For 2004 A4 B6 Audi recommends to use: H11 12V 55W PGJ19-2, H7 12V 55W PX26d Longlife, WY5W 12V 5W W2.1x9.5d yellow, W5W 12V 5W W2.1x9.5d, C10W 12V 10W SV8.5-8, P21W 12V 21W BA15s, C5W 12V 5W SV8.5 (11x35), PY21W 12V 21W BAU15s yellow, P21, PY21W 12V 21W BAU15s interference, D1S 85V 35W PK32d-2, D2S 85V 35W P32d-2, H6W 12V 6W BAX9s, W5W 12V 5W W2.1x9.5d Longlife, R5W 12V 5W BA15s, and W3W 12V 3W W2.1x9.5d. To select the right part or fluid see the table below.
in your garage to make future searches easy.
Condition
Value
expand_moreFront light sources
Fog lamps
H11 12V 55W PGJ19-2
expand_moreFront direction indicator
Variant 1
PY21W 12V 21W BAU15s yellow
Variant 2
PY21W 12V 21W BAU15s interference
High beam
H7 12V 55W PX26d Longlife
expand_moreLow beam
S-Line model
D1S 85V 35W PK32d-2
With bi-xenon
D1S 85V 35W PK32d-2
With halogen headlamp
H7 12V 55W PX26d Longlife
Xenon headlights
D2S 85V 35W P32d-2
expand_moreParking light
S-Line model
H6W 12V 6W BAX9s
With bi-xenon
H6W 12V 6W BAX9s
With halogen headlamp
W5W 12V 5W W2.1x9.5d Longlife
Xenon headlights
H6W 12V 6W BAX9s
Side direction indicator
WY5W 12V 5W W2.1x9.5d yellow
expand_moreSide light
3.0 with gasoline V6 3.0 L 215 HP engine (2001.4–2004.12)
R5W 12V 5W BA15s
expand_moreInternal light sources
expand_moreBoot light
In tailgate
W5W 12V 5W W2.1x9.5d
Otherwise
W3W 12V 3W W2.1x9.5d
Door light
W5W 12V 5W W2.1x9.5d
Door safety light
W5W 12V 5W W2.1x9.5d
Entry light
W5W 12V 5W W2.1x9.5d
Footwell light
W5W 12V 5W W2.1x9.5d
expand_moreGlove compartment light
With cooled glove compartment.
W3W 12V 3W W2.1x9.5d
Otherwise
W5W 12V 5W W2.1x9.5d
Interior light
C10W 12V 10W SV8.5-8
Reading light
W5W 12V 5W W2.1x9.5d
expand_moreRear light sources
Back-up lamp
P21W 12V 21W BA15s
License plate light
C5W 12V 5W SV8.5 (11x35)
Rear direction indicator
PY21W 12V 21W BAU15s yellow
Rear fog lamp
P21W 12V 21W BA15s
Stop lamp
P21
expand_moreTail light
Taillight
R5W 12V 5W BA15s
Taillight brake light
P21
Servicing your Audi use only recommended parts, oils, fluids and lubricants.
Please be noted that all capacities listed here are approximate. Check fluid levels when adding or refilling as recommended in your 2004 Audi A4 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.
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 A4 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 2004 Audi A4 you're not only saving money, but also also improving your technical skills and learning something new.
2004 Audi A4 generations
In 2004 Audi offered 2 generations of the A4. Maintenance items may vary in different generations. Be sure that you are looking at the rigt modification.