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Design911 Design 911 supply Porsche parts, Porsche spares and Porsche accessories, to both retail and to the trade. Our Porsche product and accessory range includes brakes, exhausts, tyres, wheels and Porsche panels and interiors. https://www.design911.co.uk/images/schemaLogo.png https://www.design911.co.uk/images/schemaLogo.png https://www.design911.co.uk Facebook Instagram
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Porsche Panamera 970 MK2 (2014-2016) 970.2 Panamera S E-Hybrid V6 3.0L (416Hp) 2014-16 Brakes

Brake Fluid

Brake Fluid

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LIQUI MOLY Brake Fluid DOT 5.1 EV – 500ml. Porsche Electric & Hybrid Vehicles - 00004321082 - 21729
1
LIQUI MOLY Brake Fluid DOT 5.1 EV – 500ml. Porsche Electric & Hybrid Vehicles
LM21729
Product Information
Product Information

LIQUI MOLY Brake Fluid DOT 5.1 EV – 500ml

LIQUI MOLY Brake Fluid DOT 5.1 EV is a high-performance synthetic brake fluid developed for electric and hybrid vehicles, providing excellent braking performance, low electrical conductivity and reliable protection for hydraulic braking components.

Fits:

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  • Porsche 970.1 Panamera S Hybrid V6 3.0L 2011-13
  • Porsche 970.2 Panamera S E-Hybrid V6 3.0L (416Hp) 2014-16
  • Porsche 971.1 Panamera 4 E-Hybrid V6 2.9L 4WD 2017-20
  • Porsche 971.1 Panamera 4 E-Hybrid V6 2.9L 4WD Executive 2017-20
  • Porsche 971.1 Panamera 4 E-Hybrid 2.9L Twin-Turbo V6 Sport Turismo 2017-20
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Its glycol ether-based formulation offers high wet and dry boiling points, excellent low-temperature flow characteristics and protection against corrosion and oxidation.

Vehicle Compatibility

Suitable for electric, hybrid and conventional vehicles requiring brake fluid that meets the product's stated specifications.

For Porsche applications, including electric and hybrid models, always confirm the manufacturer's prescribed brake fluid specification before use.

What Does It Do?

DOT 5.1 EV brake fluid transfers hydraulic pressure through the braking system, allowing the brakes to operate effectively.

Its low viscosity supports fast hydraulic response in modern ABS and ESP systems, while low electrical conductivity makes it particularly suitable for electric vehicle applications.

Why Does Brake Fluid Deteriorate?

Common causes include:

  • Moisture absorption over time
  • Repeated exposure to high braking temperatures
  • Contamination during servicing
  • Oxidation and ageing
  • Reduced boiling point as moisture content increases

When Should It Be Replaced?

Replace brake fluid according to the vehicle manufacturer's service schedule.

Earlier replacement may be necessary if moisture content is excessive, the fluid is contaminated or the braking system has undergone repairs.

Checks & Application

Check the vehicle's required brake fluid specification before use.

Suitable for conventional brake bleeding equipment. LIQUI MOLY recommends using the product on its own for optimum performance and following the vehicle manufacturer's replacement intervals.

Key Features

  • Synthetic glycol ether-based DOT 5.1 EV brake fluid
  • Low electrical conductivity
  • High wet and dry boiling points
  • Excellent low-temperature viscosity
  • Suitable for compatible ABS and ESP systems
  • Corrosion and oxidation protection
  • Good compatibility with hydraulic system elastomers
  • Suitable for compatible brake and clutch systems
  • 500ml container

Specifications & Approvals

  • FMVSS 116 DOT 3, DOT 4, DOT 4 LV, DOT 5.1 and DOT 5.1 LV.
  • ISO 4925 Classes 3, 4, 5.1, 6 and 7.
  • SAE J1703 / J1704.

LIQUI MOLY DOT 5.1 EV Brake Fluid for Electric, Hybrid & Porsche Vehicles

Modern electric, hybrid and conventional braking systems require brake fluids that maintain reliable hydraulic pressure, thermal stability and compatibility with advanced braking technology.

LIQUI MOLY DOT 5.1 EV combines low electrical conductivity, high boiling points and excellent cold-temperature performance, making it suitable for vehicles requiring its specified brake fluid standards.

Design911 offers LIQUI MOLY brake fluids and vehicle maintenance products for compatible Porsche applications.



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

LM21729
00004321082

The product you are viewing cross references to these numbers
MOTUL DOT 3 & 4 Synthetic Brake Fluid - 500ml - 00004330552, 00004320366, 00004321082, 00004320209 - 102718
2
MOTUL DOT 3 & 4 Synthetic Brake Fluid - 500ml
102718
Product Information
Product Information
Motul DOT 3 & 4 Synthetic Brake Fluid - 500ml

Motul DOT 3 & 4 Synthetic Brake Fluid is a fully synthetic, advanced brake and clutch fluid designed to deliver exceptional thermal resistance and stability, ensuring reliable braking performance even under extreme conditions.

