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The following information is actually sold on ebay for GBP 4.00. Is this common knowledge or a well kept secret?
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Speedometers have a factory built-in percentage error to show a speed faster than your actual speed of travel.
The Climatronic (Climate Control) system has diagnostic codes that you can access by the pressing of certain buttons on the Climate Control console.
One of these codes shows your actual speed of travel without this built-in percentage error.
These codes are accessed by one of the following procedures.....
A/- To access the actual speed display, start your car and then on your climate control panel press and hold-in both the Econ and Auto buttons or the Recirculation and Temperature Up buttons. This will change your outside temperature reading to Fahrenheit.
Then press the recirculation button and at the same time press the upward pointing arrow button above the recirculation button.
Your climate control screen will change to a different mode displaying 1c.
Use your temperature control + button to display code 17c. This is the actual speed display feature.
Press the recirculation button again to activate the code and to display it' s reading in mph.
(Accessing the codes with the outside temperature reading displayed in Centigrade will display your speed in kph)
To revert your Climate Control to normal mode, simply press the Auto button or switch off the ignition.
Some SEAT's only display the speed in kph whether or not Fahrenheit or Centigrade is selected.
B/- To access the actual speed code on some VW's (Passat's etc) the following method applies....
Hold-in Fan Down, Temperature Colder, ECON all at the same time. Use the + / - temperature control buttons to view the various codes. Code 16 (sometimes 17) is the actual speed code.
Code 16 displays the speed you are travelling at on your centre screen in kph.
Press-in the Econ and Auto buttons together to change to mph.
To revert your Climate Control to normal mode, simply press the Economy button or switch off the ignition.
--------------------------------------------------- REMARK I did not think this up. It appears to be information from instructionbooks used by Volkswagen/Audi/Skoda/Seat garages. Ad
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yes you are correct ,also audi used code 22 on older models, it tells you information about it in the jgeds audi cd at www.audicd.pwp.blueyonder.co.uk

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Ad wrote:

Certainly works, although mine was reading exactly what was on the Speedo.
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