Your Horch 35 engine control system detects a problem, the computer stores the diagnostic trouble
code U3523 in its memory.
To figure out what is wrong with your vehicle you must first extract the U3523 DTC For Horch 35.
U3523 Horch 35 engine problem can be occur defective fan clutches are a common and often overlooked cause of engine overheating. The shear characteristics of the clutch fluid gradually deteriorates over time, with an average loss in drive efficiency of about 200 rpm per year. Eventually slippage reaches the point where effective cooling is no longer possible and overheating results. (On average, the life of a fan clutch is about the same as a water pump. If one needs to be replaced, the other usually does too.)
U3523 Horch 35 DTC Meaning
Network Code - Problem is climate control system, lighting, airbags, etc.
SAE - Generic
Auxiliary Emission Controls
Cruise Control Servo Indicates Low
TFP Valve Position Switch-Drive Without Drive Ratio
If your vehicle failed a U3523 Horch 35 test and the U3523 Check Engine Light is NOT on, chances are you have a problem with the OBDII system, a burned out MIL lamp, or a faulty catalytic converter. The converter is essentially an afterburner that cleans up the exhaust after it exits the engine. The OBDII system uses U3523 a ownstream oxygen sensor to monitor the efficiency of the converter, and it should detect a drop in converter efficiency if the converter has been contaminated or is failing (ignition misfiring, leaky exhaust valves, and oil burning can all damage the converter). What you want to look U3523 DTC For Horch 35: Any conditions that might cause ignition misfire, an overly rich or lean fuel condition, or loss of compression.