4-cylinder petrol engine
Weakening
Remove the upper belt guard.
Attach a wrench, such as HAZET 2587, to the tension roller.
Loosen the tension roller nut with a ring wrench.
Loosen the toothed belt by turning the tension roller to the left.
Tension
Turn the tensioning pulley to the right - in the direction of the arrow - and tension the toothed belt.
The toothed belt in the middle between the gears of the camshaft and intermediate shaft, clamped between the thumb and forefinger, must still rotate 90°.
Tighten the tensioning roller nut to 45 Nm.
Install the top toothed belt guard.
Start the engine. A whistling noise that occurs during belt operation indicates that the belt is too tight.
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