How a Volkswagen Polo Steering Pump Is Replaced
Steering heavy or whining noise on the lock of the steering wheel. Hydraulic pump failure on your Polo. The job of replacing a steering pump on a Volkswagen is made clear here to help you in your dealings with mechanics and garages.
Depressurising and Draining the Old Fluid
When you open up the pump for repair or replacement the first thing to do is to release any remaining pressure from the system. Once you’ve done that you should then drain the old fluid from the system. Note that old fluid should never be used in a new pump as it can cause serious damage to the components within the pump.
Removing the Drive Belt and Pump
First the drive belt is removed from the engine. Then the two bolts are released and the pump, complete with high-pressure hose and return hose, is lifted free. Both hoses are inspected for signs of wear or cracking.
Fitting and Aligning the New Pump
The new Volkswagen Polo Steering Pump is mounted and the connections for the high-pressure hose as well as the return hose are fitted with new seals where necessary. Special attention has to be paid when setting the belt tension: if it is too slack, the pump is not being used efficiently. However, if the belt is too tight, it can put excessive strain on the bearings.
Refilling and Bleeding the System
Fresh hydraulic fluid is added to the system and the air is bled out to prevent any spongy feeling when steering. For more information on the workings of hydraulic power steering systems see the AA’s guide to how they work.
Final Checks Before the Car Goes Back
Start the engine and slowly go from lock to lock several times. Check all the hose connections for any signs of leakage. Also listen for any unusual noises. Refill the power steering fluid as required and the car is now ready to be returned to you.
An apparently straightforward repair job to replace a Volkswagen Polo steering pump but needs to be done in the correct order so as not to cause damage to the new pump.
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