- Disconnect the battery and leave the vehicle for at least 5 minutes to avoid false airbag deployment;
- unscrew the two airbag unit mounting bolts from the back of the steering wheel and carefully remove the unit from the front of the steering wheel so that the multi-pin connector can be removed from the back of the unit;
Warning: Place the unit with the mechanism upside down in a protected place to avoid unintentional activation of the unit.
- set the steering wheel to the middle position and lock it in this position;
- unscrew the bolt in the middle of the steering wheel and remove the wheel from the steering knuckle shaft.
Install in the reverse order of removal. Tighten the steering wheel nut to 50 Nm.
Sometimes it happens that the wheel is not set exactly to the middle position. This is caused by different lengths of the tie rods. Correct this as follows:
- when the car is moving in a straight line, make marks on the steering wheel hub and steering column trim with a felt-tip pen to indicate the position of the wheel;
- place the car on supports;
- apply marks on both cross rods with some sharp object to the left and right of the locknut to fix how the rods and their ends are located, then loosen the locknuts and the fastening clamps of the cuffs so that you can rotate the rods without the cuffs.
Now, according to the given wheel position, the steering rods can be adjusted as follows:
- if the steering wheel is turned to the left, then, looking from the left side of the car, turn both rods to the right by the same amount;
- if the steering wheel is turned to the left, then, looking from the left side of the car, turn both rods to the same value to the left;
- adjustment is carried out empirically, in general the following rule is valid: turn the transverse rods by 30° for every 1° of wheel rotation;
- tighten the lock nuts and secure the cuffs, check and, if necessary, adjust the wheel alignment.