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Volkswagen Trouble Codes and Known Issues

Volkswagen has a huge presence worldwide with the Jetta, Golf, Polo, Passat, Tiguan and Amarok. The turbocharged direct-injection TSI gasoline engines (1.4, 1.8 and 2.0) and the TDI diesels account for the most codes, along with the DSG dual-clutch automatic gearboxes.

Most searched models: Jetta / Vento, Golf, GTI, Passat, Polo, Virtus, Gol, Tiguan, Taos, Atlas, T-Cross and Amarok.

Common problems on Volkswagen vehicles

  • Timing chain and tensioner on first-generation 1.8 and 2.0 TSI (EA888) engines.
  • Oil separator and PCV valve in the valve cover, which cause vacuum leaks.
  • Carbon buildup on the intake valves of direct injection engines.
  • Plastic water pump and thermostat housing, with coolant leaks.
  • Seven-speed dry-clutch DSG gearbox (DQ200): mechatronic unit and clutches.

Tips for diagnosing a Volkswagen

  • If a TSI has a camshaft correlation code and chain rattle on startup, do not put it off: a jumped chain damages the engine.
  • Use oil that meets the specified VW standard (502 00, 504 00 or 508 00 depending on the engine).
  • The DSG mechatronic unit needs a scan tool that can access the transmission module.

Do you have several codes at once? Use the free multi-code diagnosis for Volkswagen: it sorts the codes by priority and shows these make-specific notes. Below are the codes with documented quirks on Volkswagen vehicles.

Make notes are a guide based on well-known common failures. Always confirm with the manufacturer's documentation for your engine and model year.

Codes with notes for Volkswagen

25 codes

CodeMeaningSystemSeverity
P0016 Crankshaft Position Camshaft Position Correlation (Bank 1 Sensor A) Ignition and Misfires High
P0101 Mass or Volume Air Flow Circuit Range/Performance Air Metering and Fuel Delivery Medium
P0106 Manifold Absolute Pressure/Barometric Pressure Circuit Range/Performance Air Metering and Fuel Delivery Medium
P0128 Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature) Emissions Control: Catalyst, EVAP and EGR Medium
P0171 System Too Lean (Bank 1) Air Metering and Fuel Delivery Medium
P0299 Turbo/Supercharger Underboost Air Metering and Fuel Delivery High
P0300 Random/Multiple Cylinder Misfire Detected Ignition and Misfires High
P0401 Exhaust Gas Recirculation Flow Insufficient Detected Emissions Control: Catalyst, EVAP and EGR Medium
P0420 Catalyst System Efficiency Below Threshold (Bank 1) Emissions Control: Catalyst, EVAP and EGR Medium
P0441 Evaporative Emission Control System Incorrect Purge Flow Emissions Control: Catalyst, EVAP and EGR Low
P0700 Transmission Control System Malfunction (Request for MIL Illumination) Automatic Transmission and Traction High
P1102 O2 Sensor Heater Circuit (Bank 1 Sensor 1) Short to Positive (Volkswagen) Air Metering and Fuel Delivery Medium
P1128 Throttle Control Motor Locked (Toyota) Idle, Speed and Auxiliary Systems High
P1129 Electronic Throttle Control System (Toyota) Idle, Speed and Auxiliary Systems High
P1136 Long Term Fuel Trim Additive (Air), Bank 1: System Too Lean (Volkswagen) Air Metering and Fuel Delivery Medium
P1137 Long Term Fuel Trim Additive (Air), Bank 1: System Too Rich (Volkswagen) Air Metering and Fuel Delivery Medium
P1176 Post-Catalyst Oxygen Sensor Correction at Limit (Volkswagen, Bank 1) Air Metering and Fuel Delivery Medium
P1296 Cooling System Malfunction (Volkswagen) Idle, Speed and Auxiliary Systems Medium
P1545 Throttle Position Control Malfunction (Volkswagen) Idle, Speed and Auxiliary Systems High
P1570 Engine Control Module Locked by Immobilizer (Volkswagen) Engine Computer and Output Circuits High
P1602 Low Voltage at Engine Computer Power Supply, Terminal 30 (Volkswagen) Engine Computer and Output Circuits Low
P2008 Intake Manifold Runner Control Circuit/Open (Bank 1) Air Metering and Fuel Delivery Low
P2181 Cooling System Performance Idle, Speed and Auxiliary Systems Medium
P2261 Turbo/Supercharger Bypass Valve Mechanical Fuel Injection and Fuel Pressure Medium
P2279 Intake Air System Leak Air Metering and Fuel Delivery Medium

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