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Engine code

B16SHT engine faults.

Listed as: 1.6 Turbo, 1.6 Turbo (EDIT) ecoFLEX, 1.6 T. The faults belong to this engine code. They do not apply to every car with that name.

petrol

fuel

1598 cc

displacement

110–147 kW (150–200 HP)

power

1 fault write-ups. Important.

Before you buy

Known faults

1 important faults

1.6 SIDI Turbo (A16XHT / A16SHT): timing chain

critical

The Insignia and Astra 1.6 litre direct injection turbo petrol engines (A16XHT, A16SHT, later B16SHT / D16SHT) run a chain driven valvetrain unlike the belt driven A16LET 1.6 Turbo.

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On some versions the chain can stretch at around 100,000 km. It rattles metallically on a cold start until the hydraulic tensioner builds pressure, and it can log a crankshaft to camshaft correlation fault code of the P0016 kind. If the rattle is left alone, the chain can jump and the engine is badly damaged inside.

Do not confuse it with the A16LET, which has a timing belt, or the A14NET 1.4 Turbo, which also has a chain but is a different engine family.

between 90,000 and 160,000 km

What to check

  • Check the engine code: A16XHT / A16SHT / B16SHT / D16SHT is the SIDI chain; A16LET is the timing belt
  • Insist on a cold start: a metallic rattle from the timing side is suspect
  • Ask for a fault code read: P0016 and timing deviation codes
2 more steps in the write-up

Engine code

Factory data

Factory data

Engine family
—
Fuel
petrol
Displacement
1598 cc
Power
110–147 kW (150–200 HP)
Production
—

Generations

Which models it is fitted to

2 generations.

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