Mercedes-Benz S420 Differential/Gear Oil Replacement at your home or office.

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Differential/Gear Oil Replacement Service

How much does a Differential/Gear Oil Replacement cost?

On average, the cost for a Mercedes-Benz S420 Differential/Gear Oil Replacement is $126 with $31 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1998 Mercedes-Benz S420V8-4.2LService typeDifferential / Gear Oil - Rear ReplacementEstimate$176.95Shop/Dealer Price$209.94 - $269.54
1995 Mercedes-Benz S420V8-4.2LService typeDifferential / Gear Oil - Front ReplacementEstimate$156.95Shop/Dealer Price$189.97 - $249.59
1997 Mercedes-Benz S420V8-4.2LService typeDifferential / Gear Oil - Rear ReplacementEstimate$156.95Shop/Dealer Price$189.97 - $249.59
1997 Mercedes-Benz S420V8-4.2LService typeDifferential / Gear Oil - Front ReplacementEstimate$156.95Shop/Dealer Price$189.93 - $249.52
1994 Mercedes-Benz S420V8-4.2LService typeDifferential / Gear Oil - Front ReplacementEstimate$156.95Shop/Dealer Price$190.00 - $249.64
1999 Mercedes-Benz S420V8-4.2LService typeDifferential / Gear Oil - Rear ReplacementEstimate$156.95Shop/Dealer Price$189.97 - $249.59
1998 Mercedes-Benz S420V8-4.2LService typeDifferential / Gear Oil - Front ReplacementEstimate$161.95Shop/Dealer Price$194.73 - $254.17
1995 Mercedes-Benz S420V8-4.2LService typeDifferential / Gear Oil - Rear ReplacementEstimate$161.95Shop/Dealer Price$195.39 - $255.31
Show example Mercedes-Benz S420 Differential/Gear Oil Replacement prices

What is the Differential/Gear Oil all about?

Differential oil is a type of oil. Cars have a gearbox connecting the two axles. This gearbox is responsible for the conversion of engine power and its transmission to the wheels, allowing them to turn at varying speeds. This part of the car is called the differential, and lubrication is needed for it to function properly. Differential fluid, also called differential oil, provides the lubrication and cooling of the car’s differential. The fluid is there to protect the gears’ metal surfaces from friction, and to prevent overheating and burning.

Keep in mind:

  • Some vehicles have a front differential and others have a rear differential.
  • Some vehicles use a synthetic gear oil.

How it's done:

  • Check fluid level.
  • Inspect the rear housing for leaks.
  • Remove the cover (if the differential does not have a drain plug).
  • Install new gasket if needed.
  • Fill with new fluid.

Our recommendation:

Differential oil should be changed every 30,000 to 50,000 miles. You should aim to have the gear oil changed every 30,000 miles, but it’s a good idea to have a mechanic check the differential oil during regular maintenance services.

What common symptoms indicate you may need to replace the Differential/Gear Oil?

Gear oil is contaminated with metal particles or other substances.

How important is this service?

The differential is responsible for transferring the power from the engine to the transmission and the wheels, and for controlling how much power goes to each wheel. Like many aspects of your vehicle, the differential requires oil to act as lubrication. Differential oil allows the differential to move smoothly and consistently, which allows the vehicle to continue sending power to the wheels. If the differential oil is old, it may be contaminated with debris and metal shavings. This contamination will come into constant contact with the differential, which can cause severe long term damage to the differential.

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Excellent Rating

(13)

Rating Summary
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Whitney

39 years of experience
783 reviews
Whitney
39 years of experience
Mercedes-Benz S420 V8-4.2L - Brake Pads Replacement (Front, Rear) - Palo Alto, California
He is great.

Eric

15 years of experience
133 reviews
Eric
15 years of experience
Mercedes-Benz S420 V8-4.2L - Oil Change - Bowie, Maryland
Kept me informed for his arrival. Was very friendly.

Melvin

17 years of experience
221 reviews
Melvin
17 years of experience
Mercedes-Benz S420 V8-4.2L - Trunk does not lock or open - Atlanta, Georgia
I am a independent private driver, and my trunk, passenger doors, engine light, sunroof all began to malfunction at the same time on my s500 Mercedes Melvin came out in the cold and in 30 minutes knew exactly what all the problems were. His knowledge is superb! I will be using Mr Melvin again.

Anthony

7 years of experience
128 reviews
Anthony
7 years of experience
Mercedes-Benz S420 V8-4.2L - Car is overheating - Sacramento, California
showed up on time did diagnostics right away he was pretty accurate.

Excellent Rating

(13)

Rating Summary
12
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Number of Mercedes-Benz S420 services completed
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services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1100+
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