Mercedes-benz Cla250 P0139 Engine Error Code

When you check Mercedes-benz Cla250 car engine light came on code P0139 the reason should be Engine Light ON (or Service Engine Soon Warning Light). However Mercedes-benz manufacturer may have a different definition for the P0139 OBD-II Diagnostic Powertrain (P) Trouble Code. So you should chech it on our car models.

Another consequence of P0139 Mercedes-benz Cla250 engine overheating may be a blown head gasket. Heat makes aluminum swell almost three times faster than cast iron. Thermal stress can distort the head and make it swell in areas that are hottest like those between exhaust valves in adjoining cylinders, and areas that have restricted coolant flow like the narrow area that separates the cylinders. The typical aluminum head swells most in the middle, which can crush the head gasket if the head gets too hot. This will usually cause the head gasket to leak compression between adjacent cylinders, or leak coolant into the cylinders.

Mercedes-benz Cla250 P0139 OBD-II Diagnostic Powertrain (P) Trouble Code Description Mercedes-benz Cla250 car P0139 OBD-II Trouble Code The Heated Oxygen Sensor 2 (HO2S), after three way catalyst (manifold), monitors the oxygen level in the exhaust gas on each bank. For optimum catalyst operation, the air fuel mixture (air-fuel ratio) Reason For Mercedes-benz Cla250 P0139 Code The reason of Mercedes-benz Cla250 P0139 OBD-II Engine Error Code is P0139 O2 Sensor Circuit Slow Response Bank 1 Sensor 2.

The rule of P0139 Mercedes-benz Cla250 code when it comes to emissions-related vehicle repair is that any modification that changes the vehicle from a certified configuration to a non-certified configuration is considered tampering: this applies to both vehicle owners and repair facilities and is, therefore, a Federal offense. Replacing a catalyst with a straight pipe is one traditional example of . Likewise, overriding the OBD P0139 Mercedes-benz Cla250 system through the use of high-tech defeat devices or non-certified computer chips, for example, would also be considered tampering. The OBD system may, however, be repaired back to its original certified configuration with certified performance chips or appropriate aftermarket parts.

Mercedes-benz Cla250 P0139 Possible Solution :

What does fault code P0139 mean for Mercedes-benz Cla250 ? What does a diagnostic reading P0139 mean for Mercedes-benz Cla250 ? How to fix OBD2 Code P0139 for Mercedes-benz Cla250 ? What do we know about P0139 code for Mercedes-benz Cla250 ?