U0688 Mercedes-benz W123 Engine Fault Code

Check Solution For U0688 Mercedes-benz W123 OBD Code :

U0688 Mercedes-benz W123 engine code seems a kind of network problem, we try to show one by one the meaning and the solution.
Brief explanation of the U0688 Mercedes-benz W123 code and definition of U0688 Mercedes-benz W123 is the bottom side.

U0688 Mercedes-benz W123 Meaning :

u Network Code
Problem is climate control system, lighting, airbags, etc.
0 SAE - Generic
6 Vehicle Speed Control And Idle Control System
8 Exhaust Gas Recirculation System Valve 1
8 PCM Stack Overrun

SAE - Generic codes, which have a '0' as their second digit to indicate they are common to all makes and models of vehicles. These are the codes that are required for basic emissions fault diagnosis.

How To Fix U0688 Mercedes-benz W123 ?

The catalytic converter has an oxygen sensor in front and behind it. When the vehicle is warm and running in closed loop mode, the upstream oxygen sensor waveform reading should fluctuate.

U0688 Mercedes-benz W123 Code Description:

The valves of each cylinder are kept closed using a pair of arms that replace the conventional engine's roller-type rocker arm. U0688 code one of these arms follows the cam profile while the second arm connects to the valves. During normal engine operation the two arms are joined by a locking pin. When you see U0688 Mercedes-benz W123 engine fault code on your engine code reader this description will help you.

U Codes List of all Network codes.

Final Step: In the definitions listed below, there is a test drive recommended after you've completed any repairs to see if the condition is fixed. Before you take a test drive after a repair, always erase the U Code(s) first. This will turn the check engine light off and then you will know if the check engine light returns, you've got further diagnostics to complete.

BE CAREFUL !
This engine code information is presented for information purposes only. This is not intended as repair advice and we are not responsible for any actions you take on any vehicle.

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