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Turbo and boost pressure

P0299 Turbo boost pressure too low

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P0299 means: Turbo boost pressure too low. The turbo isn't producing as much boost as the engine computer wants. Drive gently and have the car checked soon. The repair usually costs about €80–1800 in Estonia. The most common cause: leaking turbo hose or intercooler. Other possible causes: turbo actuator (VNT or wastegate) is sticking, control solenoid or vacuum hose.

Is it safe to drive?Get it checked soonDrive gently and have the car checked soon.
Typical repair cost€80–1800parts and labour in Estonia

What it means

The turbo isn't producing as much boost as the engine computer wants. The engine lacks power and the car often goes into limp mode. On diesels a leaking turbo hose or a sticking turbo actuator is often to blame.

What could be wrong

  1. 1Leaking turbo hose or intercooler
  2. 2Turbo actuator (VNT or wastegate) is sticking
  3. 3Control solenoid or vacuum hose
  4. 4Turbo is worn

What you can check yourself

Check the turbo hoses and intercooler. An oily hose or loose clamp is a common cause. Best left to a workshop. It needs a diagnostic tool and experience.

How we fix it

  1. We pressure-test for leaks
  2. We check the actuator and solenoid
  3. We replace the hose or repair the turbo

Standard SAE description: Turbo/Super Charger Underboost

Want a definite answer?

Bring the car to our workshop in Estonia for diagnostics. We read the fault codes, test the sensors and tell you what is wrong and what the repair costs before we start any work.

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Questions

What does fault code P0299 mean?

Turbo boost pressure too low. The turbo isn't producing as much boost as the engine computer wants. The engine lacks power and the car often goes into limp mode. On diesels a leaking turbo hose or a sticking turbo actuator is often to blame.

Can I drive with code P0299?

Drive gently and have the car checked soon.

How much does it cost to fix P0299?

Roughly €80–1800 in Estonia. The price depends on exactly what has failed and on the car.

How is P0299 fixed?

We pressure-test for leaks. We check the actuator and solenoid. We replace the hose or repair the turbo.

Related codes

P0234Turbo boost pressure too highP0235Fault in the boost pressure sensor wiringP0236Boost pressure sensor reads wrongP0237Boost pressure sensor signal too lowP0238Boost pressure sensor signal too highP0243Fault in the turbo wastegate solenoidP2263Turbo not delivering the right boost

This information is general and prices are approximate (Estonian workshop rates). The same code can mean different things on different cars. Only an inspection of the car gives a definite answer.

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