To check the condition of the belt... ...by pulling it up... ...we remove the engine screen from the four studs.
To check the belt tension...
...we press with our finger on the belt in the middle between the pulleys of the generator and the coolant pump.
With a pressing force of about 8.0 kgf, the belt deflection should be 12±1 mm.
To adjust the belt tension, remove the rubber hoses supplying air to the throttle assembly.
Using a 13 mm head, loosen the three nuts securing the tension roller bracket.
Location of accessory drive belt and tension roller bracket mounting nuts (for clarity, shown with the engine cooling system radiator removed).
Using a 13 mm wrench or head, turn the adjusting bolt clockwise, tightening the belt.
Tighten the nuts securing the tension roller bracket. We start the engine, stop it and check the belt tension again.
Do not overtighten the belt! Excessive belt tension leads to premature failure of the belt and bearings of the generator, coolant pump and power steering pump.
We replace the auxiliary drive belt if cracks, tears, or separation of the rubber from the fabric base are detected. On a car with air conditioning, remove the air conditioning compressor drive belt (see "Checking the condition and replacing the air conditioning compressor drive belt").
Loosen the tension roller bracket mounting nuts (see above) and turn the adjusting bolt counterclockwise, loosening the belt tension.
We remove the belt from the tension roller...
...and other pulleys.
Auxiliary Drive Belt Marking (five-strand, 1888 mm long).
We install the new belt in the reverse order, putting it first on the crankshaft pulley, and lastly on the tension roller. After installation, adjust the belt tension (see above).