Volkswagen Diagnostic Trouble Codes
OBD2 fault codes seen on Volkswagen vehicles, with what each code means, its typical repair cost range, and notes on specific Volkswagen models.
Electrical
"A" Camshaft Position Actuator Circuit (Bank 1)
Volkswagen Golf • 2006-2024
The EA888 engine uses a camshaft adjuster solenoid that can fail due to oil contamination. Oil condi...
Intake Camshaft Position - Timing Over-Retarded (Bank 1)
VW Golf 2.0 TSI (EA888) • 2008-2014
Gen 1 and Gen 2 EA888 engines have a well-known timing chain tensioner failure. P0012 usually appear...
Throttle Position Sensor/Switch A Circuit Range/Performance Problem
Volkswagen Golf • 2004-2016 (Mk5/Mk6/Mk7, 1.4 TSI EA111/EA211, 2.0 TDI)
Carbon build-up on the throttle plate from crankcase (PCV) oil vapour is a common trigger on the 1.4...
Throttle/Pedal Position Sensor/Switch A Circuit Low Input
Volkswagen Golf • 2005-2015 (Mk5/Mk6, 1.4 TSI CAVA/CAXA and 2.0 TDI CBEA/CJAA)
The EPC light comes on with P0122 on these Golfs. On 1.4 TSI engines the throttle body actuator moto...
Throttle/Pedal Position Sensor/Switch A Circuit High Input
VW Golf • 2004-2015 (Mk5/Mk6)
1.4 TSI (CAXA/CAVD) and 2.0 TDI (CBEA/CJAA) throttle body connectors can corrode where the harness r...
Engine Oil Temperature Sensor
Volkswagen Golf • 2005-2024
Many Golf engines take their oil temperature from the combined oil level and oil temperature sensor ...
Engine Oil Temperature Sensor Range/Performance
Volkswagen Golf • 2005-2024
VW uses the G266 oil level and temperature sensor, threaded into the oil pan from below, so one part...
Engine Overspeed Condition
Volkswagen Golf • 2005-2024
The DSG dual-clutch transmission can occasionally cause P0219 during rapid downshifts if the mechatr...
Knock Sensor 1 Circuit Malfunction (Bank 1 or Single Sensor)
Volkswagen Golf • 2005-2014
2.0 TFSI (BPY, CCTA) and 1.4 TSI engines. The 2.0 has two knock sensors; P0325 (VAG fault 16709) ref...
Knock Sensor 1 Circuit Low Input (Bank 1 or Single Sensor)
Volkswagen Golf • 2005-2024
The Mk5 and Mk6 Golf with TSI/TFSI EA888 engines can suffer knock sensor wiring chafe. The harness r...
Glow Plug / Heater Circuit "A" Malfunction
Volkswagen Golf TDI • 2005-2021
The Golf TDI commonly sets P0380 from a failed glow plug control module or aged plugs around 120,000...
Vehicle Speed Sensor "A" Malfunction
Volkswagen Golf • 2003-2024
The Golf uses a Hall-effect speed sensor on the transmission. On DSG-equipped models, the sensor is ...
Vehicle Speed Sensor "A" Range/Performance
Volkswagen Golf • 2003-2024
On Mk5 and Mk6 Golfs, rear ABS sensor wiring can chafe where the harness runs along the trailing arm...
Vehicle Speed Sensor "A" Circuit Low Input
Volkswagen Golf • 2003-2024
Mk5 and Mk6 Golf are prone to rear ABS sensor harness chafing along the trailing arm. Once the insul...
Vehicle Speed Sensor "A" Intermittent/Erratic/High
Volkswagen Golf • 2003-2024
Mk5 and Mk6 Golf often log P0503 from rear ABS sensor wiring that has chafed but not yet shorted to ...
Brake Switch "A"/"B" Correlation
Volkswagen Golf • 2003-2024
The brake light switch is the usual P0504 part on the Mk6 and Mk7 Golf, and it is a cheap one. Run t...
Engine Oil Pressure Sensor/Switch Circuit Malfunction
Volkswagen Golf • 2009-2015
The 2.0 TSI (EA888 Gen2/Gen3) uses a two-stage oil pressure system with two oil pressure switches at...
Engine Oil Pressure Sensor/Switch Range/Performance
VW Golf 2.0 TSI • 2009-2020
From the EA888 Gen2 onward, the 2.0 TSI switches its oil pump between two pressure stages with the o...
