P0351 on Volkswagen
Ignition Coil A Primary/Secondary Circuit Malfunction
P0351 on Volkswagen vehicles indicates ignition coil a primary/secondary circuit malfunction. Au7o has documented this code across 3 Volkswagen models — most commonly on Jetta, New Beetle, Rabbit. P0351 indicates the engine computer found a fault in the primary or secondary circuit of ignition coil 'A' (typically the coil for cylinder 1 or the first coil in the firing system). The PCM monitors the coil's control circuit, and when the electrical feedback doesn't match what it expects during firing, it sets this code. Because the coil creates the high-voltage spark, this often causes a misfire, rough idle, hesitation, or loss of power. It is a circuit/component fault for one specific coil rather than a general engine problem. Typical repair costs on Volkswagen range from $80 to $400, depending on the specific model and root cause.
Common Causes of P0351
- •Failed or weak ignition coil
- •Damaged or corroded coil connector or pigtail
- •Broken or shorted wiring in the coil control circuit
- •Loss of power feed or ground to the coil
- •Worn or fouled spark plug overloading the coil
- •Failed coil driver inside the PCM/ECM
P0351 on Volkswagen by Model
Volkswagen Jetta(1 issue)
- Ignition Coil Failure2008-2021
The ignition coils on 2.0T engines can fail, causing misfires, rough running, and check engine lights. This is especially common on older coils and when using aftermarket spark plugs. High boost applications accelerate coil wear.
Volkswagen New Beetle(1 issue)
- Ignition Coil Pack Failure (1.8T/2.0)1998-2011
The individual ignition coil packs on the 1.8T and 2.0L engines fail frequently, causing misfires. This is one of the most common VW repairs of the era. Coils typically fail one at a time.
Volkswagen Rabbit(1 issue)
- 2.5L 5-Cylinder Ignition Coil Pack Failure2006-2009
The 2006-2009 Rabbit with the 2.5L 5-cylinder engine (07K) is notorious for premature ignition coil pack failures. The individual coil-on-plug packs crack internally from heat cycling, causing misfires and rough running. The 5-cylinder layout requires all 5 coils to function properly for smooth operation, and a single failed coil creates noticeable vibration. Coils typically fail between 40,000-80,000 miles.
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View P0351 across all makes →Frequently Asked Questions
What does P0351 mean on Volkswagen?▼
P0351 stands for "Ignition Coil A Primary/Secondary Circuit Malfunction." P0351 indicates the engine computer found a fault in the primary or secondary circuit of ignition coil 'A' (typically the coil for cylinder 1 or the first coil in the firing system). The PCM monitors the coil's control circuit, and when the electrical feedback doesn't match what it expects during firing, it sets this code. Because the coil creates the high-voltage spark, this often causes a misfire, rough idle, hesitation, or loss of power. It is a circuit/component fault for one specific coil rather than a general engine problem. On Volkswagen specifically, this code is documented across 3 models.
What causes P0351 on Volkswagen vehicles?▼
Common causes on Volkswagen: Failed or weak ignition coil, Damaged or corroded coil connector or pigtail, Broken or shorted wiring in the coil control circuit, Loss of power feed or ground to the coil, Worn or fouled spark plug overloading the coil. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0351 on a Volkswagen?▼
Repair costs on Volkswagen range from $80 to $400, depending on the specific model and root cause.
Which Volkswagen models have P0351 documented?▼
Au7o has documented P0351 on 3 Volkswagen models: Jetta, New Beetle, Rabbit.