497, CK90497, GK90497, 102-4964Replaces OE Number : 8E0407505P, 8E0407505A, 8D0411317D, 8D0407505F, 8D0407505B, 8D0407505HWarranty : 1-year unlimited-mileage warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including lead and mineral oils, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Control Arm with Ball Joint Assembly, Front upper Rearward Passenger Side
Vehicle Info Required to Guarantee Fit
$19.53
Vehicle Fitment
  • 1996 - 2001 Audi A4 Base 6 Cyl 2.8L
  • 1997 - 2005 Audi A4 Base 4 Cyl 1.8L
  • 1998 Audi A4 Avant 6 Cyl 2.8L
  • 2002 - 2005 Audi A4 Base 6 Cyl 3.0L
  • 2003 - 2005 Audi A4 Cabriolet 6 Cyl 3.0L
  • 2003 - 2006 Audi A4 Cabriolet 4 Cyl 1.8L
  • 2004 Audi A4 Avant 6 Cyl 3.0L
  • 2004 - 2005 Audi A4 Avant 4 Cyl 1.8L
  • 2005 - 2008 Audi A4 Base 4 Cyl 2.0L
  • 2006 - 2008 Audi A4 Base 6 Cyl 3.2L
  • 2007 - 2008 Audi A4 Cabriolet 4 Cyl 2.0L
  • 2009 Audi A4 All Submodels All Engines
Product Details
Location : Front, Passenger Side, Upper, RearwardDesign : ForgedGreasable : Non-greasableAdjustability : Non-AdjustableBall Joint Included : With ball joint(s)Bushing Included : With bushing(s)Bushing Material : Rubber bushingQuantity Sold : Sold individuallyRecommended Use : OE ReplacementInterchange Part Number : CMK90700, 8E0407510A, 8E0407510A, 8E0407510C, 8E0407510P, 520-768, RK80526, K80526, CK80526, GK90699Replaces OE Number : 8E0407510A, 8E0407510C, 8E0407510PWarranty : 1-year unlimited-mileage warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including lead and mineral oils, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Control Arm with Ball Joint Assembly, Front Upper Rearward Driver Side
Vehicle Info Required to Guarantee Fit
$19.53
Vehicle Fitment
  • 1996 - 2001 Audi A4 Base 6 Cyl 2.8L
  • 1997 - 2005 Audi A4 Base 4 Cyl 1.8L
  • 1998 Audi A4 Avant 6 Cyl 2.8L
  • 2002 - 2005 Audi A4 Base 6 Cyl 3.0L
  • 2003 - 2005 Audi A4 Cabriolet 6 Cyl 3.0L
  • 2003 - 2006 Audi A4 Cabriolet 4 Cyl 1.8L
  • 2004 Audi A4 Avant 6 Cyl 3.0L
  • 2004 - 2005 Audi A4 Avant 4 Cyl 1.8L
  • 2005 - 2008 Audi A4 Base 4 Cyl 2.0L
  • 2006 - 2008 Audi A4 Base 6 Cyl 3.2L
  • 2007 - 2008 Audi A4 Cabriolet 4 Cyl 2.0L
  • 2009 Audi A4 All Submodels All Engines
Product Details
Location : Front, Driver Side, Upper, RearwardDesign : ForgedGreasable : Non-greasableAdjustability : Non-AdjustableBall Joint Included : With ball joint(s)Bushing Included : With bushing(s)Bushing Material : Rubber bushingQuantity Sold : Sold individuallyRecommended Use : OE ReplacementInterchange Part Number : MK90699, 520767, RK80525, K80525, CK80525, 1024962, 8E0407509A, CMK90699, 520-767, 102-4962Replaces OE Number : 8E0407509AWarranty : 1-year unlimited-mileage warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including lead and mineral oils, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Page 1 of 724 | Showing 1 - 15 of 10855 results

Audi A4 Customer Reviews

Direct Fit Horn - Low Tone
May 15, 2020
Fits Perfect
Fits 99 Ford ranger the extra terminal is for ground.
William Ballard
VERIFIED PURCHASER
Purchased on Apr 30, 2020
Completely satisfied.
Thomas Knapik
VERIFIED PURCHASER
Purchased on Apr 25, 2020
Alsome just what I needed thanks will buy from again
Rick Dzurovcin
VERIFIED PURCHASER
Purchased on Apr 26, 2020

Audi A4 Guides

Interesting Facts About the Audi A4

  • If it weren't for the Audi A4, the brand might not be what it is today. This vehicle single-handedly revived the Audi brand when the company's sales figures went through a huge slump back in the late 1980s. It was a huge success that Audi's image went from being a conservative vehicle company to become a premium luxury car maker. Today, it's on the same league as other well-known German luxury auto manufacturers.

