48-22 steering fluid check & bleeding
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48-22
Hydraulic fluid level, checking; steering system, bleeding and checking for leaks
Hydraulic fluid level, checking
- With engine switched off, bring front wheels to straight-ahead position.
Note:
The cap must be screwed on fully to obtain an accurate fluid level reading.
- Remove cap.
- Wipe dipstick using clean cloth.
- Re-install cap hand tight and remove again.
Page 1 of 5Hydraulic fluid level, checking; steering system, bleeding and checking for leaks
11/20/2002http://127.0.0.1:8080/audi/servlet/Display?action=Goto&type=repair&id=AUDI.B5.SU01.48.5
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48-23
Checking with fluid cold
Checking with fluid at operating temperature
Notes:
Fluid level must be in area of "MIN." marking (up to 2 mm (0.08 in.) above or below marking)
Operating temperature: above approx. 50 C (122 F)
Fluid level must be between "MIN." and "MAX." markings
If there is too much fluid in the reservoir, fluid must be extracted.
If there is not enough fluid, it is not sufficient to just top off the fluid; the hydraulic system must also be checked for leaks page 48-25 .
Do not re-use hydraulic fluid that has been removed.
Page 2 of 5Hydraulic fluid level, checking; steering system, bleeding and checking for leaks
11/20/2002http://127.0.0.1:8080/audi/servlet/Display?action=Goto&type=repair&id=AUDI.B5.SU01.48.5
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48-24
Steering system, bleeding
- Check hydraulic fluid level and top off if necessary page 48-22 .
- Raise vehicle until front wheels can move freely.
- With engine switched off, turn steering wheel from lock-to-lock 10 times.
- Check hydraulic fluid level and top off if necessary page 48-22 .
- Lower vehicle.
- Start engine.
- Turn steering wheel from lock-to-lock 10 times.
- Check hydraulic fluid level and top off if necessary page 48-22 .
Any remaining air in steering system will dissipate while driving over the next 10-20 km (6-12 miles).
Page 3 of 5Hydraulic fluid level, checking; steering system, bleeding and checking for leaks
11/20/2002http://127.0.0.1:8080/audi/servlet/Display?action=Goto&type=repair&id=AUDI.B5.SU01.48.5
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48-25
Steering system, checking for leaks
- Start engine.
- Turn steering from lock-to-lock and hold briefly.
This produces maximum possible pressure
CAUTION!
To avoid damaging the pump, do not allow the engine to run for more than 10 seconds (with steering at lock) when carrying out this test.
In this position the following components must be checked for leaks:
Pinion seal on steering gear valve housing
All line connections
Rack seals
- Check rack seals with boots pushed back:
- Open boot clamp.
Page 4 of 5Hydraulic fluid level, checking; steering system, bleeding and checking for leaks
11/20/2002http://127.0.0.1:8080/audi/servlet/Display?action=Goto&type=repair&id=AUDI.B5.SU01.48.5
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- Push boot back.
Steering gear must be replaced if fluid is visible in steering gear housing and/or in boot
Page 5 of 5Hydraulic fluid level, checking; steering system, bleeding and checking for leaks
11/20/2002http://127.0.0.1:8080/audi/servlet/Display?action=Goto&type=repair&id=AUDI.B5.SU01.48.5
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