Vauxhall 1.2 PureTech wet belt replacement

Since Vauxhall joined the Stellantis group, many of its petrol cars have used the 1.2 PureTech three-cylinder engine shared with Peugeot and Citroen — the Corsa F from 2019, the Mokka from 2021, the Crossland, Grandland and the latest Astra. Like the Ford EcoBoost, the PureTech's timing belt runs in engine oil, and it has a well-documented habit of breaking down early.

When the belt degrades it sheds rubbery flakes into the oil. Those flakes block the oil pump pickup, which can bring on the oil pressure light, and on these engines they can also block the strainer for the brake vacuum pump. That is why some PureTech owners first notice a hard, heavy brake pedal rather than an engine warning. Both are reasons to stop and have the car checked, not to keep driving.

Stellantis has shortened the recommended belt interval on many PureTech engines, and oil quality plays a big part in how long the belt survives. Cars that do short local runs — the school run from West Heath or a daily hop into Selly Oak — never get the oil fully hot, so fuel and moisture build up in it and the belt suffers. Higher-than-normal oil consumption on these engines is another sign worth mentioning when you book.

We start with an inspection and a measurement of the belt. If it is within limits, you drive away with a note of its condition. If it has swollen, cracked or started to shed, we replace the belt, tensioner and pickup, clean the sump and check the vacuum pump strainer so the brakes work as they should. We explain every step and price before starting.