Hi John.
Jack the car up drivers side, wheel off, wheel arch liner peeled back, and do the job from there, i use either gates or Continental Contitech belts.
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A ground down aviation spanner.
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Wheel arch liner peeled back and the brake wear + ABS sensors passed through the liner before peeling back.
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You now have full view of the belts and pulleys, use the spanner to take tension of the belt.
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As you are changing them you could just cut them off.
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Feed new belt in from the top and down making sure its over the power steering pulley and water pump pulley.
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weave it round the pulleys and guide wheels etc.
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Once you have it wrapped round those use spanner again on tensioner, and slide the belt over the crankshaft pulley, it may still be tight if so use spanner on crank bolt to turn the pulley and it will pull the belts on for you, i had to leave the job for a while so when i came back to it did not carry on with the photos
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This is what my Auxiliary belt looked like so i was just in time
it is usually the A/C compressor belts that looks like this
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Good luck with the fitting.