U0701 Mercedes E Class OBD Code

OBD/2 U0701 error code description and symptoms.

Variable Cam Timing Over-advanced (Bank 1) The comprehensive component monitor (CCM) monitors the VCT position for an over-advanced camshaft timing.
The test fails when the camshaft timing exceeds a maximum calibrated value or remains in an advanced position. Cam timing improperly set No oil flow to the VCT piston chamber Low oil pressure VCT solenoid valve stuck closed Camshaft advance mechanism binding (VCT unit) U0701 DTC is a check of the VCT unit.

Some systems require that the actuator has an adequate supply of brake fluid. Low brake fluid levels can mimic the symptoms of code U0701, so consult the manual to locate the brake fluid reservoir. Bear in mind that a low fluid level can set code U0701 on some applications, so make sure that on fluid operated systems the fluid level is up to the mark before starting an electrical diagnosis.

U0701 Mercedes E Class Error Code Repair Process :

If your pump rotor control underfueling check engine light is illuminated, it's best to take it in for diagnostic testing, which can feel like a hassle. Because while the lights vary in appearance from vehicle to vehicle, all have the same basic meaning: There's a problem with the car's emissions system. The on-board diagnostics system U0701 and engine control unit are in charge of monitoring a bunch of different pump rotor control underfueling, and if they get a reading that's a little out of whack, up pops the check engine light.

Common Causes of Mercedes E Class U0701 OBD2 Code

A common cause of code U0701 is the failure of Pump Rotor Control Underfueling, but there are several other possible causes as well, such as ;

Camshaft advance mechanism binding (VCT unit)
Faulty TCM or TCM programming
Incorrect Positive Crankcase Ventilation (PCV) hose connection
Faulty Air fuel ratio (A/F) Sensor 1 Bank 1

U0701 is a kind of Network Trouble Code

U-code indicates that engine communication errors and shows lost communication with engine parts.U-Codes are fairly straight forward, given all of the articles and technical publications that have been written regarding these problematic codes. In most cases, it just comes down to identifying the module that isn't communicating with the other modules on the CAN bus line for whatever reason.

Engine OBD 2 Codes website is a freeware resource center for engine trouble codes.

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U0701 Mercedes E Class OBD Code

U0701 Mercedes E Class Error Code Repair Process :

Common Causes of Mercedes E Class U0701 OBD2 Code

U0701 code for other Mercedes cars