Power Steering Squealing
08-23-2018, 02:25 AM
#11
AudiWorld Senior Member
There is a small filter at the bottom of the reservoir. Metal type that I do not believe is changeable. You have to drain the fluid and remove the reservoir to clean it out. Assuming correct Audi fluid was used you can remove with a turkey blaster type suction and reuse if still clean. Mine was making a growling sound and technician thought it was a leaking hose which he replaced. Still growled. Eventually took out the pump. Still growled. Searched this forum and found out about the clogged filter. We replaced the reservoir and it went away. Could have just cleaned the filter and saved all that work and expense. Although the pump and hose was quite years old and maybe ready for new ones.
Could also be a failing hose. The one that goes into the pump is a common old Audi fail.
See if the belt belt has any play in it. Push down between the pulleys where it has the most space between. Belt should only deflect a small amount. You can search the archives for a spec. Also, if a pulley is failing it might be causing the belt to slip. Or if there is fluid or oil that has dropped onto the belt making it slip.
Just figure it it out before it causes you to lose the pump.
Could also be a failing hose. The one that goes into the pump is a common old Audi fail.
See if the belt belt has any play in it. Push down between the pulleys where it has the most space between. Belt should only deflect a small amount. You can search the archives for a spec. Also, if a pulley is failing it might be causing the belt to slip. Or if there is fluid or oil that has dropped onto the belt making it slip.
Just figure it it out before it causes you to lose the pump.
08-23-2018, 08:50 AM
#12
There is a small filter at the bottom of the reservoir. Metal type that I do not believe is changeable. You have to drain the fluid and remove the reservoir to clean it out. Assuming correct Audi fluid was used you can remove with a turkey blaster type suction and reuse if still clean. Mine was making a growling sound and technician thought it was a leaking hose which he replaced. Still growled. Eventually took out the pump. Still growled. Searched this forum and found out about the clogged filter. We replaced the reservoir and it went away. Could have just cleaned the filter and saved all that work and expense. Although the pump and hose was quite years old and maybe ready for new ones.
Could also be a failing hose. The one that goes into the pump is a common old Audi fail.
See if the belt belt has any play in it. Push down between the pulleys where it has the most space between. Belt should only deflect a small amount. You can search the archives for a spec. Also, if a pulley is failing it might be causing the belt to slip. Or if there is fluid or oil that has dropped onto the belt making it slip.
Just figure it it out before it causes you to lose the pump.
Could also be a failing hose. The one that goes into the pump is a common old Audi fail.
See if the belt belt has any play in it. Push down between the pulleys where it has the most space between. Belt should only deflect a small amount. You can search the archives for a spec. Also, if a pulley is failing it might be causing the belt to slip. Or if there is fluid or oil that has dropped onto the belt making it slip.
Just figure it it out before it causes you to lose the pump.
08-23-2018, 08:52 AM
#13
There is a small filter at the bottom of the reservoir. Metal type that I do not believe is changeable. You have to drain the fluid and remove the reservoir to clean it out. Assuming correct Audi fluid was used you can remove with a turkey blaster type suction and reuse if still clean. Mine was making a growling sound and technician thought it was a leaking hose which he replaced. Still growled. Eventually took out the pump. Still growled. Searched this forum and found out about the clogged filter. We replaced the reservoir and it went away. Could have just cleaned the filter and saved all that work and expense. Although the pump and hose was quite years old and maybe ready for new ones.
Could also be a failing hose. The one that goes into the pump is a common old Audi fail.
See if the belt belt has any play in it. Push down between the pulleys where it has the most space between. Belt should only deflect a small amount. You can search the archives for a spec. Also, if a pulley is failing it might be causing the belt to slip. Or if there is fluid or oil that has dropped onto the belt making it slip.
Just figure it it out before it causes you to lose the pump.
Could also be a failing hose. The one that goes into the pump is a common old Audi fail.
See if the belt belt has any play in it. Push down between the pulleys where it has the most space between. Belt should only deflect a small amount. You can search the archives for a spec. Also, if a pulley is failing it might be causing the belt to slip. Or if there is fluid or oil that has dropped onto the belt making it slip.
Just figure it it out before it causes you to lose the pump.
08-23-2018, 09:29 AM
#14
AudiWorld Super User
The power steering fluid is Pentosin CHF 11S. Expensive and no alternates.
08-23-2018, 11:08 AM
#15
08-23-2018, 11:29 AM
#16
AudiWorld Super User
08-26-2018, 05:43 AM
#18
@ uberwagn, Harleyguy and georgeb944,
Thank you for the advice. I found the original OEM WV/Audi part G004000M2 at GBP11.39 for 1 lt and it seems a reasonable price (unless it is the wrong part): https://www.onlinecarparts.co.uk/oen...g004000m2.html
How many litres do I need to flush and refil the entire system? I will follow the steer full left/right, refil, recheck and steer again left/right procedure described in this forum. I will also follw the advice given here and try to clean the filter and check the belt (I hope that I can find it).
By the way, I hear another very weird noise, a whine, that follows the engine revs. It is a different problem from the power steering noise and I posted the question here: https://www.audiworld.com/forums/a6-...noise-2956113/ I would really appreciate anyone who could help me.
Again, thank you for your time and expertise that I greatly appreciate.
Tommaso
Thank you for the advice. I found the original OEM WV/Audi part G004000M2 at GBP11.39 for 1 lt and it seems a reasonable price (unless it is the wrong part): https://www.onlinecarparts.co.uk/oen...g004000m2.html
How many litres do I need to flush and refil the entire system? I will follow the steer full left/right, refil, recheck and steer again left/right procedure described in this forum. I will also follw the advice given here and try to clean the filter and check the belt (I hope that I can find it).
By the way, I hear another very weird noise, a whine, that follows the engine revs. It is a different problem from the power steering noise and I posted the question here: https://www.audiworld.com/forums/a6-...noise-2956113/ I would really appreciate anyone who could help me.
Again, thank you for your time and expertise that I greatly appreciate.
Tommaso
08-26-2018, 06:21 AM
#19
AudiWorld Super User
How many litres do I need to flush and refil the entire system? I will follow the steer full left/right, refil, recheck and steer again left/right procedure described in this forum. I will also follw the advice given here and try to clean the filter and check the belt (I hope that I can find it).
Tommaso
Tommaso