Description
The part number A001989850309 (also written as A 001 989 85 03 09) is a genuine Mercedes-Benz automatic transmission fluid (ATF) designed for dual-clutch, automatic or DCT transmissions, meeting the manufacturer’s specification.
Key features & information:
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Listed as “Automatic transmission fluid, oil … OE number by Mercedes-Benz”. Spareto+2PartSouq+2
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Example product specs: 1 L bottle, yellow fluid, synthetic type, suitable for DCT/automatic transmissions requiring MB specification such as MB 236.21/236.24. autodoc.parts+2youparts.gr+2
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Compatible aftermarket references: FEBI Bilstein 39070 (1 L) referencing the same OEM part number. autodoc.parts+1
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The fluid is designated for transmissions that specify this exact part number or spec — using the correct fluid is critical for proper shifting, transmission durability and warranty compliance.
Recommended Usage / Notes:
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When listing or selling, specify the volume (typically 1 L) and that the fluid meets Mercedes’s specification for transmissions requiring A001989850309.
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Note that only use this fluid for transmissions that explicitly require this part number or specification — installing the wrong fluid can lead to shifting issues or premature wear.
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When servicing, ensure correct fill quantity, follow manufacturer’s procedures (drain, fill, bleed, if required) and discard any old fluid responsibly.

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