Mercedes B 180 U0138 Engine Trouble Code

When the check engine light comes Mercedes B 180 U0138 code on the first you should check is the gas cap. Pull over, retighten it, and take a look at the cap to see if it has any cracks in it. Continue driving and see if the check engine light turns off. Alternately, you can purchase a gas cap for about $3 at an auto parts store. All you need to do is take the old one off and screw on the new one. If you've already made it to the store, you might as well just replace it. While not car-threatening, it's good to take care of this right away to improve gas mileage.

Mercedes B 180 U0138 Code Meaning :

When you check Mercedes B 180 car engine light came on code U0138 the reason should be . However manufacturer may have a different definition for the U0138 OBD-II Diagnostic Network (U) Trouble Code. So you should chech it on our car models.

U0138 OBD-II Diagnostic Network (U) Trouble Code Description

U0138 engine trouble code is about Exhaust Gas Recirculation Sensor B Circuit High.

Reason For U0138 Code

The reason of U0138 OBD-II Engine Trouble Code is Engine Oil Temperature Sensor Malfunction.

U0138 code on vehicles with electronically controlled automatic transmissions, the 3-4 shift solenoid is responsible for actuating the hydraulic circuits to activate clutches or bands that change gears inside the automatic transmission.

U0137 Previous Engine Trouble Code For Mercedes B 180

Next Engine Trouble Code For Mercedes B 180 U0139