System Voltage Low
Volkswagen Golf • 2003-2024
The Golf Mk5 and Mk6 with the 1.4 TSI can develop alternator pulley clutch failure, where the overru...
Serial Communication Link Malfunction
Volkswagen Golf • 2004-2024
On Golf Mk5 and Mk6 models, P0600 can be triggered by water reaching the ECU, which sits below the w...
ECM/PCM Processor Fault
Volkswagen Golf • 2004-2024
Mk5 to Mk8 Golf models with Bosch MED17/ME17 ECUs frequently set P0606 from a weak battery or a poor...
Glow Plug Control Module Circuit
Volkswagen Golf TDI • 2005-2021
On the Golf TDI the glow plug control module is a smart unit that monitors each plug and reports fau...
Cylinder 1 Glow Plug Circuit
Volkswagen Golf TDI • 2005-2021
The Golf TDI control module monitors each plug individually, so a single failed cylinder 1 plug sets...
Cylinder 2 Glow Plug Circuit
Volkswagen Golf TDI • 2005-2021
The Golf TDI control module monitors each plug individually, so a single failed cylinder 2 plug sets...
Cylinder 3 Glow Plug Circuit
Volkswagen Golf TDI • 2005-2021
The Golf TDI control module monitors each plug individually, so a single failed cylinder 3 plug sets...
Cylinder 4 Glow Plug Circuit
Volkswagen Golf TDI • 2005-2021
The Golf TDI control module monitors each plug individually, so a single failed cylinder 4 plug sets...
Intake Manifold Runner Control Circuit/Open (Bank 1)
Volkswagen Golf • 2004-2024
The Golf with 2.0 TFSI and 2.0 TDI engines commonly triggers P2008 due to actuator connector corrosi...
Lost Communication With ECM/PCM 'A'
VW Golf Mk5/Mk6 (1.9 TDI, 2.0 TSI) • 2004-2013
VAG equivalents are stored as 'no communication with engine control module' in the CAN gateway (J533...
Lost Communication With Anti-Lock Brake System (ABS) Control Module
Volkswagen Golf • 2010-2016 (Mk6/Mk7, 1.4 TSI and 2.0 TDI)
On VAG cars U0121 typically points to the ABS control unit (J104) losing CAN drivetrain communicatio...
Emissions
"A" Camshaft Position - Timing Over-Advanced or System Performance (Bank 1)
Volkswagen Golf • 2006-2024
The 1.4 TSI (CAXA/CAVD) engines from 2006-2014 are notorious for timing chain stretch causing P0011....
Camshaft Position B - Timing Over-Advanced or System Performance (Bank 1)
Volkswagen Golf • 2005-2024
The Golf shares the VAG variable valve timing setup, and the camshaft adjustment valve (N205 region)...
"B" Camshaft Position - Timing Over-Retarded (Bank 1)
Volkswagen Golf • 2006-2024
The 1.4 TSI engines from 2006-2014 are particularly prone to timing chain issues causing P0015. Chec...
"A" Camshaft Position - Timing Over-Advanced or System Performance (Bank 2)
Volkswagen Touareg • 2005-2024
The Touareg 3.0 TFSI EA837 V6 and 3.0 TDI V6 are the typical P0021 candidates. On the 3.0 TDI (CASA,...
"A" Camshaft Position - Timing Retarded (Bank 2)
Volkswagen Touareg • 2005-2024
The Touareg 3.0 TFSI V6 and 3.0 TDI V6 (CASA, CASB) are the typical P0022 candidates. On the 3.0 TDI...
HO2S Heater Control Circuit (Bank 1 Sensor 1)
Volkswagen Golf (FSI/TSI) • 2004-2024
Volkswagen Group diagnostic software lists P0030 as fault 16414, "Oxygen (Lambda) Sensor Heating Cir...
HO2S Heater Control Circuit (Bank 1 Sensor 2)
Volkswagen Golf (FSI/TSI) • 2004-2024
Volkswagen Group diagnostic software lists P0036 as fault 16420, "Oxygen (Lambda) Sensor B1 S2: Heat...
Intake Air Temperature Sensor 2 Circuit High
Volkswagen Golf • 2007-2024
On turbocharged EA888 and EA211 engines the temperature element is built into the charge air pressur...
Manifold Absolute Pressure/Barometric Pressure Circuit
Volkswagen Golf • 1998-2024
Volkswagen Group diagnostic software reports P0105 as fault 16489, Manifold / Barometric Pressure Se...
