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Petrol or diesel – which is best?

Skoda Yeti problems

Haynes' World is a regular feature that takes a look at what the staff at Haynes are doing with their cars, bikes and other vehicles. This time, Euan’s Skoda Yeti has started to make an odd noise – sometimes.

Car: Skoda Yeti

Owner: Euan Doig

Skoda Yeti sausages

Did I buy the wrong car?

I love my Skoda Yeti.

It’s a proper Swiss army knife of a car, because it has the ability to work in any given situation. It’s even served as a cooking area (see above), and with the winter tyres I put on it a couple of months ago (see below), it’s been unstoppable.

However, I can’t shake an annoying feeling I might have bought the wrong one. You see, when I was looking for a car to replace my Honda CR-Z (which got written off while parked outside my house), I decided that I wasn’t going to be doing enough miles to make a diesel pay for itself, so I bought a Yeti TSI, with the 1.4-litre turbo petrol engine. Ace.

It’s a sweet motor that offers an ideal mixture of performance and economy for the lower-mileage user. And the car had just 27,000 miles on it when I bought it. Great.

Skoda Yeti winter tyres

Would diesel have been cheaper than petrol?

But then life changed, because elderly relatives became seemingly intent on falling over and injuring themselves.

This went way beyond mere attention seeking (I’m kidding), but necessitated frequent jaunts north to the homeland of heather and haggis.

So, in just 18 months, the mileage has climbed to 54,000. Oof. This is why I now suspect that a diesel might have been the more economical choice – and that’s before we get to the cost of changing the oil every 5000 miles. I do this in a bid to keep the engine as healthy as possible, but I’m starting to wonder if all the effort has been in vain.

Skoda Yeti 1.4 TSI engine

Odd noises from Skoda engine

You see, my car’s engine is the CAXA engine, and it’s started to make a weird whirring noise when cold. This noise doesn’t happen at idle, and only appears when I’m accelerating, and then it disappears once the oil is fully warmed up.

I can’t figure out what it could be. I’m worried that it could be the timing chain or tensioner. Could it be a camshaft issue? Or, as Haynes’ guru Martynn Randall suggested in this blog about his Z4, could it be tappets?

One thing’s for sure, I’m going to have to do some investigating, so here’s hoping the rain stays off for a bit.

Yeti in Scotland