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Known fault

Insignia: plastic thermostat housing and water pump

Typically between 80,000 and 180,000 km. It does not show up on every car.

expensive

severity

between 80,000 and 180,000 km

mileage

1

sources

1 source next to the write-up.

The fault

How you spot it

The shared weak point of the Insignia A and B is the cooling circuit: the thermostat housing and some of the pipes are plastic, which can crack under heat cycling. The consequence: coolant loss, a risk of overheating, and a fault code on coolant temperature.

At higher mileage the water pump shows bearing damage: a wet drip trail, running noise. If the coolant runs out, the engine can overheat and be damaged. Replacing the water pump prevents that.

Which model

Who it affects

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

Generations and models

2 generations.

Checklist

Insignia: plastic thermostat housing and water pump

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