Getting ERR01? Can't lock focus? Lens works only at F4.0? Most likely, it's a power diaphragm problem - most common for this lens model. Here is the part you will need to replace - ready for install. No soldering or special tools needed. Check web for instructions.
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Selling Canon EF 24-105mm Lens Aperture Diaphragm unit. Genuine Canon power diaphragm unit + brand new FPC (flex cable). Direct replacement - ready to be installed and replace your broken one.
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Each part is marked (for our safety purposes), checked/tested before shipment. Will be packed carefully into cardboard holder + padded envelope. All regular and Express shipments have tracking numbers. All items are IN STOCK and ready to ship next working day after cleared payment.

PAYMENT:
Payment by Paypal only. It protects us all. 
Payment is expected within 96 hours per eBay policy. If you need additional time, I will work with you, but please send me a message to let me know. If not, the item will be relisted and may no longer be available when you decide to pay.

SHIPPING:
We only ship to PayPal confirmed addresses. Before making your purchase, please make sure your Paypal account has your accurate shipping address. I am unable to make changes to the shipping address after you have made payment. Your item will be shipped within one business day (Monday through Friday) after your payment has cleared. You will receive an email message letting you know I have shipped and provide you with the tracking number. If your payment clears on a Friday, your item may not ship until the next business day. We do not ship items on Saturday, Sunday or holidays. 

Shipping will take 5-7 working days within Europe, 7-14 days worldwide.
Express shipping (TNT, UPS or FedEx) will take 1-3 days within Europe, 2-5 days worldwide.
All shipments have TRACKING NUMBERS.
Please note: All shipments outside UK are shipped with Express mail, but sometimes (especially in Spain, Italy, Russia) deliveries are delayed and arriving few days later as expected! Please, if you have deadline or no time for waiting of the item to arrive - buy locally to avoid any disappointment... 

WE HAVE LARGE STOCK OF CANON CAMERA AND LENS PARTS - ASK!

10D, 20D, 30D, 40D, 50D, 60D, 70D, 5D, 6D, 7D, 1000D, 1100D, 1200D, 100D, 300D, 350D, 400D, 450D, 500D, 550D, 600D, 650D, 700D shutter, frame, PCB, mount, boards, covers, doors, prizm, AF, AE sensors, labels, hinges, screen, TFT, LCD, viewfinder, grip, buttons, parts
17-85mm, 15-85mm, 18-55mm, 17-40mm, 24-70mm, 24-105mm, 50mm, 70-200mm, 100-400mm, 75-300mm, 60mm, 16-35mm, 100mm, 200mm, 18-200mm, 18-135mm, 8-15mm, barrels, USM motors, lens elements, focus rings, image stabilizer, hood, screws, main PCB, etc.