How to bleed A4 B6 power steering system

[A4B6Cab]

I assumed it was a simple 'jack it up and full lock left to right several times' but someone at work seems to think theres a specific rule to bleed air from the system (2003 3.0 V6 petrol engine, non quattro) that involves starting and stopping the car every few seconds or something? And also about filling the reservoir above the fill level to the top of the 'MAX' wording (top of the 'M')

Any ideas please guys?

[arman123]

this is what ive found




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A4 Mk2



Running gear, front-wheel drive and four-wheel drive (http://workshop-manuals.com/audi/a4_mk2/running_gear_front-wheel_drive_and_four-wheel_drive/technical_data/technical_data/) > Steering (http://workshop-manuals.com/audi/a4_mk2/running_gear_front-wheel_drive_and_four-wheel_drive/steering/steering_wheel_with_airbag/) > Checking fluid level, bleeding steering system and checking for leaks (http://workshop-manuals.com/audi/a4_mk2/running_gear_front-wheel_drive_and_four-wheel_drive/steering/checking_fluid_level_bleeding_steering_system_and_ checking_for_leaks/) > Bleeding steering system after repairs







Bleeding steering system after repairs




Different bleeding procedures are required after repairs to the steering system, depending on which components have been removed or renewed.




After replacement of the entire steering system or steering box:




–
Check hydraulic fluid level and top up if necessary.




–
Raise vehicle until front wheels are free.




–
Start engine briefly (max. 2 seconds)




Pump must not draw in air; steering wheel must not be turned.




Wait approx. 30 seconds each time before starting engine again.




–
Check hydraulic fluid level and top up if necessary.




–
Keep repeating this procedure until fluid level remains constant.




–
With engine switched off, turn steering wheel 10 times from lock to lock.




–
Check hydraulic fluid level and top up if necessary.




–
Start engine.




–
Turn steering wheel 10 times from lock to lock.




–
Check hydraulic fluid level and top up if necessary.




Any air remaining in the steering system will dissipate by itself when the vehicle has been driven 10 … 20 km.




When other steering components (except steering box) have been removed or renewed (e.g. pump, hoses, etc.):




–
Check hydraulic fluid level and top up if necessary.




–
Start engine briefly (max. 2 seconds)




Pump must not draw in air; steering wheel must not be turned.




Wait approx. 30 seconds each time before starting engine again.




–
Check hydraulic fluid level and top up if necessary.




–
Keep repeating this procedure until fluid level remains constant.




–
Start engine and allow to run for 2 - 3 minutes; do not turn the steering.




Any air remaining in the steering system will dissipate by itself when the vehicle has been driven 10 … 20 km.








Running gear, front-wheel drive and four-wheel drive (http://workshop-manuals.com/audi/a4_mk2/running_gear_front-wheel_drive_and_four-wheel_drive/technical_data/technical_data/) > Steering (http://workshop-manuals.com/audi/a4_mk2/running_gear_front-wheel_drive_and_four-wheel_drive/steering/steering_wheel_with_airbag/) > Checking fluid level, bleeding steering system and checking for leaks (http://workshop-manuals.com/audi/a4_mk2/running_gear_front-wheel_drive_and_four-wheel_drive/steering/checking_fluid_level_bleeding_steering_system_and_ checking_for_leaks/) > Bleeding steering system after repairs





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A4 Mk2

[Crasher]

That is actually a bit over the top but followed it will work well.