Volkswagen Passat 1995 Official Factory Repair Manual page 1931

Multiport fuel injection and ignition system
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Continuation
- Start engine and run at idle speed.
The temperature value must increase
uniformly.
If the specification is not attained:
- Replace Engine Coolant Temperature (ECT)
sensor -G62-.
WARNING!
The cooling system is pressurized when the
engine is warm. When opening the expansion
tank, wear gloves and other appropriate
protection, cover the cap with a cloth, and
open carefully to relieve system pressure
slowly.
- Press
button.
- Press buttons -0- and -6- to select "End Output"
function 06 and press -Q- button to confirm
input.
- Switch ignition off.
Notes:
Display on VAG 1551 scan tool jumps by 1.5
C increments.
If irregular engine running occurs in certain
temperature ranges and the temperature value
does not increase without interruption, the
temperature signal is temporarily interrupted
and the sensor must be replaced.
Page 92 of 126
24-90
12/6/2004