Audi A4 B6 (2000-2004) – batteries


Replacing the battery in an Audi A4 B6, a model produced by the German automotive giant from 2000 to 2004, is a task that many owners of this vehicle can perform on their own. This process is not complicated and usually does not require specialized equipment, making it an ideal project to carry out in a home garage. However, as with any vehicle-related procedure, replacing the battery requires precision and adherence to specific steps to ensure safety and proper functioning of the car after the task is completed.

The battery in the Audi A4 B6 is located in a somewhat unusual place for most modern vehicles – it is installed in the trunk on the right side, under the floor. This location has its benefits, including protecting the battery from extreme temperatures and road contaminants, which can extend its lifespan. However, for those unfamiliar with this placement, accessing the battery may come as a surprise and initially seem less intuitive.

Replacing the battery in this model of Audi requires removing any tools stored in the trunk, which can be somewhat troublesome if the battery fails on the road. Despite this, the replacement process itself is straightforward and can usually be completed in less than an hour, which is a significant advantage for those who prefer to perform basic maintenance themselves.

Standard batteries used in the Audi A4 B6 are between 242 mm and 315 mm in length. It is important to choose a battery that not only fits in size but also meets the requirements for starting power and capacity, which are essential for ensuring optimal performance and reliability of the vehicle. An improper battery selection can lead to starting problems and even damage the vehicle’s electronic systems.

Before proceeding with the battery replacement, it is also worthwhile to check the condition of the cables and terminals leading to the battery. Corrosion or loose connections can contribute to starting problems and are a common issue, especially in older vehicles. Clean, well-fitted terminals are crucial for maintaining good electrical connections and full functionality of the battery.

After installing the new battery, it is a good idea to conduct a few simple tests to ensure that everything has been connected correctly and the vehicle is ready to drive. These include checking whether the engine starts smoothly and testing the vehicle’s electronics, such as lights, radio, or navigation, to ensure there are no irregularities.

In summary, replacing the battery in an Audi A4 B6 is a task that can be easily performed on your own, saving time and money on garage visits. With knowledge of the battery’s location, the right tools, and adherence to recommendations for battery selection and installation, owners of this model can enjoy trouble-free use of their vehicle.



Audi A4 in version B6 was produced in the years 2000 – 2004. Below we present the specifications of batteries suitable for specific engines.

Basic parameters of batteries suitable for Audi A4 (2000-2004):

LayoutTerminal typesBase hold-down
0 – positive on the right side1B13

Audi A4 B6 – petrol engines:
  • 1.6
  • 1.8 T
  • 1.8 T quattro
  • 2.0
  • 2.0 FSI
  • 2.4

ModelCapacity and CCADimensions (LxWxH)Price
Bosch S4
S40 05
60 Ah
540 A
242x175x190 mmMore
Bosch S5
S50 05
63 Ah
610 A
242x175x190 mmMore
Exide Excell
EB620
62 Ah
540 A
242x175x190 mmMore
Exide Premium
EA640
64 Ah
640 A
242x175x190 mmMore
Halfords Standard
HCB 027
62 Ah
550 A
242x175x190 mmMore
Lucas Supreme
LS027
65 Ah
640 A
242x175x190 mmMore
Varta Blue Dynamic
D24
60 Ah
540 A
242x175x190 mmMore
Varta Silver Dynamic
D15
63 Ah
610 A
242x175x190 mmMore
For the 1.6, 1.8 T, 1.8 T quattro petrol engines and others from the above list, we select batteries measuring 242x175x190 mm with a capacity exceeding 59 Ah. The weakest of these is the battery Bosch S4 S40 05 which capacity is 60 Ah and Cold Cranking Amps is 540 A. The most powerful battery is Lucas Supreme LS027 of a capacity 65Ah and Cold Cranking Amps: 640 A. All of the above motors have a base hold-down B13.

