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The Hidden Costs Of Car Ownership

The Hidden Costs Of Car Ownership

As we’ve mentioned before on Motor Blogger, cars used to be simple and many owners would routinely service and fix them at home. Over the years the vehicles we drive have become increasingly complex and the dark arts of home mechanics, have, to a large extent, died out. We rely on manufacturers to make cars that don’t need fixing and, on those rare occasions when they fail, we rely on garages to sort it out. At a price, obviously.

That’s all fine and generally everyone accepts this as the way things are; but have we now reached a stage in the technological advances in auto manufacture where we don’t really know the long term effects and potential issues of those advances? What follows in just one example of what we mean.

Car engine flywheels function on one of the simplest principles in the world of physics: objects in motion tend to stay in motion. The flywheel helps an engine to run smoother and last longer. Without it the vibrations from the internal combustion would drive us all mad. That’s the short version. Historically, all being well, the flywheel would last the lifetime of the car.

Thanks to the modern rise of diesel and some petrol engines that are extremely frugal yet very powerful, the basic flywheel has had a bit of a make-over and become a dual mass flywheel. Car manufacturers are wringing the maximum amount of performance from the minimum amount of fuel. This in turn means that the force of the ‘explosions’ in the vehicles’ cylinders has increased necessitating more complex flywheels to cope.

Dual mass flywheels, as the name suggests, means a conjoined pair – one attached to the crank and the other to the clutch. They are joined by a series of springs to act as cushioning and it is these which weaken over time. The result of this is that many dual mass flywheels may need replacing – unlike their simpler predecessors – somewhere around the fifty to seventy thousand mile mark. This is an additional cost brought to you by modern technology. It could mean that the money you save on fuel will be needed to pay for flywheel replacement.

The only good thing about it is that dual mass flywheels tend to fail around the same time as the clutch. As they work in conjunction with one another then it is as well to have the flywheel changed when your clutch goes. On a big diesel Audi, as an example, the cost of replacement of the flywheel alone would be something of the order of £1000, give or take.

Clearly, most technology is tried and tested before it appears on our cars but as things get more and more complex – without wishing to sound like alarmist doom-mongers – we simply cannot know what the long-term outcomes will be. All we can do is wait and see.

This post was written by:

- who has written 474 posts on Motor Blogger.

Geoff is a freelance writer and photographer.

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One Response to “The Hidden Costs Of Car Ownership”

  1. Corey Butler says:

    I did not know you could resurface the dual mass flywheels on the lathe. Was told by AccuTurn rep that it could not be done and have a truely flat even surface because of the construction of the fly wheel. I have turned single mass fly wheels a bunch of times with no problems but never tried the dual. That does not make me right if I was taught wrong… Would like to have input from others on this. Untill then I’ll say no.

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