Thank you so much.
We lifted the car and did this.
First with engine off, a few bubbles then none.
Then we started the car, the pump made such a terrific grinding sound, I thought the bearings had gone.
The red steering fluid poured out everywhere when we moved the wheel left and right, full of millions of tiny bubbles. Very fizzy!
Eventually, the bubbles stopped coming and the motor stopped grinding. The reservoir fell to half full. When we turn the wheel generally there are no bubbles. If you hard lock it and release you get a fine fizz of bubbles in the reservoir but they disapate immediately. Can't seem to stop this. But steering is working. Is this ok?
The reservoir is very low now. The fluid is red and, was recently replaced. What should I buy to top up, ok to mix it?
Thank you for your advice.
Waylander wrote:
No air locked
Lift the front wheels in the air, let the froth subside
Then wind the steering slowly from lock to lock 3-4 time without the engine running, this should help expel the air keep checking the fluid levels
When you are sure most of the air is out start the engine and let it tick over while winding from lock to lock slowly
This should clear the rest of the air
I have a document from the makes on how to bleed the system, it’s the same for all cars using this type of PAS, mostly BMW, Mercedes and Porsche
Lift the front wheels in the air, let the froth subside
Then wind the steering slowly from lock to lock 3-4 time without the engine running, this should help expel the air keep checking the fluid levels
When you are sure most of the air is out start the engine and let it tick over while winding from lock to lock slowly
This should clear the rest of the air
I have a document from the makes on how to bleed the system, it’s the same for all cars using this type of PAS, mostly BMW, Mercedes and Porsche