Toothed Belt Tension, Adjust (17 DR and X 17 DTL) Adjustment is performed with the engine cold - at room temperature.
 Remove, Disconnect Remove alternator V-belt - see operation "V-belt - Alternator, Remove and Install". Remove upper part of front toothed belt cover. Remove crankshaft pulley (1) - counterhold on fastening bolt (2) of toothed belt drive pulley. Remove lower part of front toothed belt cover.
 Adjust At fastening bolt of toothed belt drive pulley, turn crankshaft in engine rotational direction to TDC - mark on toothed belt drive pulley must align with mark on the oil pump. | 
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Release fastening bolt (2) of the toothed belt tension roller. Turn adjusting eccentric (1) in direction of arrow (anti-clockwise) until pointer is located just before right stop - tighten fastening bolt (2). | 
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Adjust New Toothed Belt, Adjust: At fastening bolt of toothed belt drive pulley, turn crankshaft two turns (720 ° ) in engine rotational direction to TDC - mark (1) on toothed belt drive pulley must align with mark (2) on the oil pump. Release fastening bolt (6) slightly and turn adjuster eccentric (5) in direction of arrow (clockwise) until pointer (3) on toothed belt tension roller aligns with the notch mark (4). Tighten fastening bolt (6) of toothed belt tension roller - tightening torque 25 Nm.
 Inspect At fastening bolt of toothed belt drive pulley, turn crankshaft two turns (720 ° ) in engine rotational direction to TDC - mark (1) on toothed belt drive pulley must align with mark (2) on the oil pump. Check adjustment of toothed belt tension roller. If the pointer (3) does not align with the notch mark (4), repeat the adjustment procedure. | 
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Adjust Run-in Toothed Belt, Adjust: At fastening bolt of toothed belt drive pulley, turn crankshaft two turns (720 ° ) in engine rotational direction to TDC - mark (1) on toothed belt drive pulley must align with mark (2) on the oil pump. Release fastening bolt (6) slightly and turn adjuster eccentric (5) in direction of arrow (clockwise) until pointer (3) on toothed belt tension roller is approx. 4 mm/0.16 in to the left of the notch mark (4). Tighten fastening bolt (6) of toothed belt tension roller - tightening torque 25 Nm.
Inspect At fastening bolt of toothed belt drive pulley, turn crankshaft two turns (720 ° ) in engine rotational direction to TDC - mark (1) on toothed belt drive pulley must align with mark (2) on the oil pump. Check adjustment of toothed belt tension roller. If the pointer (3) is not approx. 4 mm to the left of the notch marks (4), repeat the adjustment procedure. | 
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Remove, Disconnect Attach lower part of front toothed belt cover to rear toothed belt cover - tightening torque 4 Nm/ 3 lbf. ft. Attach crankshaft pulley to toothed belt drive pulley - counterhold on fastening bolt of toothed belt drive pulley - tightening torque 20 Nm/ 15 lbf. ft. Attach upper part of front toothed belt cover to rear toothed belt cover - tightening torque 4 Nm/ 3 lbf. ft. Install alternator V-belt - see operation "V-belt - Alternator, Remove and Install".
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