Audi A4 B6 – petrol engines:
  • 3.0
  • 3.0 quattro
  • S4 quattro

ModelCapacity and CCADimensions (LxWxH)Price
Bosch S5
S50 11
85 Ah
800 A
315x175x190 mmMore
Exide Excell
EB800
80 Ah
640 A
315x175x190 mmMore
Exide Premium
EA900
90 Ah
720 A
315x175x190 mmMore
Varta Blue Dynamic
F16
80 Ah
740 A
315x175x190 mmMore
Varta Silver Dynamic
F19
85 Ah
800 A
315x175x190 mmMore
The above three petrol engines of the Audi A4 B6, namely 3.0 ,3.0 quattro and S4 quattro, will perform best with batteries of at least 77 Ah capacity. We recommend choosing higher-end battery models for cars with a large number of optional extras. The weakest of these is the battery Exide Excell EB800 which capacity is 80 Ah and Cold Cranking Amps is 640 A. The most powerful battery is Exide Premium EA900 of a capacity 90Ah and Cold Cranking Amps: 720 A. All of the above motors have a base hold-down B13.

Audi A4 B6 – diesel engines:
  • 1.9 TDI
  • 1.9 TDI quattro
  • 2.5 TDI
  • 2.5 TDI quattro

ModelCapacity and CCADimensions (LxWxH)Price
Bosch S4
S40 08
74 Ah
680 A
278x175x190 mmMore
Bosch S5
S50 08
77 Ah
780 A
278x175x190 mmMore
Exide Excell
EB740
74 Ah
680 A
278x175x190 mmMore
Exide Premium
EA770
77 Ah
760 A
278x175x190 mmMore
Halfords Standard
HCB 096
76 Ah
680 A
278x175x190 mmMore
Lucas Premium
LP096
75 Ah
680 A
278x175x190 mmMore
Lucas Supreme
LS096
78 Ah
780 A
278x175x190 mmMore
Varta Blue Dynamic
E11
74 Ah
680 A
278x175x190 mmMore
Varta Silver Dynamic
E44
77 Ah
780 A
278x175x190 mmMore
The Audi A4 B6 with diesel engines 1.9 TDI, 1.9 TDI quattro, 2.5 TDI, and the others mentioned above, should be equipped with a battery sized 276x175x190 mm or 278x175x190 mm, with a minimum capacity of 71 Ah. The most basic battery of this set is Bosch S4 S40 08 of a capacity 74Ah and 680A Cold Cranking Amps, the battery with the biggest capacity is Lucas Supreme LS096 of a capacity 78 Ah, having 780A Cold Cranking Amps. All of the above motors have a base hold-down B13.
If you’re still unsure which battery fits your Audi A4 , or if you want to help others in their selection, please send us a photo of your current battery in the comment section at the bottom of the page. You can also send the picture to contact@whatbattery.co.uk (we will place it in the comments to also help other users). Be sure to specify the car model, year, type, as well as the engine capacity and power. We’ll do our best to assist you!

See also information about other cars of this manufacturer

Audi 100 C4 (1990-1994) battery
Audi 80 8C, B4 (1991-1996) battery
Audi 90 B3 (1987-1991) battery
Audi A1 8X1 (2010-) battery
Audi A1 Sportback 8XA (2011-) battery
Audi A2 8Z0 (2000-2005) battery
Audi A3 I (8L) (1996-2003) battery
Audi A3 II (8P) (2003-2013) battery
Audi A3 II (8P) Sportback (2004-2013) battery
Audi A3 III (8V) (2012-) battery
Audi A3 III (8V) Limousine (2012-) battery
Audi A3 III (8V) Sportback (2012-) battery
Audi A4 B5 (1994-2000) battery
Audi A4 B7 (2004-2008) battery
Audi A4 B8 (2007-2015) battery
Audi A4 B9 (2015-2023) battery
Audi A4 Allroad B8 (2009-) battery
Audi A5 8T (2007-2016) battery
Audi A6 C4 (1994-1997) battery
Audi A6 C5 (1997-2005) battery
Audi A6 C6 (2004-2011) battery
Audi A6 C7 (2011-) battery
Audi A6 Allroad C6 (2006-2011) battery
Audi A6 Allroad C7 (2012-) battery
Audi A7 (2010-) battery
Audi A8 I (D2) (1994-2002) battery
Audi A8 II (D3) (2002-2010) battery
Audi A8 III (D4) (2010-) battery
Audi Q2 (2016-2023) battery
Audi Q3 8U (2011-) battery
Audi Q5 I (8R) (2008-2017) battery
Audi Q7 I (4L) (2005-2015) battery
Audi Q7 II (4M) (2015-) battery
Audi TT I (8N3) (1998-2006) battery
Audi TT II (8J3) (2006-2014) battery


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