Mercedes-Benz S420 Transmission Fluid Service at your home or office.

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Transmission Fluid Service Service

How much does a Transmission Fluid Service cost?

On average, the cost for a Mercedes-Benz S420 Transmission Fluid Service is $190 with $95 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1997 Mercedes-Benz S420V8-4.2LService typeTransmission Fluid ServiceEstimate$336.41Shop/Dealer Price$409.27 - $588.46
1999 Mercedes-Benz S420V8-4.2LService typeTransmission Fluid ServiceEstimate$344.91Shop/Dealer Price$423.06 - $606.22
1994 Mercedes-Benz S420V8-4.2LService typeTransmission Fluid ServiceEstimate$318.45Shop/Dealer Price$391.22 - $566.16
1995 Mercedes-Benz S420V8-4.2LService typeTransmission Fluid ServiceEstimate$308.95Shop/Dealer Price$379.93 - $553.52
1996 Mercedes-Benz S420V8-4.2LService typeTransmission Fluid ServiceEstimate$284.59Shop/Dealer Price$349.55 - $504.92
1998 Mercedes-Benz S420V8-4.2LService typeTransmission Fluid ServiceEstimate$316.41Shop/Dealer Price$389.30 - $568.51
Show example Mercedes-Benz S420 Transmission Fluid Service prices

What is the transmission fluid all about?

Transmission fluid helps cool and lubricate your vehicle’s transmission’s internal parts. The transmission transfers power from the engine to the wheels of the car. An automatic transmission shifts the car into different gears depending on the speed that you are driving. In an automatic transmission car, the transmission system has an oil pan that contains the transmission fluid and fluid filter. The fluid provides the power/force required to shift into different gears. In manual transmission cars, there is a case that contains the transmission fluid.

Contrary to an automatic transmission, the fluid in a manual system is not directly involved in changing gears, because it is a mechanical system, whereas an automatic transmission is hydraulic. If an automatic transmission does not have enough fluid, or the fluid has been contaminated, it is possible for the transmission to start to slip and eventually fail. If a manual transmission does not have enough fluid, or the fluid has been contaminated, it is possible for the transmission to become noisy, the internal parts to wear out faster and eventually for the transmission to fail.

Keep in mind:

  • An automatic transmission fluid service will replace the pan gasket, filter, and transmission fluid. Some vehicles do not have a serviceable transmission filter and some transmissions are designed to be “sealed for life,” meaning that they do not require any service or maintenance. Check your owner’s manual for information on whether you have a sealed system or not.

  • Unlike an automatic transmission, a manual transmission does not contain a filter, which means that as components wear, the transmission fluid picks up particles of metal and is unable to filter them. This is why it is very important to perform a transmission fluid service as per manufacturer recommendations.

How it's done:

  • Drain the transmission fluid
  • (Automatic only) Install new pan gasket and filter (if replaceable)
  • Add the proper type and quantity of oil/fluid for your transmission
  • Check for leaks
  • Test drive the vehicle

How do Mechanics Change Transmission Fluid? :

  • Drain the transmission fluid.
  • (Automatic only) Install new pan gasket and filter (if replaceable).
  • Add the proper type and quantity of oil/fluid for your transmission.
  • Check for leaks.
  • Test drive the vehicle.

Our recommendation:

A conservative rule of thumb is that a car should get a transmission fluid service every 40,000 miles. If you notice any fluid underneath the car, get it inspected as soon as you can. Changing your transmission’s fluid regularly will greatly extend the service life of your vehicle’s transmission.

What are the common symptoms indicating you need to replace the transmission fluid?

  • Vehicle has a hard time running
  • Vehicle stalls when going up or down a steep incline
  • Check Engine Light is on
  • Transmission makes noise

How important is this service?

Transmission fluid services are an important part of regular maintenance and will increase the service life of your transmission. According to the Automatic Transmission Rebuilders Association, 90% of automatic transmission failures are caused by overheating and can be often blamed on transmission fluid that should have been replaced.

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Excellent Rating

(13)

Rating Summary
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Anthony

7 years of experience
133 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.

Peter

43 years of experience
1321 reviews
Peter
43 years of experience
Mercedes-Benz S420 V8-4.2L - Transmission fluid is leaking Inspection - Phoenix, Arizona
Awesome mechanic and great knowledge

Manuel

12 years of experience
87 reviews
Manuel
12 years of experience
Mercedes-Benz S420 V8-4.2L - Car is overheating - Naples, Florida
Very prom and good mechanic .

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.

Excellent Rating

(13)

Rating Summary
12
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12
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Number of Mercedes-Benz S420 services completed
143+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1100+
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