expand_more3.7 quattro with gasoline V8 3.7 L 256 HP at 6000 RPM, 350 N⋅m at 3250 RPM engine (1999.3–2005.1)
At the subframe
73.76 lbf⋅ft73.76 lbf⋅ft100 N⋅m
Replace nuts.
expand_moreOn stub axle
Aluminium stub axle
81.13 lbf⋅ft81.13 lbf⋅ft110 N⋅m
Replace nuts.
Steel stub axle
66.38 lbf⋅ft66.38 lbf⋅ft90 N⋅m
Replace nuts.
expand_moreRear axle suspension
expand_moreRear axle shock absorber
expand_moreBottom
First stage
36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m
Replace screws and nuts.
Second stage
90°90°90°
Top
33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m
Rear axle shock absorber piston rod
19.91 lbf⋅ft19.91 lbf⋅ft27 N⋅m
expand_moreRear axle suspension strut
expand_moreBottom
First stage
51.63 lbf⋅ft51.63 lbf⋅ft70 N⋅m
Screws and nuts must be replaced.
Second stage
90°90°90°
Top
33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m
expand_moreRear axle wheel suspension
expand_moreRear axle carrier
expand_more3.7 quattro with gasoline V8 3.7 L 256 HP at 6000 RPM, 350 N⋅m at 3250 RPM engine (1999.3–2005.1)
expand_moreOn chassis
First stage
81.13 lbf⋅ft81.13 lbf⋅ft110 N⋅m
Replace screws.
Second stage
90°90°90°
expand_moreRear axle drive shaft
expand_moreAt the gearbox
M10
51.63 lbf⋅ft51.63 lbf⋅ft70 N⋅m
M8
29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
expand_moreM14
expand_moreCentral screws
First stage
84.82 lbf⋅ft84.82 lbf⋅ft115 N⋅m
Use new screw.
Second stage
180°180°180°
expand_moreM16
expand_moreCentral screws
First stage
140.14 lbf⋅ft140.14 lbf⋅ft190 N⋅m
Use new screw.
Second stage
180°180°180°
Rear axle stabilizer mounting
18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Rear axle stabilizer support at the axle control arm
47.94 lbf⋅ft47.94 lbf⋅ft65 N⋅m
Rear axle stabilizer support at the stabilizer
36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m
expand_moreRear axle stabilizer support at the stub axle
3.7 quattro with gasoline V8 3.7 L 256 HP at 6000 RPM, 350 N⋅m at 3250 RPM engine (1999.3–2005.1)
40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m
expand_moreTrack control arm lower
expand_moreAt the subframe
First stage
51.63 lbf⋅ft51.63 lbf⋅ft70 N⋅m
Replace screws and nuts.
Second stage
90°90°90°
expand_moreOn stub axle
Aluminium stub axle
70.07 lbf⋅ft70.07 lbf⋅ft95 N⋅m
Replace nuts.
Steel stub axle
73.76 lbf⋅ft73.76 lbf⋅ft100 N⋅m
Replace nuts.
expand_moreTrack control arm upper
expand_more3.7 quattro with gasoline V8 3.7 L 256 HP at 6000 RPM, 350 N⋅m at 3250 RPM engine (1999.3–2005.1)
At the subframe
70.07 lbf⋅ft70.07 lbf⋅ft95 N⋅m
Replace screws and nuts.
expand_moreOn stub axle
First stage
51.63 lbf⋅ft51.63 lbf⋅ft70 N⋅m
Replace screws and nuts.
Second stage
90°90°90°
expand_moreWheel hub wheel bearing
expand_moreM14
First stage
84.82 lbf⋅ft84.82 lbf⋅ft115 N⋅m
Use new screw.
Second stage
180°180°180°
expand_moreM16
First stage
140.14 lbf⋅ft140.14 lbf⋅ft190 N⋅m
Use new screw.
Second stage
180°180°180°
expand_moreWheel bearing unit
First stage
59 lbf⋅ft59 lbf⋅ft80 N⋅m
Replace screws.
Second stage
90°90°90°
expand_moreWheels and tires
expand_moreTire pressure sensors
Torx screws
2.95 lbf⋅ft2.95 lbf⋅ft4 N⋅m
Replace the screw.
Union nuts
2.95 lbf⋅ft2.95 lbf⋅ft4 N⋅m
Wheel attachment
88.51 lbf⋅ft88.51 lbf⋅ft120 N⋅m
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.
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.