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Hyundai i20 recurring brake problem

Two weeks after picking up my 2012 Hyundai i20 in January I experienced a serious braking problem when the car would struggle to maintain speed, initially on slight inclines. The dealer couldn't find any faults and said they lubricated them. In February I was nearly cleaned up by a semi when the car started to decelerate from 100 km/h. Also in February the brakes locked on when I turned off the highway and I had to get towed to the dealer. They mentioned calipers/lubrication and a switch and said it was fixed. Three days later it happened again, this time Hyundai told them to replace the inlet manifold. But it happened again in May, this time the fix was to remove the brake master cylinder and measure the brake rod length. It was found to be out of spec 0.7 mm, and was adjusted back in to spec. I have complained to Hyundai direct as I reckon six attempts to fix a serious brake problem was too many and they should have a moral obligation to replace the car. Hyundai's response was that they will replace the master cylinder, and to quote their Assistant Manager Customer Care, "we are confident this will fix the problem". I don't share his confidence. They seem to be clutching at straws. At what point is the company obliged to replace a defective vehicle, especially where the defect occurs unexpectedly and could have disastrous consequences for the driver and other road users?

The company has an obligation to fix the car, not to replace it. While it must be frustrating to experience what you have been through it does seem as though the company is trying to fix the problem. I would give them the car back and tell them you don't want it returned until it is fixed, and in the meantime ask them for the loan of a car while yours is off the road. If that fails then you could ask for a new car.

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