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All-Solution LSD Unit for BMW 188L Differential
RD1011
1.849,00€1.499,00€
Transform your open differential into a real clutch-type LSD
BMW never offered a limited-slip differential for the 188L types from factory — until now. The RacingDiffs All-Solution LSD Unit brings true LSD performance to medium-case differentials such as type 188L across numerous BMW models including E81/E82/E87/E88 and E90/E91/E92/E93.
This drop-in unit replaces your factory open carrier with a fully forged, clutch-type differential core that delivers maximum traction and race-grade reliability — while staying civil on the street. It uniquely combines up to 100% lock under full throttle with zero noise or chatter in tight turns, striking the ideal balance between performance and comfort.
Features
- Plug-and-Play Installation: Direct swap for the stock open carrier — no welding, machining, or special setup required.
- Clutch-Type LSD Behavior: Smooth, progressive locking for predictable handling and superior grip in all conditions.
- Fully Serviceable Kit: Includes fully forged ramp plates, pressure rings, clutch packs, and preload springs.
- Adjustable Ramp Angles: 30/60, 30/30, 50/65 and other options for street, track, or drift setups.
- Fully Forged Construction: Every internal and external component is fully forged and thermally treated for maximum strength and longevity.
Performance Benefits
- Eliminates the one-wheel-spin problem permanently.
- Maximum traction and perfect corner-exit control.
- 100% lock on demand with silent, seamless operation in sharp turns.
- Improved stability, lap times, and driver confidence.
- Ideal for drift, track days, and spirited road driving.
- Lifetime warranty and worldwide DHL Express shipping.
Technical Specs / Installation Tips
| Differential types | BMW 188L |
| Lock type | Clutch-type LSD, fully forged internals |
| Ramp options | 30/60, 30/30, 50/65 |
| Max lock | Up to 100% under full throttle |
| Carrier preload | Set to 1 Nm |
| Backlash | 0.06–0.08 mm at ring gear (measure with dial indicator) |
| Required parts | Backlash Adjustment C-Clip Set (for setting backlash & preload) + new OEM-spec side (carrier) oil seals + bearings (optional) |
- Ring-gear bolts: clean threads, apply medium-strength thread locker, and torque to 140 Nm in a star pattern.
Fitment — BMW 188L
Compatible with BMW differentials of type 188L. Ordered by chassis.
E81 / E82 / E87 / E88 — 1 Series
120d M47N2 · 116d N47 · 118d N47 · 120d N47 · 123d N47S · 125i N52N · 128i N52N / N51 · 130i N52 / N52N (Automatic) · 135i N54 (Automatic)
E90 / E91 / E92 — 3 Series
318d M47N2 · 318d N47 · 320d M47N2 · 320d N47 · 325d M57N2 · 325i N52 / N52N / N53 · 325xi N52 / N52N / N53 · 328i N51 / N52N · 328xi N51 / N52N · 330i N52 / N52N / N53 · 330xd M57N2 / N57 · 330xi N52 / N52N / N53 · 335i N54 (Automatic) · 335xi N54
E60 / E61 — 5 Series
520i M54 · 525i M54 · 530i M54 · 523i N52 · 525d M57N · 525i N52 · 525xi N52 · 530i N52 · 530xi N52 · 520d M47N2 · 520d N47 · 520i N43 · 520i N46N · 520Li N46N · 523i N52N · 523i N53 · 523Li N52N · 525d M57N2 · 525i N52N · 525i N53 · 525Li N52N · 525xd M57N2 · 525xi N53 · 528i N52N · 528xi N52N · 530i N52N · 530i N53 · 530Li N52N · 530xd M57N2 · 530xi N52N · 530xi N53 · 535i N54 (Automatic) · 535xi N54 · 540i N62N (Automatic)
E63 / E64 — 6 Series
E63 630i N52 · E63 LCI 630i N52N · E63 LCI 630i N53 · E64 630i N52 · E64 LCI 630i N52N · E64 LCI 630i N53
E65 / E66 — 7 Series
730i M54 · 730Li M54
To confirm your differential’s final-drive (gear) ratio, check the BMW parts catalog and follow this quick video guide.
