6-Piece Silicone Coolant Hose Kit BMW E36 M3 3.0 S50B30 - REDOX

Product Definition and Technical Specifications

The REDOX silicone hose kit for BMW E36 M3 3.0 S50B30 represents an optimal cooling solution for this iconic engine developed by BMW M GmbH. This 6-piece kit completely replaces the original rubber coolant hoses that equipped the BMW E36 M3 produced between 1992 and 1995.

Manufactured from premium-grade VMQ silicone (vinyl methyl silicone), these hoses feature a 3-ply construction with 4mm wall thickness offering exceptional resistance to extreme temperatures (-50°C to +180°C) and high cooling system pressures. The reinforced multi-layer structure ensures durability far superior to original natural rubber hoses, eliminating the risks of expansion, cracking and bursting that typically occur after several years of use.

The kit includes all necessary stainless steel hose clamps for installation, guaranteeing perfect sealing and professional fitment. Available in three colors (blue, black, red), this kit installs as a direct replacement for original hoses without requiring any modifications.

Compatible Applications and Models

This hose kit is specifically engineered for the BMW E36 M3 3.0 equipped with the S50B30 engine, the naturally aspirated inline-6 cylinder powerplant developed by BMW M Motorsport GmbH. The S50B30 engine exclusively equipped European versions of the E36 M3 produced between 1992 and 1995, before being replaced by the 3.2L S50B32.

S50B30 Engine Specifications:

• Displacement: 2990 cc
• Power: 286 hp (210 kW) @ 7000 rpm
• Torque: 236 lb-ft (320 Nm) @ 3600 rpm
• Configuration: Inline-6 cylinder, cast iron block, aluminum head
• Valvetrain: DOHC 24-valve with single-VANOS (variable intake timing)
• Engine management: Bosch Motronic M3.3
• Intake system: Individual throttle bodies (ITB)

This high-performance engine requires a flawless cooling system to maintain optimal operating temperature, particularly during intensive motorsport use (track, drift, rally). REDOX silicone hoses precisely meet these increased thermal and mechanical requirements.

Compatible Models:

• BMW E36 M3 Coupe 3.0 S50B30 (1992-1995)
• BMW E36 M3 Sedan 3.0 S50B30 (1992-1995)
• BMW E36 M3 Convertible 3.0 S50B30 (1992-1995)
• BMW E36 M3 GT (1995 limited edition)

Important Note: This kit is not compatible with North American versions equipped with S50B30US engine (1994-1995) or with 3.2L S50B32 versions (1995-1999), which have different cooling circuit configurations.

Permanent Stock and Fast Delivery Advantages

REDOX maintains permanent stock of BMW E36 M3 S50B30 hose kits in its French warehouse based in Les Ulis (91). This immediate availability enables same-day shipping for all orders placed before 5 PM, with express 24-48h delivery by GLS across France and Europe.

This logistical responsiveness provides a major advantage for BMW E36 M3 owners facing urgent replacement needs following cooling system failure. Unlike original BMW parts which often require several days or weeks of supply lead time, REDOX hoses ship immediately, minimizing vehicle downtime.

Permanent stock also guarantees continuous product availability, eliminating stock-outs that can occur with alternative manufacturers producing on demand. This supply reliability is essential for automotive tuners, competition teams and demanding enthusiasts who cannot afford to wait during scheduled or emergency interventions.

Main Technical Characteristics

Material and Construction:

• Premium-grade VMQ silicone (vinyl methyl quinone)
• 3-ply reinforced structure for maximum mechanical resistance
• Wall thickness: 4mm
• Temperature resistance: -50°C to +180°C
• Pressure resistance: exceeds original specifications
• Coolant compatibility: all types (ethylene glycol, propylene glycol)

Kit Contents:

• 6 high-performance silicone hoses
• Stainless steel hose clamps (adapted quantity)
• Installation instructions (available upon request)
• REDOX lifetime warranty

Performance Benefits:

• Elimination of hose expansion under temperature
• Prevention of cracking and bursting risks
• Constant inner diameter maintained ensuring optimal flow
• Superior chemical resistance to hydrocarbons and coolant additives
• Sporty aesthetics with choice of 3 colors

Installation: Direct replacement without modification. Installation recommended during complete cooling system service (radiator, water pump, thermostat, expansion tank). Allow approximately 2-3 hours for experienced mechanic.

FAQ - Frequently Asked Questions

1. Are these hoses compatible with my 1994 BMW E36 M3?

Yes, if your E36 M3 is equipped with the European S50B30 engine producing 286 horsepower from 2990 cc. Caution: North American 1994-1995 versions with S50B30US engine have a different circuit and are not compatible with this kit. To verify, check the engine power indicated on your registration documents (210 kW / 286 hp for European S50B30).

2. What is the difference between REDOX silicone hoses and original BMW hoses?

Original hoses are manufactured from natural EPDM rubber, an economical material allowing mass production but presenting limited mechanical properties. With time and thermal cycles, rubber hardens, cracks and loses elasticity, leading to leak or burst risks. VMQ silicone used by REDOX offers superior temperature resistance, does not harden with age, better withstands high pressures and comes with lifetime warranty. The 3-ply reinforced structure ensures exceptional durability even under intensive motorsport use.

3. Does installation require modifications or specific tools?

No, this kit installs as a direct replacement (plug-and-play) for original hoses without any modifications. Required tools are limited to standard wrenches, screwdrivers for hose clamps and a drain pan for coolant. We recommend taking advantage of replacement to perform a complete circuit flush with fresh coolant and check condition of thermostat, water pump and radiator.

4. Can I choose my hose color and does it impact performance?

Yes, the kit is available in blue, black and red. Color choice is purely aesthetic and does not impact technical performance or product resistance in any way. All three colors use the same VMQ silicone formulation and same 3-ply structure. Only pigment differs. Many owners choose blue or red for a sporty appearance visible under the hood, while black offers a more discrete factory look.

5. Does REDOX lifetime warranty cover motorsport use (track, rally, drift)?

Yes, REDOX lifetime warranty covers all uses including extreme motorsport demands (circuit, rally, drift, hillclimb). REDOX silicone hoses were specifically developed to meet motorsport requirements where thermal and mechanical stresses are maximum. Warranty covers manufacturing and material defects regardless of use. However, it does not cover damage resulting from incorrect installation, accident or non-compliant cooling system modifications.

6. What is the delivery time and coverage area?

Kits ship same day for all orders placed before 5 PM from our Les Ulis (91) warehouse, France. 24-48h delivery in mainland France and 48-72h in Europe by GLS carrier with tracking. We deliver throughout the European Union. Orders outside EU possible upon request with adapted shipping costs and timeframes.

7. Can I install this kit on an E36 M3 GT or M3 Lightweight?

Yes, these special versions (M3 GT 1995, M3 Lightweight) use the same S50B30 engine and same cooling circuit as standard M3. The kit is therefore perfectly compatible. These limited editions will benefit from the same advantages in terms of reliability and increased thermal resistance.

8. Do silicone hoses resist long-life coolants (LLC) and additives?

Absolutely. VMQ silicone presents excellent chemical resistance to all coolant types: ethylene glycol, propylene glycol, organic coolants (OAT), hybrid (HOAT) and long-life. REDOX hoses are also compatible with performance additives (wetting agents, anti-corrosion) and demineralized water used in motorsport. This chemical resistance guarantees absence of material degradation over long term.