U1109 DTC For Mercedes Benz W123

Mercedes Benz W123 Engine Specifications:
Engine Type :Single Cylinder Engine
Cylinder Type :V-Type Engine
Engine Air Intake Process :Naturally Aspirated

Your Mercedes Benz W123 engine control system detects a problem, the computer stores the diagnostic trouble code U1109 in its memory. To figure out what is wrong with your vehicle you must first extract the U1109 DTC For Mercedes Benz W123.

To solve U1109 Mercedes Benz W123 problem, you'll have to remove the muffler, crankcase and other components blocking the valve chamber. Then, remove the cylinder head bolts (label for easy re-installation) Adjust the jaws of the valve spring compressor until they touch the top and bottom of the valve chamber Push the tool in to compress the spring and tighten the jaws Remove the retainers and lift out the valves , compressors and springs

U1109 Mercedes Benz W123 DTC Meaning

U Network Code - Problem is climate control system, lighting, airbags, etc.
1 MFG - Manufacturer Specific
1 Fuel And Air Metering
0 Air Conditioning (A/C) Clutch Feedback Circuit High Voltage
9 A/C System High Pressure High Temperature

The rule of U1109 Mercedes Benz W123 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 U1109. Likewise, overriding the OBD U1109 DTC For Mercedes Benz W123 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.

U1108 DTC (Previous DTC Code) ( Next DTC Code ) U110A DTC
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