For 1999 A6 Quattro C5 Audi recommends to use: H3 12V 55W PK22s, H7 12V 55W PX26d Longlife, WY5W 12V 5W W2.1x9.5d yellow, C5W 12V 5W SV8.5 (11x35), W5W 12V 5W W2.1x9.5d, T4W 12V 4W BA9s, W2.3W 12V 2.3W W2x4.6d, P21W 12V 21W BA15s, P21, PY21W 12V 21W BAU15s yellow, PY21W 12V 21W BAU15s interference, H1 12V 55W P14.5s, D2S 85V 35W P32d-2, W5W 12V 5W W2.1x9.5d Longlife, and W5W 12V 5W W2.1x9.5d blue. 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 H3 12V 55W PK22s
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
With halogen headlamp H1 12V 55W P14.5s
Xenon headlights D2S 85V 35W P32d-2
expand_moreParking light
Variant 1 W5W 12V 5W W2.1x9.5d Longlife
Variant 2 W5W 12V 5W W2.1x9.5d blue
Side direction indicator WY5W 12V 5W W2.1x9.5d yellow
expand_moreInternal light sources
Boot light C5W 12V 5W SV8.5 (11x35)
Door safety light W5W 12V 5W W2.1x9.5d
Entry light W5W 12V 5W W2.1x9.5d
Footwell light C5W 12V 5W SV8.5 (11x35)
Glove compartment light C5W 12V 5W SV8.5 (11x35)
Reading light T4W 12V 4W BA9s
expand_moreRear light sources
Auxiliary brake light W2.3W 12V 2.3W W2x4.6d
Back-up lamp P21W 12V 21W BA15s
License plate light C5W 12V 5W SV8.5 (11x35)
Rear direction indicator P21W 12V 21W BA15s
Rear fog lamp P21W 12V 21W BA15s
Stop lamp P21
Tail 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 1999 Audi A6 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.

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 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 1999 Audi A6 Quattro you're not only saving money, but also also improving your technical skills and learning something new.

Audi A6 Quattro C5 model years

Units:
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