p0299
Moderate
Jaguar · Sedans & Sports Cars
Turbocharger/Supercharger Underboost Condition
Quick Answer
Error code P0299 on your Jaguar Sedans & Sports Cars means: Turbocharger/Supercharger Underboost Condition. This is usually fixable — see the step-by-step guide below.
Affected Models
Likely Causes
How to Fix It
1
Check vacuum hoses
2
Test boost pressure sensor
3
Inspect turbocharger condition
4
Check intercooler
5
Verify intake valves clean
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
Parts You May Need
Boost pressure sensor
Vacuum hoses
Turbocharger
Intercooler
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