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On average, how often do engines, gearboxes and diffs, among other things, fail?

Asked by Andrew

I have been given a car warranty quote that covers the engine, gearbox and diff among other things on my 2021 Suzuki Swift. On average, how often do these fail?

Answered by CarsGuide

29 Aug 2022 David Morley

In a very broad sense, these components should last the life of the vehicle. Certainly, by the time you need to replace any of these major components, the cost of doing so is likely to be more than the value of the whole vehicle. That's often when cars get scrapped.

I'll take a stab in the dark and suggest that the warranty you're being offered is from a car dealer attempting to sell you the vehicle and the warranty as an up-sell. So here's the bottom line: With very, very few exceptions, these aftermarket warranties are not worth the paper they're printed on. The fine-print will exclude just about any fault or problem that is likely to occur, meaning that real world problems won't be covered.

In any case, a 2021 Suzuki Swift will still be covered by Suzuki's factory warranty which will cover problems with these components. Why would you need two warranties to cover the same components? Or is the dealer suggesting that Suzuki's factory warranty is not sufficient? Suzuki might be interested to hear that.

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