  • High Performance: Provides consistent and effective braking under the most demanding conditions.
  • Advanced Formula: Technically advanced, 100% synthetic brake fluid formulated on a polyglycol basis, suitable for all types of hydraulic brake and clutch systems that comply with DOT 4 and DOT 3 specifications.
  • Thermal Resistance: Offers exceptionally high thermal resistance and stability, with a dry boiling point of 245°C / 473°F and a wet boiling point of 158°C / 316°F.


Compatibility:

  • Mixable with other non-silicone-based DOT 3, DOT 4, and DOT 5.1 products.


Recommended Applications:

  • Suitable for all hydraulic brake and clutch systems that meet DOT 4 and DOT 3 manufacturers’ specifications.


Specifications:

  • Complies with FMVSS 116 DOT 4 and DOT 3; SAE J 1703 standards.


Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

102718
00004330552
00004320366
00004321082
00004320209

The product you are viewing cross references to these numbers
MOTUL RBF 600 DOT 4 Racing Brake Fluid Factory Line - 500ml - 100948
2
MOTUL RBF 600 DOT 4 Racing Brake Fluid Factory Line - 500ml
100948
Product Information
Product Information
MOTUL RBF 600 DOT 4 Racing Brake Fluid Factory Line - 500ml

100% Synthetic Racing Brake Fluid – DOT 4

FEATURES:

  • High Boiling Point: 312°C / 594°F
  • Application: Suitable for hydraulic brake and clutch systems.

TYPE OF USE:
Designed for all types of hydraulic brake and clutch systems that require a non-silicone synthetic fluid. Engineered to handle the extreme temperatures generated by racing brake systems (both steel and carbon) and hydraulic clutch systems. Also compatible with conventional steel disc brakes and standard hydraulic clutch actuators. Exceeds DOT 3 and DOT 5.1 standards, except for viscosity at -40°C / -40°F.


PERFORMANCE:

  • Standards: FMVSS 116 DOT 4, ISO 4925 (5.1, 4 & 3), SAE J1703
  • Thermal Resistance and Stability:
    • The MOTUL RBF 600 FACTORY LINE offers an exceptionally high dry boiling point of 312°C / 594°F, surpassing the requirements of DOT 5.1 non-silicone (260°C min / 500°F min) and DOT 4 (230°C min / 446°F min) standards, ensuring reliable braking performance even under extreme conditions.
    • Wet Performance:
      • The fluid also boasts a high wet boiling point of 205°C / 401°F, exceeding the DOT 5.1 non-silicone (180°C min / 356°F min) and DOT 4 (155°C min / 311°F min) standards. This helps maintain effective braking in wet conditions, as brake fluids like DOT 3, DOT 4, and DOT 5.1 tend to absorb moisture from the air, reducing their boiling points and increasing the risk of vapor lock. The wet boiling point is measured after adding 3% water, simulating fluid condition after one year of use.


RECOMMENDATIONS:

  • Drain Interval: Follow manufacturer recommendations and adjust based on usage.
  • Mixing: Avoid mixing with lower-performance polyglycol-based brake fluids. Do not mix with silicone-based (DOT 5) or mineral-based fluids (LHM).
  • Storage: Keep brake fluid in its original, tightly sealed container to prevent moisture absorption.
  • Handling: This product is chemically aggressive. In case of contact with skin, paint, or varnish, rinse thoroughly with water.


PROPERTIES:

  • Color: Amber
  • Viscosity at 100°C (212°F): 2.5 mm²/s
  • Viscosity at -40°C (-40°F): 1,750.0 mm²/s
  • Dry Boiling Point: 312.0°C / 594.0°F
  • Wet Boiling Point: 205.0°C / 401.0°F
MOTUL RBF 660 DOT 4 Racing Brake Fluid Factory Line - 500ml - 101666
1
MOTUL RBF 660 DOT 4 Racing Brake Fluid Factory Line - 500ml
101666
Product Information
Product Information
MOTUL RBF 660 DOT 4 Racing Brake Fluid Factory Line - 500ml

100% Synthetic Racing Brake Fluid – DOT 4

FEATURES:

  • High Boiling Point: 325°C / 617°F
  • Application: Ideal for hydraulic brake and clutch systems.

TYPE OF USE: Suitable for all hydraulic brake and clutch systems requiring non-silicone synthetic fluid. Specifically engineered to withstand the extreme temperatures generated by racing carbon and ceramic brakes while minimizing air intake for brake cooling. Also compatible with conventional brakes using steel discs and standard hydraulic clutch actuators. Exceeds the requirements of DOT 3 and DOT 5.1 standards, except for viscosity at -40°C / -40°F.

