Mercedes 300SL Transmission Fluid Parts

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0009899203A Febi ATF, Automatic Transmission Fluid; Dexron III H; 1 Liter
Febi ATF, Automatic Transmission Fluid; Dexron III H; 1 Liter | 0009899203A
For Mercedes models with automatic transmission up through 722.4XX type mechanical transmission specifying Dexron III fluid. NOT for use in any later model electronic transmissions (722.5xx, 722.6xx, 722.7xx).
1990, 1991, 1992, 1993 Mercedes 300SL
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$21.29
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$22.18
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$27.00

The average cost of a Mercedes 300SL transmission fluid is between $21.29 and $21.29.

Transmission Fluid Capacity and Specification for Mercedes 300SL

  • Mercedes 300SL (R107, 1986-1989, 3.0L I6)
    • Transmission: 4-speed automatic (722.3xx series)
    • Fluid Capacity: 7.9 quarts for a complete change (includes torque converter)
    • Fluid Specification: Dexron III/Mercon ATF
  • Mercedes 300SL (W198, 1954-1963, 3.0L I6)
    • Transmission: 4-speed manual
    • Fluid Capacity: 2.4 quarts for a complete change
    • Fluid Specification: SAE 90 GL-1 Gear Oil
  • Mercedes 300SL (W129, 1989-1993, 3.0L I6)
    • Transmission: 5-speed automatic (722.5xx series)
    • Fluid Capacity: 8.5 quarts for a complete change (includes torque converter)
    • Fluid Specification: Dexron III/Mercon ATF
  • Mercedes 300SL (W129, 1993, 3.2L I6)
    • Transmission: 5-speed automatic (722.5xx series)
    • Fluid Capacity: 8.5 quarts for a complete change (includes torque converter)
    • Fluid Specification: Dexron III/Mercon ATF

How Often Should Mercedes 300SL Transmission Fluid Be Changed?

If you care about keeping a Mercedes 300SL running well, there’s no sense in skipping fluid changes. Most people who know these cars suggest swapping the transmission fluid out every 30,000 to 40,000 miles. Early manuals might call for longer intervals, but neglect adds risk, not value. For cars that mostly sit or see only light driving, mark your calendar every three to five years instead. Time has just as much effect as mileage. Old, dirty fluid doesn’t just smell burned — it can trigger hard shifting, slipping, or real damage. Check your car’s manual, because small differences do matter. Fresh fluid means smoother shifts and better odds of a long-lived transmission.

What Type Of Transmission Fluid Does A Mercedes 300SL Require?

Pick the right Mercedes 300SL transmission fluid, and you’ll keep the gears happy. Most automatics from the late eighties and early nineties want Dexron II or Dexron III. It pays to match or beat the original spec — cheaper alternatives can shorten a transmission’s lifespan. Part numbers sometimes change, so double-check with trusted suppliers or take a look at your latest manual if possible. Manual transmission models have completely different needs. If you’re working with a rare build or European import, don’t guess — check before you pour.

How Can You Tell If Mercedes 300SL Transmission Fluid Needs Changing?

Sometimes the signs show up before you even lift the hood. You might notice delayed shifting, sudden thuds between gears, or a new whine when you least expect it. Pull the dipstick and look for color: healthy fluid looks clear and red, not brown or gritty. Take a whiff. Burnt smells are a red flag. Dirty, dark fluid or particles clinging to the stick almost always mean it’s time for a change. Old 300SLs get temperamental about neglect, and leaving fluid unchanged only makes things worse — fast.

What Is The Correct Transmission Fluid Capacity For Mercedes 300SL?

You’ll never regret measuring twice before pouring once. Automatic 300SLs take about 8 to 9 quarts in a full system change, but if you’re only draining the pan, expect to use 4 to 5 quarts. Not all the fluid leaves the torque converter or lines during a simple service, so don’t add too much at first. Check the level with the engine running and transmission warm, cycling through all the gears. Too much or too little can hurt more than you think. Stick to the guide in your manual and keep a rag handy just in case.

Can You Mix Different Brands Of Mercedes 300SL Transmission Fluid?

It’s a question almost every DIY mechanic considers at some point. Mixing fluid brands isn’t a disaster if both meet the Dexron II or III spec, but different formulas may not like each other. Foaming, slipping, or chattering can sneak up when formulas clash. Changing everything at once with one brand works best, and if you have no other choice, read the compatibility notes. Mixing synthetic and standard fluids? Only do it if the manufacturer gives the okay. No shortcut is worth the headache if your transmission starts to act up.

Why Choose AutohausAZ For Mercedes 300SL Transmission Fluid?

There are plenty of options out there, but not all of them make things easy. At AutohausAZ, we make it simple to find the right Mercedes 300SL transmission fluid without wading through generic listings or waiting for a special sale. Our stock covers old models and new ones, with prices that don’t keep you counting pennies at the checkout. Shipping comes fast, and if there’s a problem, our returns don’t create trouble. You get support without a maze of phone prompts. Whether it’s a weekend garage job or an urgent fix, we take the stress out and let you focus on what matters: getting back behind the wheel of your Mercedes 300SL.