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BMW LSD 188LW – F20, F30, 135i, 335i, 340i Limited Slip Differential Upgrade
RD1017
1.849,00€1.599,00€
Transform your open differential into a real clutch-type LSD
Upgrade your BMW F20, F30 or other modern turbo models with a high-performance 188LW Limited Slip Differential (LSD), designed for high-torque applications with welded crown gear differentials. This upgrade transforms your factory open differential into a true traction system, eliminating one-wheel spin and delivering maximum grip, stability and control for street, drift and performance driving.
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
- 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 high-torque daily driving.
- Lifetime warranty and worldwide DHL Express shipping.
Technical Specs / Installation Tips
| Differential types | BMW 188LW (welded ring gear) |
| 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 + new OEM-spec side 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 188LW
Compatible with BMW differentials of type 188LW (welded ring gear). Ordered by chassis.
F20 / F21 — 1 Series
120d N47N · 120dX N47N · 125i N20 · M135iX N55
Facelift (LCI):
120d B47 · 120dX B47 · 125i N20 · M135iX N55
F22 / F23 — 2 Series
220d N47N · 220d B47 · 220dX B47 · 228i N20 · 228i N26 · M235iX N55
F23 Convertible:
220d B47 · 228i N20 · 228i N26 · M235iX N55
F30 / F31 — 3 Series
320d N47N · 320d ed N47N · 320dX N47N · 320iX N20 · 328d N47N · 328dX N47N · 328i N20 · 328i N26 · 328iX N20 · 328iX N26 · 335i N55 · 335iX N55 · Hybrid 3 N55
Facelift (LCI):
320d B47 · 320d N47N · 320d ed B47 · 320dX B47 · 320i B48 · 320iX B48 · 320iX N20 · 328d N47N · 328dX N47N · 328i N20 · 328i N26 · 328iX N20 · 330e B48X · 330i B48 · 340iX B58
F34 / F35 — 3 Series GT / Long Wheelbase
F34: 320d N47N · 320d B47 · 320dX N47N · 320dX B47 · 320iX N20 · 328i N20 · 328i N26 · 328iX N20 · 335i N55 · 335iX N55
F35: 328Li N20 · 335Li N55
F32 / F33 / F36 — 4 Series
420d N47N · 420d B47 · 420dX N47N · 420dX B47 · 420i B48 · 420iX N20 · 420iX B48 · 428i N20 · 428i N26 · 428iX N20 · 428iX N26 · 430i B48 · 435i N55 · 435iX N55 · 440iX B58
F33 Convertible:
420d N47N · 420d B47 · 420i N20 · 420i B48 · 428i N20 · 428i N26 · 430i B48 · 435i N55 · 435iX N55 · 440iX B58
F36 Gran Coupé:
420d B47 · 420dX B47 · 420dX N47N · 420i B48 · 420iX N20 · 428i N20 · 428i N26 · 430i B48 · 435i N55 · 435iX N55 · 440iX B58
To confirm your differential’s final-drive (gear) ratio and housing type, check the BMW parts catalog and follow this quick video guide.
Compatible with BMW F20 135i, F20 140i, F30 335i, F30 340i and other models equipped with 188LW differential. Ideal upgrade for turbocharged BMW engines, drifting, track use and eliminating one-wheel spin in high-power applications.