  • The actual cause of Audi's sales slump in the 1980s can actually be traced to problems with sudden acceleration incidents associated with the Audi 5000. Worse, it was featured in the TV program 60 minutes, which all but ruined Audi's image in the US. If it weren't for the A4, who knows what would have happened with Audi.

  • The Audi A4 was one of the first vehicles to receive the new multitronic transmission system, which was spelled with a lower-case 'm' by Audi for some reason. Developed by LuK, it became the company's own version of the continuously variable transmission that allowed it to change steplessly through an infinite number of effective gear ratios. This resulted in better fuel economy, lighter overall weight, and faster response when shifting gears.

  • On older A4s, the chassis is actually taken from the existing Volkswagen B6 PL46 platform. To better understand the company's platform nomenclature, the code PL46 actually stands for passenger car longitudinal platform, size 4, generation 6.

  • Audi actively participates in the German Touring Car Masters or the Deutsche Tourenwagen Masters and has actually won a total of eight DTM titles to date. The Audi A4 was one of the best vehicles that competed in this race, and is actually responsible for winning five DTM title back in 2004, 2007, 2008, 2009, and most recently in 2011.

  • The Audi A4 actually holds a world speed record of its own. Back in 2009, Hohenester Sport modified an HS 650 Audi B7 A4 Quattro to set a new world speed record as the fastest biogas-powered land vehicle. It clocked in at 364.6 KM/H (226.6 MPH) when it was driven by Jrgen Hohenester in the Papenburg test track located in Lower Saxony, Germany.

Common Problems with the Audi A4

One of Audi's best-known vehicles is the A4, a compact executive car that was first introduced back in 1994 and is still being produced today. Often credited as one of Audi's most commercially successful vehicles, the A4 has long been a popular choice for those who are after a compact luxury car at a more affordable price range. Even though it's well received by drivers and critics alike, this vehicle has its share of common problems that have affected owners over the years. Recognizing these issues beforehand is important so that motorists can have these problems fixed or replaced with Audi A4 parts before they end up ruining their precious ride.


Gearbox issues

Most Audi owners have reported numerous problems with the A4's automatic gearbox, and most of these issues revolve around the car's Electronic Control Unit or ECU. This component controls the movement of the transmission system whenever a driver selects gears. A warning light will usually flash on the vehicle's dashboard whenever there's a problem with the ECU. Should the ECU fail entirely, the vehicle will lose power, the driver can't shift to reverse, and the car won't even move when shifting to drive. Unfortunately, Audi hasn't issued a recall or explanation for the A4's ECU problems.

On a lesser note, some owners have reported that the A4's gearbox tends to slip. Once the gearbox begins to slip, the vehicle would suddenly jerk or hesitate whenever it's accelerating. Most owners agree that this issue can often be traced back to low transmission fluid, worn internal gears, or even improper gear adjustment. It's best to have the gearbox checked ASAP before any major problem further damages the gearbox.


High oil consumption

It seems that some A4 models are also experiencing higher than normal oil consumption, especially when they are in stop-and-go traffic. It is a common problem with the 2009 - 2011 Audi A4 and is often traced to a faulty crankcase pressure-regulating valve. Owners who notice a sudden increase in oil consumption from their Audi A4 should have this valve checked to see if it needs to be replaced immediately. Do note that the front crankshaft seal must also be replaced whenever this valve is removed.

Seven Terrific Facts about the Audi A4

The Audi A4 is a relatively new car that was introduced to the market less than 20 years ago. The built of the A4 was inspired by four genrations of the Audi 80, its predecessor. The Audi A4 shares its platform with other German made cars, mainly mid-size automobiles produced by its mother company, Volkswagen.


The current A4 incarnation, the B8, could potentially share the newest Volkswagen MLB platform with one of the vehicles to be introduced by its sister company, Porsche.


Like the last Audi 80 model that hit the shelves in the mid 90s, a high performance version of the Audi A4 was also made available. The Audi RS2 was a successful collaboration of the two premier German carmakers: Audi and Porsche. It was built on the Audi 80 Avant trim and was the first RennSport (RS) vehicle. Banking on this triumph, Audi decided to continue this limited edition performance vehicle with the Audi A4. This paved the way for the introduction of the RS4 Avant. By the way, RennSport is the German translation for racing sport.