Manifold Absolute Pressure/Barometric Pressure Circuit Low
Volkswagen Golf • 2005-2024
VW calls this sensor G71, the Saugrohrdruckgeber or intake manifold pressure sender, and VCDS logs P...
Intake Air Temperature Sensor 1 Circuit High
Volkswagen Golf • 2005-2024
VW calls the intake air temperature sensor G42; that is a component designation, not a part number. ...
O2 Sensor Circuit Malfunction (Bank 1 Sensor 1)
Volkswagen Golf • 2005-2024
On VW group cars VCDS shows P0130 as 16514, 'Oxygen (Lambda) Sensor B1 S1: Malfunction in Circuit', ...
O2 Sensor Circuit Low Voltage (Bank 1 Sensor 1)
Volkswagen Golf • 2005-2024
Check whether your Golf's engine uses a wideband (air-fuel ratio) upstream sensor or a narrowband on...
O2 Sensor Circuit Slow Response (Bank 1 Sensor 1)
Volkswagen Golf • 2005-2024
On VW group cars VCDS shows P0133 as 16517, 'Oxygen (Lambda) Sensor B1 S1: Response too Slow'. Besid...
Oxygen Sensor Circuit No Activity Detected (Bank 1, Sensor 1)
Volkswagen Golf • 2004-2014
MK5 and MK6 with the 2.0 TFSI (EA113, for example BPY) and 2.0 TSI (EA888) route the upstream sensor...
O2 Sensor Heater Circuit Malfunction (Bank 1, Sensor 1)
Volkswagen Golf • 2005-2024
On TSI engines the upstream sensor is threaded into the turbo downpipe and sees very high heat. Bosc...
O2 Sensor Circuit Malfunction (Bank 1, Sensor 2)
Volkswagen Golf • 2005-2024
EA888 oil consumption is a recurring issue here. Burning oil coats the downstream sensor element and...
O2 Sensor Circuit Low Voltage (Bank 1, Sensor 2)
Volkswagen Golf • 2005-2024
On EA888 TSI engines oil contamination of the sensor element can cause P0137 without a true sensor f...
O2 Sensor Circuit High Voltage (Bank 1, Sensor 2)
Volkswagen Golf • 2005-2024
On EA888 TSI engines a leaking injector can cause a real rich condition that triggers P0138, so chec...
O2 Sensor Circuit Slow Response (Bank 1, Sensor 2)
Volkswagen Golf • 2005-2024
EA888 oil consumption can cause slow-response faults because oil coats the sensor element. Check oil...
O2 Sensor Circuit No Activity Detected (Bank 1, Sensor 2)
Volkswagen Golf • 2005-2024
On EA888 TSI engines P0140 can come from heater element burnout combined with an oil-contaminated se...
O2 Sensor Heater Circuit Malfunction (Bank 1, Sensor 2)
Volkswagen Golf • 2005-2024
VW uses Bosch sensors as OEM on most Golf models. The EA888 engine's downstream sensor can be tight ...
Exhaust Gas Recirculation Flow Malfunction
Volkswagen Golf • 2003-2024
The 1.9 TDI and 2.0 TDI engines are well-known for EGR valve carbon clogging, especially in stop-and...
Exhaust Gas Recirculation (EGR) Flow Insufficient
Volkswagen Golf • 2005-2024
The Golf TDI (diesel) is the classic P0401 candidate because heavy soot production cakes the EGR val...
Exhaust Gas Recirculation Flow Excessive Detected
Volkswagen Golf • 2009-2024
Golf TDI models with the EA189 and its successor, the EA288, build carbon at the EGR valve seat, and...
Exhaust Gas Recirculation Control Circuit Malfunction
Volkswagen Golf • 2009-2024
On EA189 and EA288 TDI Golfs, P0403 is usually the valve's own solenoid or motor, or its connector. ...
Exhaust Gas Recirculation Control Circuit Range/Performance
Volkswagen Golf • 2009-2024
EA189 and EA288 Golf TDIs throw P0404 frequently after the Dieselgate update because the new EGR str...
Exhaust Gas Recirculation Sensor "A" Circuit Low
Volkswagen Golf • 2009-2024
On EA189 and EA288 TDI Golfs, P0405 is often caused by harness chafing where the EGR loom passes nea...
Exhaust Gas Recirculation Sensor "A" Circuit High
Volkswagen Golf • 2009-2024
EA189 and EA288 TDI Golfs occasionally throw P0406 after harness work or accessory installation that...
