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BMW Codes

Searching through the list of BMW codes is a necessary part of diagnosing the service engine soon light in your car. After scanning your trouble codes, starting with a code or a group of several codes is a great way to begin diagnosing a problem; many times a quick search of a DTC code will lead to a simple answer to help you complete the repair. 

This tool is a great, low-cost pocket scanner that I think all BMW owners should have. If you want a tool that also does ABS specific BMW codes and SRS specific codes, you’ll want this one here.

Below I have compiled a list of the most common DTC fault codes from BMW. There are literally a few thousand codes, but these are the most commonly found codes these days.

P0115  Engine Coolant Temperature Circuit

P0128  Coolant Thermostat

P0171  System Too Lean

P0172  System Too Rich

P0174  System Too Lean

P0175  System Too Rich

P0230  Fuel Pump Primary Circuit

P0301  Cylinder 1 Misfire Detected

P0302  Cylinder 2 Misfire Detected

P0303  Cylinder 3 Misfire Detected

P0304  Cylinder 4 Misfire Detected

P0305  Cylinder 5 Misfire Detected

P0306  Cylinder 6 Misfire Detected

P0307  Cylinder 7 Misfire Detected

P0308  Cylinder 8 Misfire Detected

P0313  Misfire Detected with Low Fuel

P0340  Camshaft Position Sensor “A” Circuit (Intake)

P0385  Crankshaft Position Sensor “B” Circuit

P0410  Secondary Air Injection System

P0411  Secondary Air Injection System Incorrect Flow Detected

P0421  Warm Up Catalyst Efficiency Below Threshold

P0422  Main Catalyst Efficiency Below Threshold

P0442  Evaporative Emission System Leak Detected (Small Leak)

P0597  Thermostat Heater Control Circuit/Open


Have any additional questions or concerns about BMW codes? You can reach me on Twitter, Instagram, Facebook or YouTube with any concerns and I’ll be happy to help!


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