mine had the bottom right hand portion broken off when my engine failed (AXX engine 87k) im not 100% sure what caused the failure but i had a snapped exhaust cam aswell, cost me around £900 to put right (replacement head, timing belt kit, cam chain & tensioner, 4x injector rebuild kits, some bolts, gaskets and broken dipstick tube and evap hose, also had to buy the cam locking kit and a polydrive bit for the head bolts adjuster bolt) did all the work myself so no labour charges