🧪Fluid Capacities

BMW i3 Fluid Capacities

Factory manual fluid capacities for the BMW i3. Exact capacities and specs extracted from the LEMON service manual archive.

Last updated: 2026-10-29 • Reading time: 8 min • By AllOEMManuals Editorial Team

Quick Answer

2019-2021 BMW i3: — Refrigerant oil 1 Note: BMW Part No. 81 22 9 407 724. This oil (Refrigerant oil 1) may not be mixed with refrigerant oil Sanden SP-A2.

GenerationYearsTop spec
2019-20212019-2021— Refrigerant oil 1 Note: BMW Part No. 81 22 9 407 724. This oil (Refrigerant oil 1) may not be mixed with refrigerant oil Sanden SP-A2.
2016-20182016-2018— Refrigerant oil 1 Note: BMW Part No. 81 22 9 407 724. This oil (Refrigerant oil 1) may not be mixed with refrigerant oil Sanden SP-A2.
20152015— Refrigerant oil 1 Note: BMW Part No. 81 22 9 407 724. This oil (Refrigerant oil 1) may not be mixed with refrigerant oil Sanden SP-A2.

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Factory Manual ConfirmationFluid Capacities

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2019-2021 BMW i3: — Refrigerant oil 1 Note: BMW Part No. 81 22 9 407 724. This oil (Refrigerant oil 1) may not be mixed with refrigerant oil Sanden SP-A2.

Fluid type and capacity can change by engine, drivetrain, and transmission. Verify the exact branch before filling anything. Once the spec is confirmed, use the supplies and purchase links below to build the full one-trip shopping list before you start the repair.

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2019-2021

Air Cond Compressor Oil— Refrigerant oil 1 Note: BMW Part No. 81 22 9 407 724. This oil (Refrigerant oil 1) may not be mixed with refrigerant oil Sanden SP-A2.
Air Cond Refrigerant1.65 LBS. (0.74 KG) — R-134a Part No. 83 19 9 408 386. R1234yf Part No. 83 19 2 354 790 Note: The nameplate in the engine compartment indicates which refrigerant has been used.
Automatic Transmission Fluid0.53 QTS. (0.5 L) — Hypoid Axle Oil G3 (Fuchs Titan EG 4218)
Brake Fluid— BMW Brake Fluid DOT 4 with low viscosity
Engine Coolant8.67 QTS. (8.2 L) — Frostox HT-12 antifreeze and corrosion inhibitor
Engine Oil2.75 QTS. (2.6 L) — BMW TwinPower Turbo SAE 0W-30
Windshield Washer FluidNote: Fill with water and - if required - with a washer antifreeze (according to manufacturer's recommendations). Mix the washer fluid before adding it to the reservoir.
Notes
  • →BMW Part No. 81 22 9 407 724. This oil (Refrigerant oil 1) may not be mixed with refrigerant oil Sanden SP-A2.
  • →The nameplate in the engine compartment indicates which refrigerant has been used.
  • →Fill with water and - if required - with a washer antifreeze (according to manufacturer's recommendations). Mix the washer fluid before adding it to the reservoir.

2016-2018

Air Cond Compressor Oil— Refrigerant oil 1 Note: BMW Part No. 81 22 9 407 724. This oil (Refrigerant oil 1) may not be mixed with refrigerant oil Sanden SP-A2.
Air Cond Refrigerant1.65 LBS. (0.74 KG) — R-134a Part No. 83 19 9 408 386. R1234yf Part No. 83 19 2 354 790 Note: The nameplate in the engine compartment indicates which refrigerant has been used.
Automatic Transmission Fluid0.53 QTS. (0.5 L) — Hypoid Axle Oil G3 (Fuchs Titan EG 4218).
Brake Fluid— BMW Brake Fluid DOT 4 with low viscosity
Differential Gear Oil— Hypoid Axle Oil G3 (Fuchs Titan EG 4218) Only for Rear differential, not for hang-on clutch (HOC) Note: BMW Part No. 83 22 2 365 988.
Engine Coolant4.54 QTS. (4.29 L) — Frostox HT-12 antifreeze and corrosion inhibitor
Engine Oil2.75 QTS. (2.6 L) — BMW High Performance Synthetic Engine Oil, SAE 0W-20
Windshield Washer FluidNote: Fill with water and - if required - with a washer antifreeze (according to manufacturer's recommendations). Mix the washer fluid before adding it to the reservoir.
Notes
  • →BMW Part No. 81 22 9 407 724. This oil (Refrigerant oil 1) may not be mixed with refrigerant oil Sanden SP-A2.
  • →The nameplate in the engine compartment indicates which refrigerant has been used.
  • →BMW Part No. 83 22 2 365 988.
  • →Fill with water and - if required - with a washer antifreeze (according to manufacturer's recommendations). Mix the washer fluid before adding it to the reservoir.
Air Cond Compressor Oil— Refrigerant oil 1 Note: BMW Part No. 81 22 9 407 724. This oil (Refrigerant oil 1) may not be mixed with refrigerant oil Sanden SP-A2.
Air Cond Refrigerant1.65 LBS. (0.74 KG) — R-134a Part No. 83 19 9 408 386. R1234yf Part No. 83 19 2 354 790 Note: The nameplate in the engine compartment indicates which refrigerant has been used.
Automatic Transmission Fluid0.53 QTS. (0.5 L) — Hypoid Axle Oil G3 (Fuchs Titan EG 4218).
Brake Fluid— BMW Brake Fluid DOT 4 with low viscosity
Differential Gear Oil— Hypoid Axle Oil G3 (Fuchs Titan EG 4218) Only for Rear differential, not for hang-on clutch (HOC) Note: BMW Part No. 83 22 2 365 988.
Engine Coolant4.54 QTS. (4.29 L) — Frostox HT-12 antifreeze and corrosion inhibitor
Engine Oil2.60 QTS. (2.46 L) — BMW High Performance Synthetic Engine Oil, SAE 0W-30
Windshield Washer FluidNote: Fill with water and - if required - with a washer antifreeze (according to manufacturer's recommendations). Mix the washer fluid before adding it to the reservoir.
Notes
  • →BMW Part No. 81 22 9 407 724. This oil (Refrigerant oil 1) may not be mixed with refrigerant oil Sanden SP-A2.
  • →The nameplate in the engine compartment indicates which refrigerant has been used.
  • →BMW Part No. 83 22 2 365 988.
  • →Fill with water and - if required - with a washer antifreeze (according to manufacturer's recommendations). Mix the washer fluid before adding it to the reservoir.

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Frequently Asked Questions

Where is this data from?
Extracted directly from the LEMON factory service manual archive. Sources are cited per generation.
What fluid capacities does a BMW i3 use?
2019-2021 BMW i3: — Refrigerant oil 1 Note: BMW Part No. 81 22 9 407 724. This oil (Refrigerant oil 1) may not be mixed with refrigerant oil Sanden SP-A2.
Why do fluid capacities vary by generation for the BMW i3?
Different engine options, transmission types, and cooling system designs across model years change total fluid volumes. Always use the capacity listed for your exact year and engine code — do not guess across generations.

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Author & Review

Published by AllOEMManuals, founded by Lyndon Bedford, an automotive technician with 20 years of experience. He owned and operated a mechanic shop in Hurst, Texas from 2014 to 2022 and continues hands-on repair work.

Content may combine manual references, general repair templates, and AI-assisted drafting. Confirm the source, vehicle configuration, and applicability before working. Report corrections through our contact page.

Last updated: 2026-10-29

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