Instrument Cluster / Carrier: Description and Operation
Instrument Cluster
The design for the Cayenne was basically adapted from the layout for the 911 Carrera, with 5 round gauges in a single instrument package.
The placement of the round gauges and location of individual instruments and displays within the package vary somewhat from the 911 Carrera, depending upon function. The analog tachometer and speedometer are placed to the right and left of the center gauge and project forward away from the other round gauges.
The digital speedometer display is located in the multifunction display in the center instrument.
The Cayenne instrument cluster has two variations with different digital displays such as Gear Indicator for Tiptronic. Service Interval Exterior Temperature and various warning indicators.
"High Line" Version (Standard Cayenne S)
The multifunction display is monochrome (yellow) 3-inch dot-matrix display.
The dot-matrix display is an LCD, the resolution of which depends upon monochrome pixels controlled by the system electronics. The display screen in rho basic version allows all relevant information to be shown.
"Premium" Version (Standard on Cayenne Turbo)
This instrument cluster contains a high-resolution 5-inch TFT (Thin-Film-Transistor) color screen comparable to that found on high-quality laptops. The enlargement of the data field as well as the higher resolution of the TFT display enables a very high level of legibility. Due to its larger size, the lower area of the display continuously shows the temperature on the left side, and below this, the vehicle odometer reading. In between is the digital speedometer, below to the right is the time and below that, the trip odometer.
The left side of the display contains the optional compass reading, on the right is the gear indicator of the Tiptronic transmission. The multifunction display with its highly legible lettering is integrated into the center of the display. When no special function display is required in the central area of the display, the basic image indicates the average fuel consumption.
The main menu items which can be displayed in the 3 and 5-inch display.
- Telephone
- Km/h (mph) Limit
- Vehicle information
- On-Board computer
- Tire air pressure
- Settings
Speedometer Display Cayenne S and Cayenne Turbo
The digital speedometer is located in the multifunction display in the center instrument. In addition, an analog gauge is located to the right of the multi function display.
Odometer Display Cayenne S
The top display counts the total distance driven by the vehicle, the bottom display displays the trip distance. The trip odometer, upon reaching 9999 kilometers or 6213 miles, resets to "zero."
Operating switch "A" (approximately 1 second) likewise resets the trip odometer to "zero."
Odometer Display Cayenne Turbo
The odometer is located in the multifunction display in the instrument panel The left display counts the total distance driven by the vehicle, the right displays the trip distance.
Tachometer
The start of the red region on the tachometer scales is an optical indicator of the maximum allowable engine speed. The engine speed is limited to protect the engine when this limit is achieved.
The multifunction display functions both as a central information source as well as an operating menu for a number of systems frequently used by the driver. Operation is by using the rocker switch integrated into the right steering column lever. The touch control on the bottom of the switch serves to select the function to be shown in the multifunction display. If this button is depressed for longer than one second, the selected values are reset.
Engine Oil Temperature Gauge
If the engine oil temperature is too high, a warning message appears in the multifunction display,
Clock
The clock is set in the On-Board computer. Vehicles with Porsche Communication Management (PCM), time synchronization are performed by the navigation system (GPS real time). Independent of the actual GPS time, the time displayed in the instrument cluster as well as in the PCM can optionally be set forward or back as desired.
Temperature Gauge - Cooling System
Pointer below 80 degrees C - engine cold
Pointer in range of 90 degrees C - normal operating temperature
If the engine is under heavy load and high exterior temperature, the pointer may move up to the start of the red field.
If the coolant temperature is too high, or the coolant level too low, a corresponding warning appears shown in the multifunction display.
Fuel Gauge
When the ignition is switched on (Terminal 15) or is running, the fuel level is displayed. If the fuel reserve falls below approximately 12 liters, allowing additional travel of about 30 miles (50 km) when the engine is running, a warning light and text appear in the multifunction display.
Voltmeter
The voltmeter indicates the vehicle's total electrical voltage. The normal range lies between 12 and 16 volts. During engine start the voltage may drop significantly. If the vehicle voltage is too low, there is a warning in the multifunction display.
See also the section "Vehicle Electrical System Control Module."
For safety reasons, the cruise control deactivates if the Porsche Stability Management (PSM) controls driving dynamics for longer than 0.2 seconds.
Engine Boost Pressure (Cayenne Turbo)
Since the engine is equipped with boost pressure control, boost pressure is variable. Boost pressure is dependent upon different engine parameters.