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  • BMW LSD 215K / 215L – E46, E90, E60, E39 Limited Slip Differential (335i, 540i, 330d)

    RD1009

    All-Solution Limited Slip Differential (LSD) Unit for BMW 215K/L — Engineered for Unmatched Performance and Durability

    Upgrade your BMW E46, E90, E92, E60 or E39 with a high-performance 215K / 215L Limited Slip Differential (LSD) designed to eliminate one-wheel spin and deliver true power to both rear wheels. Whether you're building a drift car, track project, or simply want better traction on the street, this LSD unit transforms your driving experience with improved grip, stability, and control.

    BMW 215K/215L LSD unit offering 100% max lock with zero noise – RacingDiffs high-performance limited slip differential.

    Features
    • Fully forged construction: Both internals and housing are forged for supreme strength and durability.
    • Adjustable ramp settings: Three lock profiles to match driving style:
      • 30/30 — aggressive 2-way for drifting.
      • 30/60 — versatile 1.5-way for hill climb, rally, circuit, time attack, and new drifters.
      • 50/65 — smooth engagement for street and track days.
    • Premium clutch pack: 4 × molybdenum-ceramics clutch plates with Lifetime Warranty.
    • Optimized NVH: Correct preload + high-quality LSD oil (e.g., Ravenol Racing 75W-140) for noise- and vibration-free operation.
    • Direct fit: Engineered for BMW 215K/L differential types with 2.81 ratio and shorter.
    Performance Benefits
    • Superior traction: Maximizes drive off corners and in low-grip situations.
    • Enhanced stability: Predictable, confidence-inspiring handling at the limit.
    • Versatility: Tailor lock behavior for street, drift, hill climb, rally, and circuit.
    • High-power readiness: Forged architecture tolerates extreme torque and shock loads.
    Technical Specs / Installation Tips
    Differential types BMW 215K / 215L (2.81 ratio and shorter)
    Ramp options 30/30 (2-way), 30/60 (1.5-way), 50/65 (smooth lock)
    Clutch pack 4 × molybdenum-ceramics plates (Lifetime Warranty)
    Oil recommendation Ravenol Racing 75W-140 (or equivalent)
    Backlash target 0.08–0.12 mm on most BMW ring-and-pinion sets
    • Carrier-adjustment C-clips required: Needed to set preload and backlash correctly.
    • C-clips let you: Dial factory backlash, center the ring gear for a proper contact pattern, and eliminate whine, heat, and premature wear.
    • TIP: We stock complete C-clip packs in 0.1 mm increments for precise setup.
    • Watch before you wrench: Our 13-minute installation video covers bearing pressing, backlash measurement (dial indicator), C-clip selection, and contact-pattern checks with marking compound.
    Fitment
    • E82: 135i N54 (manual transmission)
    • E46: 330d (automatic transmission)
    • E90 / E91 / E92 / E93: 335d, 335i, 335xi
    • E39: 530d (automatic), 540i, 540iP
    • E60 / E61: 540i, 545i, 550i
    • E63 / E64: 645Ci, 650i
    • E38: 740i, 740iL, 750i, 750iL
    • E65: 730d, 735i, 740d, 745d, 745i, 750i, 760i
    • E53: 4.8is
    • E52: Z8

    *If your exact year/market is not listed, contact us to confirm 215K/L compatibility (2.81 and shorter ratios).

     

    *Due to continued product improvement, the product illustrated in photos may vary slightly from the actual product.

    Compatible with a wide range of BMW models including E46 330i, E90 335i, E92 335i, E60 530d, E39 540i, and other vehicles equipped with 215K or 215L differentials. Ideal upgrade for drifting, track days, drag racing, or performance street use.