In 1997, Audi became the first European car manufacturer to introduce the concept of the hyrbrid vehicle into series production by debuting the Audi A4 B5 platform hybrid version. It was dubbed the Audi Duo III.


In 2008, a concept vehicle derived from the Audi A4 TDI trim was unveiled in the Paris Motor Show. It has a stop-start system and regenerative braking that are not equipped in most cars at that time. In addition to that, another feature also included an electric motor-based power steering.


In 2009, a biofuel land speed record was claimed by a modified Audi A4. Hohenester Sport modified an Audi A4 with the B7 platform to churn out 690 bhp from the 3.0-liter twin-turbo V6 engine power plant. It set the new world record by traversing the test track in Papenburg, Lower Saxony at the top speed of 226.6 mph (364.6km/h).


In news related to speed, Audi Sport re-entered the Deutsche Tourenwagen Masters (DTM) in 2004 with an silhouette racing car Audi A4 DTM. A V8 engine powers it. DTM is a top flight racing tournament in Europe consisting of German made cars.

Intermittent Issues about the Audi A4

Compared to other vehicles in the Audi roster, the Audi A4 is one of the youngest cars in terms of production run. It was introduced in the year 1994 as a replacement to the Audi 80, one of the best mid-size sedans from the German automobile industry. Over the years, it has received plenty of love from the American public, as it continues to be one of the more popular sedan choices. The Audi A4 is a well-built vehicle. It only received a few complaints during its run. However, there are still intermittent issues that goes with the esteemed vehicle. Here are the popular ones.


Transmission

One of the issues that continues to come up again and again in most Audi A4 reviews is its oil consumption. Compared to other vehicles, the Audi A4 has high oil consumption. Even at only 30,000 miles, the A4's ECU makes the low oil engine light come off almost every 3000 miles. There have been numerous reports that claim this Audi A4 problem.


Brakes

On some of the Audi A4 models from the late 90s to the early 2000's, many owners have complained about the Electronic Anti-lock Braking System failing at some point. This is yet another alarming problem that may put lives and property in danger. Others reported that the brake wouldn't kick in even though the brake pedal is already pushed hard to the floor. The same problem was also present in the vehicles of Audi's mother company, Volkswagen, but they were recalled immediately.


Ignition

In various cases, the ignition problems have also plagued the Audi A4 in recent memory. More and more testimonies about the ignition coil failing in multiple cylinders have popped up recently. This issue causes the vehicle to stall, buckle, and stop; even while running in the middle of the interstate.


Recalls

In 2006, NHTSA ordered a recall of almost 30,000 Audi A4s for a problem with the electrical system, particularly the ignition switch. This affected owners of 1996 and 1997 Audi A4 models. In some models, the anchor point of the spring may crack, leading to a failure of the ignition key to return to the "on" position. This condition will cause electrical accessories such as the windshield wipers and headlights to become inoperative.

Earlier, potentially 39,300 Audi A4 units have been recalled in 1997 for accidental air bag deployment due to static electricity discharge. Low humidity conditions can activate the driver side air bag when the driver enters or exits the vehicle. Because of this, the driver could get injured. The problem was resolved by installing a ground wire on the driver side air bag.

FAQs—Audi A4

How does injecting water and alcohol into my Audi A4 engine help boost my car's performance?

Methyl alcohol is a good fuel source that could help the engine burn diesel more completely, giving it an extra boost. On the other hand, water could enhance your engine output as it absorbs heat and turns from liquid to gas, consequently lowering intake charge air temperature and adding more air for combustion. Moreover, as water turns into gas during combustion, the steam adds more push on the piston, giving it added torque. Injecting equal amounts of water and alcohol into your engine should give your engine adequate extra power while keeping it safe and keeping your expenses at a minimum.

I bought a second-hand A4 without DPF. Should I equip my Audi with DPF? What does it do?

DPF or Diesel Particulate Filter is a device that is fitted into the exhaust system of a diesel engine in order to remove particulates or soot from exhaust gas. It cleans itself by oxidizing or burning off the collected soot. This burning process reduces the particulates into carbon dioxide, carbon monoxide and other inorganic dusts. DPF equipped cars have sixty to seventy percent lower emissions than cars with no DPF. For cleaner exhausts, DPF is certainly good for cars; however, it is ideal only if you don't take your Audi for long drives. Long distance driving causes the engine to warm up, which consequently causes the DPF to clog more. When your car's equipped with DPF, make sure to use the exact oil requirement for your DPF engine to avoid problems in the long run.

