P0178 DTC For Mercedes Benz W123
Mercedes Benz W123 Engine Specifications:
| Engine Type : | Multi-Cylinder Engine |
| Cylinder Type : | Opposite Piston Engine |
| Engine Air Intake Process : | Turbocharged Engine |
Your Mercedes Benz W123 engine control system detects a problem, the computer stores the diagnostic trouble
code P0178 in its memory.
To figure out what is wrong with your vehicle you must first extract the P0178 DTC For Mercedes Benz W123.
On 1999 and later P0178 Mercedes Benz W123 engines, the instrument cluster has a built-in self-diagnostic mode that can be accessed by pressing and holding the instrument cluster SELECT/RESET button. Insert the ignition key and turn to the RUN position (but don't crank or start engine). Continue to press and hold the SELECT/RESET button (for 5 seconds) until the word TEST is displayed by the odometer. Release the SELECT/RESET button within three seconds after the word TEST is displayed to begin the self-diagnostic mode.
P0178 Mercedes Benz W123 DTC Meaning
| P |
Powertrain Code - Problem is related engine, transmission and emissions systems. |
| 0 |
SAE - Generic |
| 1 |
Fuel And Air Metering |
| 7 |
Exhaust Gas Recirculation System Valve 1 |
| 8 |
Park/Neutral Postion (PNP) Switch Circuit Engine Torque Signal Circuit |
If your P0178 Mercedes Benz W123 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 P0178 and engine control unit are in charge of monitoring a bunch of different P0178 DTC For Mercedes Benz W123, and if they get a reading that's a little out of whack, up pops the check engine light.
You can also check other Mercedes car models :
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The listed Mercedes models will give information about P0178 DTC.
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