What does this code mean?
The monitored boost is insufficient for the calibrated operating condition. This describes a control result, not proof of a failed turbocharger. Air-path restriction, control-system behavior and environmental conditions must be evaluated within the vehicle procedure. The cited GM bulletin documents an ice-related case with possible reduced power.
Sources and interpretation [1] [3]
A code identifies a detected condition, not a part that must automatically be replaced.
Before replacing a part
Record whether the fault occurs only in cold weather and compare desired with actual boost. Review the exact engine's air path and boost-control tests. A cold-weather bulletin is not evidence that every P0299 requires a turbocharger or software replacement.
Manufacturer communications
11Original wording in English
VOLKSWAGEN
Reported code forms P0299
MIL-ON, FAULT P013E IN THE ECM CUSTOMER STATES NOISE FORM THE ENGINE/TURBO FUEL GAUGE NOT READING FULL AFTER TOPPING UP FUEL FUEL LINE RATTLE CLUTCH PEDAL SQUEAL/SQUEAK WHEN OPERATING CLUTCH PEDAL MIL-ON P0299 MIL-ON…
VOLKSWAGEN
Reported code forms P0299
MIL-ON, FAULT P309F OR P309D, NO ELECTRIC DRIVE MODE MIL-ON, FAULT P013E IN THE ECM CUSTOMER STATES NOISE FORM THE ENGINE/TURBO FUEL GAUGE NOT READING FULL AFTER TOPPING UP FUEL FUEL LINE RATTLE CLUTCH PEDAL…
VOLKSWAGEN
Reported code forms P0299
MIL-ON, FAULT P309F OR P309D, NO ELECTRIC DRIVE MODE MIL-ON, FAULT P013E IN THE ECM MIL-ON, FAULT P164B IN ECM CUSTOMER STATES NOISE FORM THE ENGINE/TURBO FUEL GAUGE NOT READING FULL AFTER TOPPING UP FUEL FUEL LINE…
VOLKSWAGEN
Reported code forms P0299
Check Engine Light ON, Reduced Performance or Noise from Turbocharger. DTC P0299 may be stored in ECM.
VOLKSWAGEN
Reported code forms P0299
Use the diagram below to test the N75 Solenoid Valve in the event of a turbocharger fault code such as P0299 or P0234. This applies to Mechanical Injection Style Diesel Engines, Pumpe Duse Style Diesel Engines and the…
VOLKSWAGEN
Reported code forms P0299
Tech Tips (TDI Engine - N75 Solenoid Valve Diagnosis): This document informs with graphical aid the testing of the N75 Solenoid Valve in the event of a turbocharger fault code such as P0299 or P0234. This applies to…
Check vehicle applicability
16A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Volkswagen | PASSAT | 2016 |
| Volkswagen | PASSAT | 2014 |
| Volkswagen | PASSAT | 2013 |
| Volkswagen | PASSAT | 2012 |
| Volkswagen | PASSAT | 2011 |
| Volkswagen | PASSAT | 2010 |
| Volkswagen | PASSAT | 2009 |
| Volkswagen | PASSAT | 2008 |
| Volkswagen | PASSAT | 2007 |
| Volkswagen | PASSAT | 2006 |
| Volkswagen | PASSAT | 2005 |
| Volkswagen | PASSAT | 2004 |
Sources and interpretation
These explanations are editorial summaries of the linked manufacturer material. PDF page numbers count from the first file page. Original publications are in English; translations are reference aids. A cited edition is not a claim that it is the manufacturer's latest instruction.
- Audi TT Quick Reference Specification Book · October 2013 ↗
Audi of America · PDF page(s) 137 ·
- 22-NA-002 · P0299/P0234 during cold or freezing temperatures ↗
General Motors · PDF page(s) 1 ·
- 2024–2025 MY OBD System Operation Summary for Gasoline Engines ↗
Ford Motor Company · PDF page(s) 86, 87 ·
Source check date · 2026-10-27
Can I keep driving?
A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.