Mercedes-benz 560sec U0121 Engine Error Code

When you check Mercedes-benz 560sec car engine light came on code U0121 the reason should be Engine Light ON (or Service Engine Soon Warning Light). However Mercedes-benz manufacturer may have a different definition for the U0121 OBD-II Diagnostic Network (U) Trouble Code. So you should chech it on our car models.

Another consequence of U0121 Mercedes-benz 560sec 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 560sec U0121 OBD-II Diagnostic Network (U) Trouble Code Description Mercedes-benz 560sec car U0121 OBD-II Trouble Code Modules connected to the high speed General Motor Local Area Network (GMLAN) serial data circuits monitor for serial data communications during normal vehicle operation. Operating information and comm Reason For Mercedes-benz 560sec U0121 Code The reason of Mercedes-benz 560sec U0121 OBD-II Engine Error Code is U0121 Lost Communication With Electronic Brake Control Module.

The rule of U0121 Mercedes-benz 560sec 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 U0121 Mercedes-benz 560sec 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 560sec U0121 Possible Solution :

What does fault code U0121 mean for Mercedes-benz 560sec ? What does a diagnostic reading U0121 mean for Mercedes-benz 560sec ? How to fix OBD2 Code U0121 for Mercedes-benz 560sec ? What do we know about U0121 code for Mercedes-benz 560sec ?