2006 Mercedes-Benz R-Class R35

Replacing the shock mounts on a Mercedes-Benz R-Class R350 (W251) involves several steps and requires specific tools and components. click here for more details on the download manual…..

Below is a detailed guide to performing this task.

### Tools and Materials Required

1. **Tools:**
– Socket set (metric)
– Wrenches (metric)
– Torque wrench
– Floor jack
– Jack stands
– Suspension spring compressor (if necessary)
– Impact wrench (optional but recommended)
– screwdrivers (flat and Phillips)
– Pliers
– Hammer
– Rubber mallet
– Safety goggles and gloves

2. **Materials:**
– New shock mounts (OEM or aftermarket)
– New shock absorbers (if replacing)
– New hardware (if necessary)
– Grease (optional, for mounting surfaces)

### Components of the Shock Mount

– **Shock Absorber:** The part that dampens the impact of the road and controls the rebound of the suspension.
– **Shock Mount (Upper):** The component that connects the shock absorber to the vehicle’s body, often including a rubber bushing to absorb vibrations.
– **Nut/Bolt Assembly:** Fasteners that secure the shock mount to the body and the shock absorber.
– **Dust Boot:** A protective cover that prevents dirt and debris from entering the shock absorber.
– **Spring Seat:** sometimes integrated with the shock mount, it holds the coil spring in place.

### Steps for Shock Mount Replacement

1. **Safety First:**
– Ensure the vehicle is on a flat surface.
– Wear safety goggles and gloves.

2. **Lift the Vehicle:**
– Use a floor jack to lift the vehicle at the designated lifting points.
– Secure the vehicle with jack stands to ensure stability.

3. **Remove the Wheel:**
– Use a socket wrench to remove the lug nuts and take off the wheel. This will give you access to the shock assembly.

4. **Inspect Shock Absorbers:**
– Check for any signs of leakage or damage. If the shock absorbers are worn, consider replacing them at this time.

5. **Remove Shock Absorber:**
– Locate the bolts securing the shock absorber at the bottom (usually at the lower control arm) and the top (attached to the body).
– Use an impact wrench or socket wrench to remove these bolts. It may require holding the shock shaft with a wrench to prevent it from spinning.
– Carefully pull the shock absorber out from the bottom.

6. **Remove Old Shock Mount:**
– At the top of the shock absorber, the shock mount is typically secured with a nut. Use the appropriate socket to remove this nut.
– Once the nut is removed, separate the shock mount from the shock absorber. You may need to tap it gently with a hammer or use a rubber mallet If it’s stuck.

7. **Install New Shock Mount:**
– Take the new shock mount and position it onto the top of the new or existing shock absorber.
– Secure it with the nut, making sure it’s tight but do not overtighten at this stage.

8. **Reinstall Shock Absorber:**
– Insert the shock absorber back into its mounting position. Line up the bottom of the shock with the control arm and secure it with the bolts.
– Torque the bolts to the manufacturer’s specifications (check the repair manual for specifics).

9. **Reattach the Wheel:**
– Place the wheel back on download Mercedes Benz R Class R350 W251 OEM workshop manual and hand-tighten the lug nuts.
– Lower the vehicle back to the ground using the floor jack and then fully tighten the lug nuts in a criss-cross pattern.

10. **Test the Installation:**
– Before driving, press down on the vehicle to ensure the suspension compresses and rebounds appropriately.
– Check for any unusual noises or movements.

11. **Repeat for Other Side (if necessary):**
– If you are replacing the shock mounts on both sides, repeat the above steps for the other side.

### Important Tips

– Always refer to the vehicle’s service manual for specific torque specifications and detailed diagrams.
– If the vehicle has a self-leveling suspension, ensure you understand the system before proceeding with the replacement.
– Consider replacing the shock absorbers If you notice any signs of wear or If the vehicle has high mileage.

### Conclusion

Replacing the shock mounts on a Mercedes-Benz R-Class R350 (W251) can significantly improve ride quality and handling. Always take the necessary precautions and, If unsure, consult a professional mechanic to perform the replacement for you.
The steering box, also known as the steering gear, is a crucial component of a vehicle’s steering system. It is responsible for translating the rotational motion of the steering wheel into the lateral movement of the vehicle’s wheels. Essentially, it serves as the intermediary that allows the driver to control the direction of the vehicle effectively.

There are several types of steering boxes, including recirculating ball, rack and pinion, and worm gear systems. Each type has its own mechanism for achieving this motion, but they all share the common purpose of enabling precise steering control. The recirculating ball steering box uses a series of ball bearings to reduce friction and improve steering feel, making it common in older vehicles and trucks. On the other hand, the rack and pinion system, which has become more prevalent in modern vehicles, utilizes a gear mechanism that translates the rotary motion of the steering wheel into the linear motion needed to turn the wheels.

The steering box is typically mounted to the vehicle’s chassis and is connected to the steering column, which transmits the driver’s input. It also connects to the tie rods that link to the wheels, allowing for direct control over the vehicle’s direction. Proper functioning of the steering box is essential for safe driving, as any wear or malfunction can lead to poor steering response, reduced handling, and even loss of control of the vehicle. Regular maintenance and inspection are vital to ensure its longevity and reliability, contributing significantly to overall driving safety and comfort.

Category: 2006 Mercedes-Benz R-Class R35

Download 2006 Mercedes-Benz R-Class R350 (W251) OEM Download Service & Repair Manual Software –