Performing a differential service on a Mercedes-Benz A Class W168 might seem complex, but I’ll break it down into simple steps. Click now to see the full download manual……
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This service generally involves changing the differential fluid, which helps ensure smooth operation and longevity of the vehicle’s drivetrain. Here’s how to go about it:
### Tools and Materials You Will Need:
1. **New differential fluid** (check your owner’s manual for the correct type and quantity)
2. **Socket set** (usually a 10mm or 12mm socket is needed)
3. **Wrench** (if necessary for your bolts)
4. **Fluid pump** (for easier filling)
5. **Oil catch pan** (to catch old fluid)
6. **Rags or paper towels** (for cleaning)
7. **Safety gloves and goggles** (to protect yourself)
8. **Jack and jack stands** (to lift the vehicle safely)
### Step-by-Step Guide:
#### 1. **Prepare the Vehicle**
– **Park on a flat surface**: ensure your vehicle is on a level ground.
– **Lift the vehicle**: Use the jack to lift the car and place it securely on jack stands. Make sure it’s stable before you work underneath.
#### 2. **Locate the Differential**
– The differential is typically located at the rear of the vehicle (or front, depending on your model). It’s a metal case with bolts on it.
#### 3. **Drain the Old Fluid**
– **Position the oil catch pan**: place it under the differential to catch the old fluid.
– **Remove the drain plug**: Using your socket wrench, carefully unscrew the drain plug. Allow the old fluid to completely drain into the pan. This may take a few minutes.
#### 4. **Inspect the Differential**
– While the fluid is draining, take a moment to inspect the differential for any leaks or damage. If you See metal shavings or excessive wear, you may need professional help.
#### 5. **Replace the Drain Plug**
– Once all the old fluid has drained, clean the drain plug and the area around it. Then, screw the drain plug back in securely, but don’t overtighten it.
#### 6. **Fill with New Fluid**
– **Locate the fill plug**: This is usually located higher up on the differential.
– **Remove the fill plug**: Use your socket wrench to remove it.
– **Use the fluid pump**: Attach the fluid pump to the new differential fluid bottle and insert it into the fill hole. Pump the new fluid in until it starts to leak out of the fill hole. This means the differential is full.
– **Replace the fill plug**: Once filled, clean the area
and securely replace the fill plug.
#### 7. **Clean Up**
– Wipe up any spills and ensure that all tools and materials are removed from under the vehicle.
– Dispose of the old fluid properly at a recycling center or automotive shop.
#### 8. **Lower the Vehicle**
– Carefully remove the jack stands and lower the car back to the ground.
#### 9. **Test Drive**
– Take the car for a short test drive to ensure that it is running smoothly and to listen for any unusual noises.
### Tips:
– Always refer to your owner’s manual for specific recommendations regarding fluid type and capacity.
– If you feel uncertain at any point, it’s best to consult with a professional mechanic.
By following these steps, you can successfully perform a differential service on your Mercedes-Benz A Class W168. Remember, regular maintenance helps keep your vehicle running smoothly!
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