Adjusting Toe

Preliminary work: Check whether the steering wheel is displaced with respect to the steering gear. To do this, center the steering gear as described below.

Turn wheels to the straight-ahead position.

Then readjust the front wheel alignment, if necessary, until pin -2-  in driver -1-  and lug on steering gear housing -4-  , line up.

Fig 1: Identifying Steering In Center Position

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No. 3 is the desired breaking point for pins in new steering gears. The (new) pin -2-  is inserted into driver -1-  and its underside sits in lug -4-  . This locks the steering gear in the center position. After installation of a new steering gear, the lower part of the pin is sheared off at desired breaking point -3-  ) by turning the steering wheel. The upper part of the pin -2-  remains in the driver.

Fig 2: Identifying Steering In Center Position

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If necessary, reposition the steering wheel. When doing this, seek the best position.

Fig 3: Locating Mark Center Steering Position

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→ Use only steering wheel holders that do not project into the area of the airbag unit during suspension alignment work.

→ Observe the safety regulations for handling airbag units.

Clamp steering wheel in center position with steering-wheel holder -A-  . Use only steering-wheel holders that do not project into the area of the airbag unit -B-  . If necessary, shorten guide rod of steering-wheel holder at the top -arrow-  .

For fast and reliable steering wheel alignment in the center position use a -steering wheel balance-  (with integrated angle measurement box)→ WE1343 Steering wheel balance  .

Fig 4: Locating Steering-Wheel Holder

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Fig 5: Identifying Steering Wheel Balance

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Release tie rod locking nut(s) -2-  . When undoing or tightening tie rod locking nuts on the square part of the tie rod -3-  , with a spanner, apply counter-pressure. Next, adjust toe at the hexagonal part -1-  of the tie rod(s). Then tighten tie rod locking nuts -2-  with the specified tightening torque.

Fig 6: Adjusting Toe

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To loosen and tighten the tie-rod lock nut(s), use special tool (socket-wrench insert) P 9730 -A-  together with a torque wrench -B-  . The tightening torque for the tie-rod lock nut(s) of 50 Nm (37 ftlb.), when using a socket-wrench insert 9730  , corresponds to a value of approx. 32.5 Nm (24 ftlb.) on the torque wrench.

Fig 7: Identifying Tie Rod-Lock Nut

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