AutoCodesBMW – P0355 BMW

P0355 BMW Code - Ignition Coil Cylinder 5

Quick Answer

The ignition system on the vehicle uses individual ignition coils for each cylinder. Common causes include Faulty Ignition Coil 5, Ignition Coil 5 harness is open or shorted, Ignition Coil 5 circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P0355 BMW indicates Ignition Coil Cylinder 5.
Common causes
Common causes include Faulty Ignition Coil 5, Ignition Coil 5 harness is open or shorted, Ignition Coil 5 circuit poor electrical connection.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 7,582
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 14, 2020
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Code P0355 BMW Description

The ignition system on the vehicle uses individual ignition coils for each cylinder. The Engine Control Module (ECM) controls each ignition coil operation. The ECM sends a ON/OFF signal to energize the ignition coil to create a spark at the spark plug when a spark is required at the cylinder.
OBDII Code P0355 BMW - Ignition Coil Cylinder 5 - AutoCodes.com
P0355 BMW Code - Ignition Coil Cylinder 5

What are the Possible Causes of the DTC P0355 BMW?

  • Faulty Ignition Coil 5
  • Ignition Coil 5 harness is open or shorted
  • Ignition Coil 5 circuit poor electrical connection
  • Faulty Engine Control Module (ECM)

How to Fix the DTC P0355 BMW?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0355 BMW code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0355 BMW Code

What does the OBDII code P0355 mean for a BMW?

The code P0355 indicates a malfunction in the ignition coil for cylinder 5, which can result in misfires or poor engine performance.

What are common symptoms of the P0355 code?

Common symptoms include a rough idle, engine misfires, a decrease in power, and the check engine light being illuminated.

What can cause the P0355 code to trigger?

Causes can include a faulty ignition coil for cylinder 5, damaged wiring or connectors, a failed powertrain control module (PCM), or issues with the spark plug.

How can I diagnose the P0355 code?

Start by visually inspecting the ignition coil and its wiring for damage. Use a multimeter to test the resistance of the coil and check for spark at the plug.

What should I do if I have a P0355 code?

You should replace the ignition coil for cylinder 5, check the spark plug condition, and inspect the wiring and connectors for any faults.

Is it safe to drive my BMW with a P0355 code?

It is not advisable to drive the vehicle, as continued operation can lead to more severe engine damage and decreased fuel efficiency.

Can I clear the P0355 code after repairs?

Yes, once repairs are made, you can use an OBDII scanner to clear the code. However, ensure the underlying issue is resolved to prevent the code from returning.

What is the average cost to repair the P0355 code?

Repair costs can vary, but replacing the ignition coil typically ranges from $100 to $300, depending on labor rates and parts used.

Will replacing the ignition coil fix the P0355 code?

In most cases, replacing the faulty ignition coil will resolve the P0355 code, but it’s important to confirm there are no other underlying issues.

How can I prevent the P0355 code from reoccurring?

Regular maintenance, such as replacing spark plugs at recommended intervals and inspecting ignition components, can help prevent issues that trigger the P0355 code.

Discuss the causes and fixes for P0355 BMW OBDII Code

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