Exhaust Gas Recirculation Sensor "B" Circuit Low
Volkswagen Golf • 2013-2024
The EA288 TDI in the Golf 7 and later uses two EGR circuits: a conventional high-pressure EGR valve ...
Exhaust Gas Recirculation Sensor "B" Circuit High
Volkswagen Golf • 2013-2024
The EA288 TDI in the Golf 7 and later uses two EGR circuits: a conventional high-pressure EGR valve ...
Secondary Air Injection System Malfunction
Volkswagen Golf • 2003-2024
The secondary air pump on the 2.0 FSI and EA888 engines is located in the front of the engine bay an...
Secondary Air Injection System Incorrect Flow Detected
Volkswagen Golf • 2003-2024
P0411 on the Golf is almost always caused by the combination valve (N112) sticking from carbon build...
Catalyst System Efficiency Below Threshold (Bank 1)
Volkswagen Golf • 2005-2024
Diesel TDI Golfs rarely set P0420, this code shows up almost entirely on the petrol TSI and TFSI eng...
Warm Up Catalyst Efficiency Below Threshold (Bank 1)
Volkswagen Golf • 2005-2024
Golf TSI and TFSI models with the EA888 engine can show P0421 at higher mileage, often linked to oil...
Main Catalyst Efficiency Below Threshold (Bank 1)
Volkswagen Golf • 2005-2024
On Golf TSI and TFSI models with the EA888 engine, the main cat sits in the underfloor section after...
Catalyst System Efficiency Below Threshold (Bank 2)
Volkswagen Golf • 2005-2024
The Golf is overwhelmingly an inline-4 platform, so a genuine P0430 is uncommon. It is relevant on t...
Warm Up Catalyst Efficiency Below Threshold (Bank 2)
Volkswagen Touareg • 2005-2024
The VW Touareg with the 3.6 FSI VR6 and 3.0 TFSI V6 engines commonly triggers P0431 around 160,000 k...
Main Catalyst Efficiency Below Threshold (Bank 2)
Volkswagen Touareg • 2005-2024
The VW Touareg with the 3.6 VR6 FSI, 3.0 TFSI V6 or 4.2 V8 FSI petrol engines can set P0432 at high ...
Heated Catalyst Temperature Below Threshold (Bank 2)
Volkswagen Touareg • 2019-2024
On the CR Touareg with 3.0 TFSI V6 (EA839) and 4.0 TFSI V8 mild-hybrid, P0434 frequently appears alo...
Exhaust Pressure Sensor "A" Circuit
Volkswagen Golf TDI • 2009-2014
On Volkswagen group common-rail TDIs this code points at exhaust pressure sensor 1 (G450), which is ...
Exhaust Pressure Sensor "A" Circuit Range/Performance
Volkswagen Golf TDI • 2009-2014
On Volkswagen group common-rail TDIs, Volkswagen's text for this code is an implausible signal from ...
Exhaust Gas Temperature Sensor Circuit Low (Bank 1 Sensor 1)
Volkswagen Golf 2.0 TDI • 2009-2014
On the common-rail 2.0 TDI, Volkswagen calls this part exhaust gas temperature sensor 1 (G235). It i...
Exhaust Gas Temperature Sensor Circuit Low (Bank 1 Sensor 1)
Volkswagen Touareg 3.0 TDI • 2011-2016
The 3.0 TDI V6 in the Touareg has four exhaust gas temperature sensors, and Volkswagen's own locatio...
Diesel Particulate Filter Efficiency Below Threshold (Bank 1)
Volkswagen Golf TDI • 2005-2024
VW group diesels use P2002 more broadly than some other makes: VW group fault-code documentation for...
Post Catalyst Fuel Trim System Too Lean Bank 1
Volkswagen Golf • 2010-2019
On EA888 1.8 TSI and 2.0 TSI engines, a ruptured PCV valve diaphragm or a cracked intake manifold le...
O2 Sensor Signal Biased/Stuck Lean (Bank 1, Sensor 1)
Volkswagen Golf • 2005-2024
On the 1.4 TSI and 1.2 TSI Golf, P2195 paired with P0171 is very often a real lean condition from a ...
Intake Air System Leak
Volkswagen Golf 2.0 TSI (EA888 Gen 2) • 2008-2014
The EA888 Gen 2 valve cover integrates the PCV diaphragm. When it tears (very common past 100,000 km...
