2003 Audi A6 Avant Quattro electrical system specifications

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Condition	Value

expand_moreAlternator charging current


All Audi diesel V6 2.5 L AFB engines	120–140 A120–140 A120–140 A
All Audi gasoline V6 2.7 L AJK engines	120 A120 A120 A
All Audi diesel V6 2.5 L AKE engines	120–140 A120–140 A120–140 A
All Audi diesel V6 2.5 L AKN engines	120–140 A120–140 A120–140 A
All Audi gasoline V6 2.7 L ARE engines	120 A120 A120 A
All Audi gasoline V8 4.2 L ARS engines	150 A150 A150 A
All Audi gasoline straight-8 4.2 L ASG engines	150 A150 A150 A
All Audi gasoline V6 3.0 L ASN engines	120–140 A120–140 A120–140 A
All Audi gasoline V8 4.2 L AWN engines	150 A150 A150 A
All Audi gasoline V6 2.7 L AZA engines	120 A120 A120 A
All Audi diesel V6 2.5 L BAU engines	120–140 A120–140 A120–140 A
All Audi diesel V6 2.5 L BDH engines	120–140 A120–140 A120–140 A
All Audi gasoline V6 2.7 L BES engines	120 A120 A120 A
All other modifications	90–120 A90–120 A90–120 A

expand_moreAlternator manufacturer


All Audi gasoline V6 2.7 L AJK engines	Valeo
All Audi gasoline V6 2.7 L ARE engines	Valeo
All Audi gasoline V8 4.2 L ARS engines	Bosch
All Audi gasoline straight-8 4.2 L ASG engines	Bosch
All Audi gasoline V8 4.2 L AWN engines	Bosch
All Audi gasoline V6 2.7 L AZA engines	Valeo
All Audi gasoline V6 2.7 L BES engines	Valeo

expand_moreAll other modifications


Variant 1	Bosch
Variant 2	Valeo

expand_moreBattery capacity


All Audi gasoline straight-4 1.8 L AEB engines	44 A⋅h44 A⋅h44 A⋅h
All Audi diesel V6 2.5 L AFB engines	95 A⋅h95 A⋅h95 A⋅h
All Audi gasoline straight-4 1.8 L AJL engines	44 A⋅h44 A⋅h44 A⋅h
All Audi diesel V6 2.5 L AKE engines	95 A⋅h95 A⋅h95 A⋅h
All Audi diesel V6 2.5 L AKN engines	95 A⋅h95 A⋅h95 A⋅h
All Audi gasoline straight-4 1.8 L ANB engines	44 A⋅h44 A⋅h44 A⋅h
All Audi gasoline straight-4 1.8 L APU engines	44 A⋅h44 A⋅h44 A⋅h
All Audi gasoline straight-4 1.8 L ARK engines	44 A⋅h44 A⋅h44 A⋅h
All Audi gasoline V8 4.2 L ARS engines	95 A⋅h95 A⋅h95 A⋅h
All Audi gasoline straight-8 4.2 L ASG engines	95 A⋅h95 A⋅h95 A⋅h
All Audi gasoline V8 4.2 L AWN engines	95 A⋅h95 A⋅h95 A⋅h
All Audi gasoline straight-4 1.8 L AWT engines	44 A⋅h44 A⋅h44 A⋅h
All Audi diesel V6 2.5 L BAU engines	95 A⋅h95 A⋅h95 A⋅h
All Audi diesel V6 2.5 L BDH engines	95 A⋅h95 A⋅h95 A⋅h
All other modifications	72 A⋅h72 A⋅h72 A⋅h

expand_moreBattery cold test current


All Audi gasoline straight-4 1.8 L AEB engines	220 A220 A220 A
to DIN standard
All Audi diesel V6 2.5 L AFB engines	450 A450 A450 A
to DIN standard
All Audi gasoline straight-4 1.8 L AJL engines	220 A220 A220 A
to DIN standard
All Audi diesel V6 2.5 L AKE engines	450 A450 A450 A
to DIN standard
All Audi diesel V6 2.5 L AKN engines	450 A450 A450 A
to DIN standard
All Audi gasoline straight-4 1.8 L ANB engines	220 A220 A220 A
to DIN standard
All Audi gasoline straight-4 1.8 L APU engines	220 A220 A220 A
to DIN standard
All Audi gasoline straight-4 1.8 L ARK engines	220 A220 A220 A
to DIN standard
All Audi gasoline V8 4.2 L ARS engines	450 A450 A450 A
to DIN standard
All Audi gasoline straight-8 4.2 L ASG engines	450 A450 A450 A
to DIN standard
All Audi gasoline V8 4.2 L AWN engines	450 A450 A450 A
to DIN standard
All Audi gasoline straight-4 1.8 L AWT engines	220 A220 A220 A
to DIN standard
All Audi diesel V6 2.5 L BAU engines	450 A450 A450 A
to DIN standard
All Audi diesel V6 2.5 L BDH engines	450 A450 A450 A
to DIN standard
All other modifications	380 A380 A380 A
to DIN standard


Battery voltage	12 V12 V12 V
Starter manufacturer	Bosch

expand_moreStarter power


All Audi diesel V6 2.5 L AFB engines	2.68 hp2.68 hp2 kW
All Audi diesel V6 2.5 L AKE engines	2.68 hp2.68 hp2 kW
All Audi diesel V6 2.5 L AKN engines	2.68 hp2.68 hp2 kW
All Audi gasoline V8 4.2 L ARS engines	2.41 hp2.41 hp1.8 kW
All Audi gasoline straight-8 4.2 L ASG engines	2.41 hp2.41 hp1.8 kW
All Audi gasoline V8 4.2 L AWN engines	2.41 hp2.41 hp1.8 kW
All Audi diesel V6 2.5 L BAU engines	2.68 hp2.68 hp2 kW
All Audi diesel V6 2.5 L BDH engines	2.68 hp2.68 hp2 kW
All other modifications	1.88 hp1.88 hp1.4 kW

Specifications of electrical components installed in 2003 Audi A6 Avant Quattro.

Please be noted that all capacities listed here are approximate. Check fluid levels when adding or refilling as recommended in your 2003 Audi A6 Avant Quattro user's manual. Keep in mind that all information here is provided “as is” without any warranty of any kind.

Before doing any DIY service please check your insurance policy and Audi warranty policy for your region. In some regions DIY service may invalidate your warranty.

Maintenance Items

Service Intervals

Conquer your fears and never give up!

DIY car service is not as difficult as it looks like and it might save you thousands of dollars per year. It might be even fun and a good thing to do with your kids on a weekend to teach them how basic machinery works. It's really hard to screw something up and damage your car permanently if you use right tools, follow Audi A6 Avant Quattro service manual and use right parts and fluids in prescribed amounts. Even modern cars stuffed with electronics can be serviced in your garage or even in your driveway. Changing engine oil, brake fluid, ATF, replacing brake pads, and etc. It's all may be done by yourself in a mater of a couple of hours.

Doing basic service for your 2003 Audi A6 Avant Quattro you're not only saving money, but also also improving your technical skills and learning something new.

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Conquer your fears and never give up!

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