Will Mercedes-Benz contribute to the cost of repairing my 2006 ML320's steering rack?

My 2006 Mercedes-Benz ML320 Sport has developed a leak of power steering fluid from the steering rack after four years. They have said the steering rack should be replaced at a cost of £3000 plus labour,...

ML from hell

Are you able to help me with an ongoing problem that my daughter has with her ML 320CDI. She purchased the car new from Mercedes Salisbury in July 2006 and since then the car has been back in the Mercedes...