Diesel Particulate Filter Differential Pressure Too Low (Bank 1)
Volkswagen Passat TDI • 2008-2024
On the Passat 2.0 TDI (EA189 and EA288), the pressure across the filter is measured by exhaust press...
Diesel Particulate Filter Differential Pressure Too High (Bank 1)
Volkswagen Passat TDI • 2008-2024
On the Passat 2.0 TDI (EA189 and EA288), the pressure across the filter is measured by exhaust press...
Diesel Particulate Filter Pressure Sensor "A" Circuit
Volkswagen Golf TDI • 2006-2019
On Volkswagen group TDIs the DPF differential pressure sensor is listed as exhaust pressure sensor 1...
Diesel Particulate Filter Pressure Sensor "A" Circuit Range/Performance
Volkswagen Golf TDI • 2006-2019
Volkswagen's own text for this code is an implausible signal from exhaust pressure sensor 1 (G450), ...
Diesel Particulate Filter Pressure Sensor "A" Circuit Low
Volkswagen Golf TDI • 2006-2019
On Volkswagen group TDIs the DPF differential pressure sensor is exhaust pressure sensor 1 (G450), a...
Diesel Particulate Filter Pressure Sensor "A" Circuit High
Volkswagen Golf TDI • 2006-2019
On Volkswagen group TDIs the DPF differential pressure sensor is exhaust pressure sensor 1 (G450), a...
Diesel Particulate Filter Restriction: Soot Accumulation (Bank 1)
Volkswagen Golf TDI • 2009-2020
Volkswagen's text for this code is "Diesel Particle Filter: Excessive Soot Accumulation", and for th...
Diesel Particulate Filter Restriction: Soot Accumulation (Bank 1)
Volkswagen Transporter T6 2.0 TDI (EA288) • 2015-2019
The Euro 6 2.0 TDI in the T6 belongs to the EA288 family, whose engine computer estimates soot load ...
Exhaust Gas Temperature Sensor Circuit Range/Performance (Bank 1 Sensor 4)
Volkswagen Touareg 3.0 TDI • 2011-2016
The 3.0 TDI V6 in the Touareg has four exhaust gas temperature sensors, and Volkswagen's own locatio...
Ignition
Crankshaft Position - Camshaft Position Correlation (Bank 1 Sensor A)
Volkswagen Golf • 2005-2024
The 1.4 TSI (EA111) from 2006-2014 is notorious for timing chain stretch, often as early as 60,000-8...
Crankshaft Position - Camshaft Position Correlation (Bank 1 Sensor B)
Volkswagen Touareg • 2005-2024
The Touareg 3.0 TFSI shares the EA837 V6 with the Audi A6 and has the same camshaft adjuster failure...
Crankshaft Position - Camshaft Position Correlation (Bank 2 Sensor A)
Volkswagen Touareg • 2005-2024
The Touareg 3.0 TFSI EA837 V6 and 3.0 TDI V6 are the typical P0018 sources. On the 3.0 TDI (CASA, CA...
Crankshaft Position - Camshaft Position Correlation (Bank 2 Sensor B)
Volkswagen Touareg • 2005-2024
The Touareg 3.0 TDI V6 (CASA, CASB) is the prime P0019 candidate due to the well-documented timing c...
Knock Sensor 1 Circuit High Input (Bank 1 or Single Sensor)
Volkswagen Golf • 2005-2024
Mk5 and Mk6 Golf with the 2.0 TFSI (EA113 in earlier cars, EA888 later) sometimes log P0328 after an...
Crankshaft Position Sensor "A" Circuit Malfunction
Volkswagen Golf • 2003-2024
On the 1.9 TDI (ALH/BEW) and 2.0 TDI (BKD/CBDB) engines, the crankshaft position sensor is located o...
Camshaft Position Sensor Circuit Malfunction
Volkswagen Golf • 2005-2024
VW uses Hall-effect CMP sensors on its TSI/TFSI engines. On the EA888 the sensor sits at the back of...
Camshaft Position Sensor "A" Circuit Range/Performance
Volkswagen Golf • 2006-2024
The 1.4 TSI (CAXA) in Golf Mk5 and Mk6 is infamous for timing chain stretch, often triggering P0341 ...
Camshaft Position Sensor "A" Circuit Low Input (Bank 1 or Single Sensor)
Volkswagen Golf • 2008-2024
EA888 engines in Mk6 and Mk7 Golf use a Hall-effect camshaft position sensor that fails with a low-s...
