How to Put Transmission Fluid in an E320 Mercedes Benz

Written by marlo peterson
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How to Put Transmission Fluid in an E320 Mercedes Benz
The Mercedes E320, unlike most cars, does not come with a transmission fluid dipstick. (Front-light of black mercedes image by Mladenov from

The Mercedes Benz E320, unlike most cars, does not come with transmission fluid dipsticks. For this reason, you must purchase one from a dealer or car parts store before checking and adding to your fluid levels. Once a dipstick is purchased, the process of adding and checking transmission fluid is identical to most other cars. Fluids should be checked once a week and changed every 30,000 miles to keep your Mercedes in good condition.

Skill level:

Things you need

  • A dipstick
  • Transmission Fluid
  • Funnel
  • A rag

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  1. 1

    Turn you car on, allowing it to run for about 10 or 15 minutes to let the engine warm up.

  2. 2

    Pop the bonnet of the car and locate the transmission cap. You will see a red cap behind the engine and near the transmission.

  3. 3

    Unscrew the transmission cap. Insert the dipstick into the fluid well. Let it set for about 10 or 15 seconds.

  4. 4

    Pull the dipstick out and check the readings. You will notice a line on bottom that says "LOW" and one on top that says "FULL". If fluid does not reach the "LOW" line, you will need to add more.

  5. 5

    Pour transmission fluid directly into the hole where you unscrewed the cap. To recheck levels, wipe the dipstick clean with a rag and repeat the process. Once the fluid level is correct you may screw the cap back on and turn off your vehicle.

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