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Known fault

1.4 Twinport (Z14XEL / Z14XEP): timing chain

Typically between 120,000 and 220,000 km. It does not show up on every car.

expensive

severity

between 120,000 and 220,000 km

mileage

3

sources

3 sources next to the write-up.

The fault

How you spot it

The 1.4 naturally aspirated petrol engines of the Astra H (Z14XEL, Z14XEP) run a chain driven valvetrain unlike the 1.6 Twinport/XER family, which is belt driven.

The maker describes the chain as maintenance free, but it can rattle metallically on a cold start, it can log a timing deviation fault code, and with neglected oil changes the chain and the tensioner wear. The replacement is at the front of the engine, and the gearbox does not have to come out. If the chain jumps, the engine is badly damaged inside.

Do not confuse it with the 1.6: there the question is the timing belt interval, here it is chain noise.

Which model

Who it affects

The card opens the generation, the engine or the transmission.

Engines and transmissions

Checklist

1.4 Twinport (Z14XEL / Z14XEP): timing chain

What you would check for this fault. Take it to the car.

Before you buy

Checklist

What you tick stays on this device only.

vinkodex.com · Before you buy it, see what can go wrong.

Sources

How we know

Information, not an expert opinion

We write the descriptions, and we put the source next to them. A person reviews them before they go out. They are still information, not a technical expert opinion.

  • A fault on the list does not mean the car you are looking at has it.
  • A fault missing from the list does not mean the model is fault-free. Write-ups are made model by model. Not all of them are done.
  • You decide whether to buy. This is no substitute for an inspection. That needs a workshop and a history check.
Details in the terms