I've been reading a lot about the benefits of biodiesel lately; now, I'm convinced I need to switch to biodiesel. Can all cars use it? Is it okay for my A4?

Renewable, environmentally safe, and affordable - these are just a few of the reasons why we should shift to biodiesel. According to the US Environmental Protection Agency, it helps achieve at least fifty seven percent reduction in gas emissions. But is it okay for your car? Unfortunately, not all cars can use biodiesel. Models made prior to 1992 are not fit for biodiesel as they have fuel lines with rubber hoses. Fortunately, A4s are produced in mid-90s, which means they are safe with biodiesel. There are many suppliers out there and getting it should not be a problem but make sure that what you buy conforms to the biodiesel fuel standards on factors such as acid value, absence of fatty acids, and sulfur content among others.

How do I know carbon has built up on the intake valves of my Audi car's engine?

Excessive carbon deposits affect your car's overall drivability. You would know carbon has already built up on the cylinder head when you experience engine vibrations especially after starting your car or when your car abnormally jerks. In addition, your fuel consumption would be abnormally high. Regular oil change and cleaning of valves will help you reduce carbon build up. To adequately clean the valves, you can remove the intake manifold and spray carbon cleaner directly on the area where the carbon has built up and leave it to soak.

The Making of a Legend: Audi A4 and its 18 Years of Posh, Performance, and Progress

The release of the Audi A4 is probably one of the biggest success stories in the entire history of luxury vehicles. It is the one responsible for bringing the German car company back on its feet after a massive sales drop in the early 90s. With millions of units sold around the world, there is definitely no doubt that the Audi A4 sealed the deal in putting Audi on the map as one of the world’s top luxury car manufacturers.

The upgraded spinoff

The Audi A4 line is a collection of compact cars designed to follow the footsteps of the not-so-popular Audi 80. Regarded as an upscale variation of the Volkswagen Passat, the Audi A4 comes in three different forms–sedan, convertible, and station wagon. The A4 instantly skyrocketed from its newbie status to one of the world’s favorite luxury vehicles because of the world-class finish of its exterior and interior and the vehicle’s undeniably powerful engine.

The B5 era (1994-2001)

The first generation of Audi A4 released in 1994 is based on the B5 platform of the Volkswagen group. The original A4s had a standard front-wheel drive, a longitudinal engine mounted at its front, and a wide selection of diesel and gasoline engines. The succeeding models added the wagon version as well as the latest 1.8-liter 20V engine equipped with five valves per cylinder.

In 1997, the Porsche-developed automatic transmission Tiptronic gearbox was introduced. The following year, the Audi A4 had a much-needed facelift by featuring an all-new 2.8-liter V6 engine, a 2.5-liter V6 TDI diesel engine with standard Quattro permanent all-wheel-drive, and an option for a six-speed manual transmission gearbox. Its light assembly and door handles were also redesigned.

The B6 years (2001-2005)

With the brand-new B6 platform and a C5-inspired exterior, the second generation A4 models debuted in 2001. Apart from a number of significant diesel and gasoline engine upgrades, the Audi A4 also featured the first Fuel Stratification Injection engine. The Tiptronic transmission and the Quattro system became available for the 1.9-liter and 2.5-liter V6 TDI units. And the new Multitronic continuously variable transmission for the front-wheel-drive models became standard. Additional innovations like the Electronic Stability Program, Anti-lock Braking System, and Electronic Brake Force Distribution were also introduced.

The B7 period (2005-2008)

Despite the B7 internal name, the third generation A4 still bore the B6 platform. The models under this generation underwent a total makeover with spanking new navigation systems, chassis electronics, steering settings, suspension geometry, and internal combustion engines featuring the Pumpe Duse Unit Injector. The Audi A4 also got the “Top Safety Pick for 2007” from the Insurance Institute for Highway Safety for its safety upgrades. These additional safety features include the side air bags on the front and rear seats and the side-guard curtain bags.

The B8 series and beyond (2008-Present)

The newest A4 B8 series rides a variation of the Audi Modular Longitudinal platform, which enhanced corner stability and handling through better mass distribution. A4 owners also get to enjoy a bigger trunk and wider rear legroom thanks to the 160- and 117-millimeter increase in wheelbase and length. The Auto-Drive, Audi Lane Assist, and a high-technology MMI system were also added as features.

The 2013 A4 is expected to take the luxury car industry by storm. The pride of Audi is back with its brand-new five-link front suspension, rain-sensing wipers, automatic headlights, and other innovative features. With four generations of successful developments in its record, the Audi A4 will NEVER fail to impress its patrons.

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