Camshaft Position Sensor "A" Circuit High Input (Bank 1 or Single Sensor)
Volkswagen Golf • 2008-2024
EA888 in Mk6 and Mk7 Golf commonly logs P0343 when the cam sensor wiring breaks where it enters the ...
Ignition Coil A Primary/Secondary Circuit Malfunction
VW Golf • 2006-2016
The 1.4 TSI (EA111) and 2.0 TFSI (EA113/EA888) use coil-on-plug units, and several coil versions fit...
Ignition Coil B Primary/Secondary Circuit Malfunction
VW Golf Mk5/Mk6 • 2006-2014
2.0 TSI (CCTA/CBFA) and 2.5L five-cylinder engines are known for coil failures, and several coil ver...
Ignition Coil C Primary/Secondary Circuit Malfunction
Volkswagen Golf • 2006-2014 (Mk5/Mk6, 2.0 TSI/TFSI, EA113 and EA888)
The 2.0 TSI is known for coil failures in batches, so a single-cylinder code often becomes a full-se...
Ignition Coil D Primary/Secondary Circuit Malfunction
VW Golf • 2006-2016
1.4 TSI (CAVD/CTHD) and 2.0 TFSI (BPY, CCTA) engines have used several coil versions, so fit the cur...
Fuel System
Turbocharger/Supercharger Boost Control "A" Circuit Range/Performance
Volkswagen Golf • 2009-2024
On the common-rail 2.0 TDI the variable-geometry turbo is moved by a vacuum actuator fed through the...
Fuel Rail/System Pressure - Too Low
Volkswagen Golf • 2005-2024
The 2.0 TDI (CR) diesel engines commonly trigger P0087 due to fuel filter contamination or high-pres...
Mass or Volume Air Flow Circuit Malfunction
Volkswagen Golf • 1997-2024
On VW group cars VCDS shows P0100 as 16484, 'Mass Air Flow Sensor (G70): Supply Voltage', so start w...
Mass Air Flow Sensor Range/Performance
Volkswagen Golf • 2005-2024
VW uses Bosch hot-film MAF sensors. On the EA888, the intake tract has multiple joints and a charge ...
Mass or Volume Air Flow Circuit Low Input
Volkswagen Golf • 2008-2024
On Golf engines that use a Bosch hot-film MAF (VW designation G70), P0102 is a low-signal circuit fa...
Mass or Volume Air Flow Circuit High Input
Volkswagen Golf • 2008-2024
On Golf engines with a Bosch hot-film MAF (VW designation G70), P0103 is less common than P0102 but ...
Mass or Volume Air Flow Circuit Intermittent
Volkswagen Golf • 1997-2024
On VW group cars VCDS shows P0104 as 16488, 'Mass Air Flow Sensor (G70): Intermittent'. The listed c...
System Too Lean (Bank 1)
Volkswagen Golf • 2005-2024
The PCV valve, also called the crankcase breather or oil separator, is a frequent P0171 trigger on t...
System Too Rich (Bank 1)
Volkswagen Golf • 2005-2024
The EA888 TSI engine often triggers P0172 from an N80 purge valve that sticks open and continuously ...
Fuel Trim Malfunction (Bank 2)
Volkswagen Touareg • 2010-2024
On the Touareg 3.0 TFSI petrol V6, P0173 is typically driven by Bank 2 lambda sensor ageing or an ai...
System Too Lean (Bank 2)
Volkswagen Golf • 2005-2024
Standard TSI and TFSI Golf models are inline-four and single-bank, so they do not set P0174. Only th...
System Too Rich (Bank 2)
Volkswagen Touareg • 2010-2024
Touareg with the 3.0 TFSI V6 typically sets P0175 after a Bank 2 injector starts seeping at idle. Re...
Fuel Rail Pressure Sensor Circuit Range/Performance
Volkswagen Golf • 2005-2024
The EA888 2.0 TSI direct injection engine uses a high-pressure fuel rail sensor (G247) that operates...
Injector Circuit / Open - Cylinder 1
Volkswagen Golf • 2004-2024
On TSI petrol Golfs the injector connectors sit close to the cylinder head and the locking clips bec...
Injector Circuit / Open - Cylinder 2
Volkswagen Golf • 2004-2024
On TSI petrol Golfs the injector connectors sit close to the cylinder head and the locking clips bec...
Injector Circuit / Open - Cylinder 3
Volkswagen Golf • 2004-2024
On TSI petrol Golfs the injector connectors sit close to the cylinder head and the locking clips bec...
