Non-adjustable steering column
1. Steering mechanism; 2a. Bolt, 25 Nm.; 71b. Nuts, 8 Nm.; 71c. Sealing cuff; 93. Casing; 3. Lower steering shaft; A45. Contact board; S4. Combination switch; S40. Pushbutton switch for the temperature control
Steering rods
11. Steering trapezoid; 11f. Tie rod joints; 11a. Ball joints; 10g. Steering linkage arm tips
The steering system consists of a steering wheel, steering shaft, steering gear, steering rod, steering shock absorber and power steering. The steering wheel is screwed to the steering shaft, which transmits the rotation of the wheel to the steering gear.
Depending on the position of the steering wheel, the gear in the steering mechanism changes. This means that the more the steering wheel is turned, the more indirect the gear becomes. The steering wheel turns easier when parking, for example. Direct gear in the middle position provides increased steering precision, especially at high speeds.
The power steering provides a small amount of force to the steering wheel. It consists of a pump, a reservoir, and pipes. The pump sucks hydraulic oil from the reservoir and delivers it under pressure to the steering gear, where the adjusting device and the working cylinder provide the appropriate force.
As an additional equipment, a mechanical steering column length adjuster can be installed to install the steering wheel.
While the driver's airbag is integrated into the steering wheel, the passenger airbag is located on the right side of the dashboard. In the event of a severe frontal impact, the squib triggers and the airbags inflate in a few thousandths of a second. This is enough time to soften the frontal impact for people. Within seconds of deployment, the airbag deflates as the gases escape through the holes in it. The passenger airbag is an optional extra.
The company recommends replacing the airbag after ten years of vehicle operation to ensure its operation.
Attention! Self-locking nuts are always replaced. Welding and straightening work on the steering is not allowed. In case of lack of experience, as well as major repairs, you should contact the workshop.
Instructions for handling the airbag
[Read more on the website MercedesMan.ru]
The device must not be disassembled; in case of malfunction, the entire assembly is replaced. Since the unit contains explosives, keep it locked or under supervision. Disposal is carried out by branded workshops.
After disassembling, hold the block with the soft side facing up.
The pillow block must not be wiped with water or cleaning agents.
Do not overheat the unit above 100°C.
The airbag unit is sensitive to impacts. If it has fallen from a height of 50 cm, it can no longer be installed on the car.
The airbag unit may only be removed when the battery ground terminal (–) is disconnected and the ignition key is in position "O".