PERFORMANCE:

  • Standards: FMVSS 116 DOT 4, SAE J1703 / J1704
  • Thermal Resistance and Stability:
    • The MOTUL RBF 660 FACTORY LINE offers an exceptionally high dry boiling point of 325°C / 617°F, surpassing the standards for DOT 5.1 non-silicone (260°C min / 500°F min) and DOT 4 (230°C min / 446°F min), ensuring reliable braking performance even in extreme conditions.
    • Aerodynamic Efficiency:
      • This brake fluid enhances aerodynamic performance by reducing the need for brake cooling air scoops.
    • Wet Performance:
      • With a wet boiling point of 205°C / 401°F, this fluid outperforms the DOT 5.1 non-silicone (180°C min / 356°F min) and DOT 4 (155°C min / 311°F min) standards, maintaining effective braking in wet conditions. DOT 3, DOT 4, and DOT 5.1 fluids absorb moisture from the air, lowering their boiling points and increasing the risk of vapor lock. The wet boiling point is measured after adding 3% water, simulating the fluid's condition after one year of use.


RECOMMENDATIONS:

  • Drain Interval: Follow manufacturer recommendations and adjust based on usage.
  • Mixing: Avoid mixing with lower-performance polyglycol-based brake fluids. Do not mix with silicone-based (DOT 5) or mineral-based fluids (LHM).
  • Storage: Store brake fluid in its original, tightly sealed container to prevent moisture absorption.
  • Handling: This product is chemically aggressive. In case of contact with skin, paint, or varnish, rinse thoroughly with water.

    PROPERTIES:
  • Color: Amber
  • Viscosity at 100°C (212°F): 2.6 mm²/s
  • Viscosity at -40°C (-40°F): 1,698.0 mm²/s
  • Dry Boiling Point: 325.0°C / 617.0°F
  • Wet Boiling Point: 205.0°C / 401.0°F


MOTUL RBF 700 DOT 4 Full Synthetic Brake Fluid - 500ml - 109452
2
MOTUL RBF 700 DOT 4 Full Synthetic Brake Fluid - 500ml
109452
Product Information
Product Information
MOTUL RBF 700 DOT 4 Full Synthetic Brake Fluid - 500ml

MOTUL RBF 700 Racing Brake Fluid is a high-performance brake fluid specifically engineered to deliver consistent and maximum braking power, even under the extreme temperatures generated by carbon and ceramic racing brake disc systems. Its formulation allows for minimized air vents in the brakes, improving aerodynamic efficiency. It is also compatible with conventional steel discs and can be used in clutch system actuators. Meeting DOT 4 standards, the RBF 700 is suitable for high-performance vehicles, including those used in everyday road applications.


PERFORMANCE:

  • Standards: FMVSS 116 DOT 4
  • Thermal Resistance and Stability:
    • The MOTUL RBF 700 FACTORY LINE boasts an exceptionally high dry boiling point of 336°C / 637°F, surpassing all conventional brake fluids, including DOT 5.1 (260°C / 500°F min) and DOT 4 (230°C / 446°F min). This ensures reliable braking performance even under the most extreme conditions.
    • Aerodynamic Efficiency:
      • Enhances aerodynamic performance by reducing the need for large air vents for brake cooling.
    • Wet Performance:
      • The fluid’s wet boiling point of 205°C / 401°F exceeds the standards for DOT 5.1 (180°C / 356°F min) and DOT 4 (155°C / 311°F min) fluids, ensuring efficient braking in wet conditions. As brake fluids tend to absorb moisture from the air, their boiling points can decrease, increasing the risk of vapor lock or "spongy" braking. The wet boiling point is tested by adding 3% water to simulate this condition.

RECOMMENDATIONS:

  • Avoid mixing with polyglycol-based brake fluids. Do not mix with silicone-based (DOT 5) or mineral-based fluids (LHM).
  • Store brake fluid in its original, tightly sealed container to prevent moisture absorption.
  • Handle with care, as this is an aggressive chemical product. In case of contact with skin, paint, or varnish, rinse thoroughly with water.


Performance Friction RH665 DOT 4 Racing Brake Fluid 500ml - 025.0038, 0250038, 025.0037 - dot4, RH665
1
Performance Friction RH665 DOT 4 Racing Brake Fluid 500ml
025.0037
Product Information
Product Information
Performance Friction RH665 DOT 4 Racing Brake Fluid
500ml

This is Approved by Porsche Motorsport for there Racing.