Injector Circuit / Open - Cylinder 4
Volkswagen Golf • 2004-2024
On TSI petrol Golfs the injector connectors sit close to the cylinder head and the locking clips bec...
Injector Circuit / Open - Cylinder 5
Volkswagen Golf • 2004-2024
Standard four-cylinder Golfs do not have a cylinder 5, so P0205 only applies to the five-cylinder 2....
Injector Circuit / Open - Cylinder 6
Volkswagen Golf • 2004-2024
Standard four-cylinder Golfs do not have a cylinder 6, so P0206 only applies to the VR6 Golf R32. Th...
Turbocharger/Supercharger "A" Overboost Condition
Volkswagen Golf • 2005-2024
The EA888 2.0 TSI in GTI models and the 1.4 TSI are common triggers for P0234. VW uses the N75 boost...
Turbocharger/Supercharger Boost Sensor "A" Circuit Range/Performance
Volkswagen Golf GTI 2.0 TSI • 2009-2014
On the first-generation EA888 2.0 TSI (engine codes CCTA and CBFA, used in the Golf GTI and other VW...
Turbocharger/Supercharger Boost Sensor "A" Circuit High
Volkswagen Golf GTI 2.0 TSI • 2009-2014
On the first-generation EA888 2.0 TSI VW logs this fault against the boost sensor G31 as signal too ...
Turbocharger/Supercharger "A" Underboost Condition
Volkswagen Golf • 2005-2024
The 1.4 TSI and 2.0 TDI are frequent triggers for P0299. The plastic charge pipes on the EA888 can c...
Idle Air Control System RPM Lower Than Expected
Volkswagen Golf • 1998-2010
The Mk4 Golf 1.8T has no separate idle air control valve. The cable-throttle AGU engine controls idl...
Idle Air Control System RPM Higher Than Expected
Volkswagen Golf • 2005-2024
VW TSI engines use electronic throttle and are prone to carbon buildup on the throttle body due to d...
Intake Manifold Runner Control Stuck Open (Bank 1)
Volkswagen Golf • 2004-2024
The Golf Mk5 and Mk6 with the 2.0 TFSI (EA113/EA888) and 2.0 TDI (EA189/EA288) engines are extremely...
Intake Manifold Runner Control Stuck Closed (Bank 1)
Volkswagen Golf • 2004-2024
The Golf 2.0 TDI is the most common model to trigger P2006 in Europe, as diesel engines produce more...
Intake Manifold Runner Position Sensor/Switch Circuit Range/Performance (Bank 1)
Volkswagen Golf • 2008-2014
Golfs with the 2.0 TDI common-rail engine (for example CBAB) are among the cars where P2015 is well ...
System Too Lean at Idle (Bank 1)
Volkswagen Golf • 2005-2024
The Golf with 1.4 TSI and 2.0 TFSI engines commonly triggers P2187 due to PCV system failures. The E...
System Too Rich at Idle (Bank 1)
Volkswagen Golf • 2005-2024
The Golf TSI engines (EA111 and EA888) commonly trigger P2188 from leaking fuel injector seals and a...
Cooling System
Engine Coolant Temperature (ECT) Circuit
Volkswagen Golf • 2005-2024
Many VW Golf models use a combined coolant temperature sensor with a known weak point: the plastic s...
Engine Coolant Temperature (ECT) Circuit Range / Performance
Volkswagen Golf • 2005-2024
Many VW Golf engines use a map-controlled or integrated thermostat module, and a stuck-open or faile...
Engine Coolant Temperature (ECT) Circuit Low
Volkswagen Golf • 2005-2024
VW Golf combined coolant sensors can fail internally and short, producing a pinned-high reading. Con...
Engine Coolant Temperature (ECT) Circuit High
Volkswagen Golf • 2005-2024
VW Golf combined coolant sensors and their clips become brittle with heat cycling, so an open circui...
Coolant Thermostat Below Regulating Temperature
Volkswagen Golf • 2005-2024
Many EA888 and EA211 engines use an electronically controlled (map) thermostat that the ECU opens on...
Cooling Fan 1 Control Circuit Malfunction
VW Golf • 2006-2014
On many Mk5 and Mk6 Golfs the radiator fan control unit (J293) is built into the larger of the two f...
Misfire
Random/Multiple Cylinder Misfire Detected
Volkswagen Golf • 2005-2024
On the direct-injection EA888 2.0T in GTI and R models, carbon buildup on the intake valves chokes a...
