Fault code P0353 – a step-by-step guide to diagnosing and fixing it

The meaning of error code P0353 – Ignition Coil C Primary/Secondary Circuit Malfunction

P0353: Causes, signs and repairs

Error code P0353 is displayed and the check engine light is on - what does this mean?

DTC P0353 is triggered by the OBD/EOBD system when a problem is detected with the ignition coil C primary circuit. This fault code indicates that the engine control unit has detected a malfunction in the ignition coil of cylinder 3 or its power supply.

What can cause this fault code?

Defective ignition coil on cylinder 3
Damaged wiring to the ignition coil
Corroded or loose plug connections
Defective engine control unit (ECM)
Short circuit in the ignition coil circuit
Interrupted ground wire of the ignition coil
Overheated ignition coil due to other engine problems
Faulty spark plug causing coil overload

What symptoms occur in parallel with fault code P0353?

Engine misfires: Particularly noticeable in cylinder 3 at low engine speeds
Loss of power: Reduced engine power and poor acceleration
Unsteady idling: Engine runs unevenly at idle speed
Increased fuel consumption: Due to inefficient combustion
Starting problems: Difficult starting, especially when the engine is cold
Black smoke: From the exhaust due to incomplete combustion
Knocking noises: Metallic noises from the engine compartment

How can I fix the problem with error code P0353?

Repairing trouble code P0353 requires a systematic approach to identify the source of the fault.
Replace the ignition coil of cylinder 3: Remove the defective coil and replace it with a new, compatible component
Check and repair wiring and plug connections: Inspect all cables for damage and replace defective cables
Measure the resistance of the ignition coil: Use a multimeter to measure the primary and secondary resistances and compare with the manufacturer's specifications
Diagnose the engine control unit and replace if necessary: Have the ECM tested by a specialist and replace if defective
Replace the spark plug of the affected cylinder: Replace the spark plug, as a defective plug can overload the coil
Complete electrical check of the ignition system: Check the voltage, ground and signals in the entire ignition circuit

FAQ - Frequently asked questions about DTC P0353

Can I continue driving with fault code P0353?

Short journeys are possible, but you should have the vehicle repaired as soon as possible. Error code P0353 can lead to engine damage due to misfiring and unburned fuel.

How much does it cost to repair error code P0353?

The costs vary depending on the cause: a new ignition coil costs 50-150 euros, wiring repairs 80-200 euros, a new engine control unit can cost 500-1500 euros.

How do I recognize a defective ignition coil with P0353?

Typical signs are engine misfiring, especially in cylinder 3, rough idling and visible damage or discoloration on the coil due to overheating.

Can code P0353 be caused by a defective spark plug?

Yes, a defective spark plug can overload the ignition coil and trigger fault code P0353. Therefore, always check the spark plug of the affected cylinder as well.

How long does it take to repair P0353?

Replacing an ignition coil takes around 30-60 minutes. For more complex wiring problems or ECM replacement, several hours may be required.

Does fault code P0353 occur more frequently under certain driving conditions?

EOBD code P0353 can occur particularly when the engine is cold, in high humidity or after long periods of inactivity, as the electrical connections are then more vulnerable.

Vehicles in which error code P0353 occurs most frequently

Error code P0353 is a manufacturer-independent OBD code that indicates problems with the ignition coil of cylinder 3 and can occur in various vehicle brands, but is most common in the following vehicles:

Audi: A3, A4, A6, Q5 (2005-2015)
BMW: 3 Series, 5 Series, X3, X5 (2006-2014)
Ford: Focus, Fiesta, Mondeo, Kuga (2004-2016)
Mercedes-Benz: C-Class, E-Class, A-Class (2007-2015)
Opel: Astra, Insignia, Corsa, Zafira (2005-2017)
Peugeot: 206, 207, 308, 407 (2003-2014)
Renault: Megane, Scenic, Laguna, Clio (2004-2015)
Seat: Leon, Ibiza, Altea, Toledo (2005-2016)
Skoda: Octavia, Fabia, Superb, Yeti (2006-2017)
Volkswagen: Golf, Passat, Polo, Tiguan (2005-2016)
Volvo: V70, S60, XC60, XC90 (2006-2015)

If code P0353 occurs in your vehicle, you should first have the ignition coil and its electrical connections checked. This error code occurs more frequently in modern vehicles with direct injection, as the ignition coils are exposed to higher loads. Early diagnosis and repair prevents consequential damage to the engine and catalytic converter.

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