RH665 is not the same as other Racing Brake Fluids, it has been specially formulated for racing applications. RH665 has the highest guaranteed minimum Dry Boiling Point (325°C) of any DOT 4 Brake Fluid. Typical values for RH665 are invariably higher than 325°C. A similar situation applies to Wet Boiling Point, RH665 is guaranteed to be above 195°C.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

025.0037
025.0038
0250038
025.0037

The product you are viewing cross references to these numbers
PFC Brake Fluid Bleeder Bottle - 026.0001, 0260001 - RH665
2
PFC Brake Fluid Bleeder Bottle
026.0001
Product Information
Product Information
PFC PROFESSIONAL TWIN PORT BLEED BOTTLE

The PFC Brake bleed bottle makes bleeding your brakes easy, clean and quick, even when dealing with hot fluid in the course of battle.

� Developed for competition use and can be operated by one person,

� Temperature resistant, suitable for bleeding
hot or cold fluids,

� Twin bleed enables both sides of the caliper to be bled at the same time,

� Clear hoses gives visual inspection for air bubbles in the system,

� High quality valves ensure no air enters the system.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

026.0001
026.0001
0260001

The product you are viewing cross references to these numbers
Textar Brake Cleaner removing oil, grease and dirt 500ml - 96000100
1
Textar Brake Cleaner removing oil, grease and dirt 500ml
96000100
Product Information
Product Information
Textar Brake Cleaner removing oil, grease and dirt 500ml



• brake, clutch and gear components
• starter motors and alternators
• carburetors, fuel pumps and engine components
• glass and metal surfaces before gluing

The advantages of Textar brake cleaner:
• does not destroy polystyrene
• does not contain any chlorinated solvents
• is listed with the German Federal Ministry for the EnvironmentHow to use:

Spray a thick coating on the parts to be cleaned. Allow the solvent to drip and/or evaporate. Repeat if necessary.



Find out about Textar product verification here

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

96000100
96000100

The product you are viewing cross references to these numbers
DISPLAYING 17 to 24 (of 24 products)
1 2
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About Brake Fluid

Porsche Brake Fluid | Design911 Premium Performance Fluids for Safety, Responsiveness & Braking Precision

Brake fluid is the lifeblood of your Porsche’s braking system — transmitting hydraulic pressure from the pedal to the calipers for accurate and consistent stopping power. Over time, brake fluid absorbs moisture and degrades, reducing performance and increasing the risk of brake fade or failure. Replacing brake fluid at the recommended intervals is crucial to maintaining your Porsche’s safety, control, and performance under all driving conditions.

At Design911, we supply a comprehensive range of approved brake fluids, including high-performance DOT 4 and DOT 5.1 formulations. Each product is engineered to provide superior heat resistance, corrosion protection, and hydraulic efficiency. Perfect for road, track, and restoration applications, our brake fluids ensure consistent pedal feel, optimal braking response, and long-term system reliability.

What Does Brake Fluid Do?

Brake fluid plays an essential role in ensuring your Porsche’s braking system delivers precise, powerful, and repeatable performance.

Core Functions:
• Transfers force from the brake pedal to calipers via hydraulic pressure.
• Provides smooth, consistent braking response under heat and load.
• Prevents corrosion within the braking system.
• Lubricates key hydraulic components to reduce wear.
• Maintains consistent pedal feel across varying conditions.

Using the correct brake fluid type ensures your Porsche retains its braking stability and confidence, whether on road or circuit.

Why Does Brake Fluid Degrade or Fail?

Brake fluid naturally absorbs moisture from the atmosphere — even in sealed systems — which lowers its boiling point and reduces braking effectiveness over time.

Common Causes of Degradation Include:
• Moisture contamination leading to reduced boiling temperature.
• Heat cycles causing fluid breakdown or vaporisation.
• Corrosion from impurities or aged fluid.
• Incorrect fluid mixing leading to poor hydraulic performance.
• Extended service intervals without replacement.

When brake fluid deteriorates, braking performance declines, leading to a spongy pedal feel, longer stopping distances, or even brake fade during intense use.

Why Replace or Upgrade Your Porsche Brake Fluid?

Regular fluid replacement ensures your Porsche’s braking system operates safely and efficiently. High-performance fluids provide greater heat resistance and consistent hydraulic pressure — critical for both spirited road driving and track sessions.

Key Benefits:
• Restores sharp, consistent pedal feel.
• Prevents corrosion and internal system wear.
• Raises boiling point for improved fade resistance.
• Compatible with advanced ABS and stability systems.
• Available in DOT 4, DOT 5.1, and racing formulations.
• Ideal for road, motorsport, and restoration applications.

Design911’s Porsche brake fluids are developed to meet the exacting demands of performance braking systems — delivering confidence, consistency, and control.

Highlights

• Premium Porsche brake fluid for road and performance use.
• Available in DOT 4, DOT 5.1, and race-grade formulas.
• Protects braking systems from corrosion and vapor lock.
• Ensures consistent pedal feel and braking power.
• Suitable for modern and classic Porsche models.
• Essential for safety, maintenance, and track preparation.

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