Cylinder 1 Misfire Detected
Volkswagen Golf • 2005-2024
On EA888 2.0 TSI and 1.4 TSI engines, carbon buildup on the cylinder-1 intake valve is a frequent mi...
Cylinder 3 Misfire Detected
Volkswagen Golf • 2005-2024
The EA888 2.0 TSI in Golf GTI models suffers from carbon buildup on intake valves. Cylinder 3 is com...
Cylinder 5 Misfire Detected
VW Golf R32 3.2L VR6 (BUB) • 2004-2008
The narrow-angle VR6 uses six individual coil packs on a single head, so moving the cylinder 5 coil ...
Single Cylinder Misfire (Cylinder not Specified)
Volkswagen Golf • 2005-2024
VW group diagnostic software shows a misfire recognition counter for each cylinder in the engine com...
EVAP System
Evaporative Emission Control System Malfunction
Volkswagen Golf • 2005-2024
The Mk5 and Mk6 Golf with the N80 purge valve have a well-known failure where the valve sticks open ...
Evaporative Emission System: Incorrect Purge Flow
Volkswagen Golf • 2005-2024
The Golf shares EVAP architecture with the rest of the VAG range and the N80 purge valve is the clas...
Evaporative Emission System Leak Detected (Small Leak)
Volkswagen Golf • 2003-2024
On Golfs with leak-detection hardware, a sticking N80 purge valve can trigger P0442, and the EVAP ho...
Evaporative Emission Control System Purge Control Valve Circuit Open
Volkswagen Golf • 2005-2024
VW calls the purge valve N80, and VCDS reports this code on petrol Golfs as EVAP Purge Control Valve...
Evaporative Emission System Vent Control Circuit
Volkswagen Golf • 2005-2024
On Golfs with North American-style leak-detection hardware, the N80 purge valve and the vent valve a...
Evaporative Emission Control System Vent Control Circuit Open
Volkswagen Golf • 2005-2024
On Golfs with leak-detection hardware, the vent valve is fitted at the charcoal canister near the re...
Evaporative Emission Control System Vent Control Circuit Shorted
Volkswagen Golf • 2005-2024
On Golfs with leak-detection hardware, the vent valve harness runs along the underbody and is expose...
Evaporative Emission Control System Vent Valve/Solenoid Circuit Malfunction
Volkswagen Golf • 2005-2024
On Golfs with leak-detection hardware, P0449 usually traces to the vent valve at the charcoal canist...
Evaporative Emission Control System Pressure Sensor Intermittent
Volkswagen Golf • 2005-2024
European-market Mk5 and Mk6 Golfs are built to EU on-board diagnostic rules, which only require the ...
Evaporative Emission System Leak Detected (Large Leak)
Volkswagen Polo • 2005-2024
The Polo shares many EVAP components with the VW Golf. The N80 purge valve is a common failure point...
Evaporative Emission System: Very Small Leak
Volkswagen Golf • 2005-2024
On Golfs with leak-detection hardware, a weeping N80 purge valve is a known P0456 trigger: it can pa...
Evaporative Emission Control System Leak Detected (Fuel Cap Loose/Off)
Volkswagen Golf • 2005-2024
The Golf fuel cap must be turned until it clicks, and a cap left short of the click after refuelling...
Evaporative Emission System: High Purge Flow
Volkswagen Golf • 2005-2024
The Golf shares EVAP architecture with the wider VAG range, and the N80 purge valve is the usual P04...
Transmission
Transmission Control System Malfunction
Volkswagen Golf • 2003-2024
Golfs with the DQ200 (7-speed dry DSG) and DQ250 (6-speed wet DSG) set P0700 when the mechatronic un...
Transmission Range Sensor Circuit Malfunction (PRNDL Input)
VW Golf • 2005-2014
On the 6-speed Aisin 09G automatic (for example Mk5 and Mk6 Golfs with the 1.6 FSI or the North Amer...
Input/Turbine Speed Sensor Circuit Malfunction
Volkswagen Golf • 2003-2024
On Golf models with the DSG (DQ200/DQ250), the input speed sensors are integrated into the mechatron...
Related posts
Diagnose your Volkswagen with Skanyx
Connect a standard Bluetooth OBD2 adapter to your Volkswagen, scan for codes, and get AI-powered diagnostics with severity ratings and repair cost estimates.
Download Skanyx