Fiat Leon Failing Driveshaft
Fiat Leon Failing Driveshaft
I must admit that this is not a common problem for my mechanics here at pellon Autocentre in Halifax UK. Of course like any other mechanical part, then the problem starts in a small way. This lady driver thought that her wheels needed balancing. Of course that was her first assumption? Hence, a vibration from the front of her car could have been a wheel balance problem. However this was not to be the case?
As a result a month ago then we balanced the cars wheels and also checked out the tyres at the same time. All looked well with the tyres, just the perennial problem of the wheel alignment requiring some adjustment. But the balancing proved to be fine and off she drove into the sunset?
However the vibrating did not stop and a strange low pitch grinding noises could be heard? The lady carried on driving the car and visited her local supermarket. When she started the car and tried to move off then a much louder cranking banging noise came from the drivers side front.
The lady quickly realised that she had a major problem. Consequently, the car would not drive and so she contacted us for advice. As a result we knew that the drive had gone and she was thought to have had wheel balancing problems. These things tied up too be the driveshaft. Because the car is a front wheel drive then the car has two driveshafts, more commonly known as “half shafts“.
Fiat Leon Failing (half shaft)
The half shafts so takes the power from the engine and sends this power to drive the wheels. In this case a front wheel drive car has a drive shaft at each side of the engine. On a rear wheel drive car the drive shaft transmits the engines power to the “differential” which in turn transmits the power to the rear wheels. Of course,there are many different variants to this. But in general the outcome is very much the same.
As a result that the car was un-drivable, we recovered the car back to our garage. So on arrival we drove the car onto a vacant ramp and proceeded to remove the front wheels. So, the half-shaft connects to the brake and wheel assembly via the “constant velocity joint” This is a system of small bearings that allows the wheels to turn when the car has been driven along. This assembly is protected from the elements by a rubber boot. The rubber boot is filled with “high heat resistance” grease.
Subsequently, the problems occur when the rubber boot splits for some reason. This is more common in areas where there are problems with “pot holes“. The damage can be seen in my images. A complete replacement half shaft was the best solution for this model of car and the customer gave permission for the job doing.
It turned out well for us, because that Saturday, then we had a snow fall. This has the effect of keeping our customers tucked up in bed. However we did get busier with tyres sales later on in the morning. All in all a good days work ?