expand_moreAir-conditioning compressor pressure line
M6
7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
M8
18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
expand_moreAlternator
All other modifications
16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m
expand_moreServo pump pulley
All other modifications
16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m
expand_moreServo steering pump
All other modifications
16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m
Vacuum pump
6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m
expand_moreCarburetion
expand_moreHigh-pressure pump drive wheel
Central screws
55.32 lbf⋅ft55.32 lbf⋅ft75 N⋅m
expand_moreHigh-pressure pump pulley
Central nuts
51.63 lbf⋅ft51.63 lbf⋅ft70 N⋅m
Injection hoses
18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Injection nozzle (injector)
7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
expand_moreInjection pump
M6
6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m
M8
16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m
expand_moreCooling system
expand_moreCoolant pump
All other modifications
6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m
expand_moreCoolant pump pulley
expand_moreCylinder head
expand_moreCamshaft bearing
All other modifications
7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
First tighten bearing covers 2 and 4 alternately and in steps
expand_moreCylinder head screws
expand_moreAll other modifications
First stage
29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
Use new screws.
Second stage
90°90°90°
Third stage
90°90°90°
expand_moreValve cover
All other modifications
6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m
cross-wise from inside to outside
expand_moreEngine block
expand_moreBalance shaft gear wheel
expand_moreConnecting rod bearing
First stage
22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
Replace and lightly oil the screw.
Second stage
90°90°90°
expand_moreFlywheel
expand_moreAll other modifications
expand_more22,5 mm screws
First stage
44.25 lbf⋅ft44.25 lbf⋅ft60 N⋅m
Replace screws.
Second stage
90°90°90°
expand_more35 mm screws
First stage
44.25 lbf⋅ft44.25 lbf⋅ft60 N⋅m
Replace screws.
Second stage
180°180°180°
expand_more43 mm screws
First stage
44.25 lbf⋅ft44.25 lbf⋅ft60 N⋅m
Replace screws.
Second stage
180°180°180°
expand_moreMain bearing
expand_moreAll other modifications
First stage
22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
Tighten the screws cross-wise from inside to outside.
Second stage
36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m
Use new screws.
Third stage
90°90°90°
expand_moreEngine control
expand_moreBottom part of the control unit housing
expand_moreCamshaft timing chain tensioner
expand_moreControl drive chain tensioner
expand_moreControl drive chain tensioning rail
expand_moreControl drive sprocket wheel
expand_moreControl drive timing chain slip rail
High pressure pump belt deflection pulley
16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m
Tension rail bearing screws
8.85 lbf⋅ft8.85 lbf⋅ft12 N⋅m
expand_moreTiming case cover
M6
6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m
M8
16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m
expand_moreTiming case cover first cylinder row
expand_moreTiming case cover second cylinder row
Toothed belt guard
6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m
Toothed belt guard, rear
Toothed belt guard at the bottom
7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Use screw-locking compound.
expand_moreEngine lubrication
expand_moreOil cooler
All other modifications
6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m
expand_moreOil drain plug
All other modifications
22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
expand_moreOil filter housing
expand_moreOil pump chain wheel
All other modifications
45.73 lbf⋅ft45.73 lbf⋅ft62 N⋅m
Property class 10.9
expand_moreOil sump
expand_moreAll other modifications
expand_moreAt the gearbox
Oil sump top part
33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m
expand_moreOil sump lower part
First stage
5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
Replace screws.
Second stage
90°90°90°
Gradually tighten screws crosswise.
expand_moreOn the engine block
Oil sump top part
11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
Gradually tighten screws crosswise.
expand_moreEngine management
Charge air pressure sensor
3.69 lbf⋅ft3.69 lbf⋅ft5 N⋅m
Crankshaft sensor
7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Glow plugs
12.54 lbf⋅ft12.54 lbf⋅ft17 N⋅m
Lambda sensor
40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m
expand_moreEngine mounting
Engine mounting
16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m
expand_moreTorque arm
expand_moreAll other modifications
M10
29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
M8
20.65 lbf⋅ft20.65 lbf⋅ft28 N⋅m
expand_moreExhaust system
expand_moreExhaust manifold
All other modifications
18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Replace the nuts and use fitting paste
Exhaust pipe
18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Replace nuts.
Exhaust pipe bracket
18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
expand_moreIgnition system
Spark plugs
22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
expand_moreStart system
expand_moreStarter
All other modifications
47.94 lbf⋅ft47.94 lbf⋅ft65 N⋅m
Property class 10.9
Please be noted that all capacities listed here are approximate. Check fluid levels when adding or refilling as recommended in your 2002 Audi A4 Cabriolet 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 A4 Cabriolet 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 2002 Audi A4 Cabriolet Quattro you're not only saving money, but also also improving your technical skills and learning something new.