Your Porsche Cayenne 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 Porsche Cayenne.
U3523 Porsche Cayenne 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 Porsche Cayenne 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
There are currently two main types of cylinder deactivation used today, depending on the type of engine. U3523 Porsche Cayenne code for the pushrod design which uses solenoids to alter the oil pressure delivered to the lifters. In their collapsed state, the lifters are unable to elevate their companion pushrods under the valve rocker arms, resulting in valves that cannot be actuated and remain closed.