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This AST Suspension 01/1988-12/1995 BMW 5 Lowering Springs - 40mm/40mm is a vehicle-specific lowering spring set selected by exact part number, chassis, drivetrain, body style, suspension configuration, and stated front and rear drop. Confirm every application note before ordering.
Key Features
- 40mm Drop: Reduces ride height front and rear for improved cornering stability and aggressive look without sacrificing suspension travel
- Progressive Design: Variable coil rates deliver smooth ride over bumps yet firm response during spirited drives
- Vehicle Specific: Engineered for exact fit on BMW E34 5 Series chassis ensuring proper clearance and alignment
- Premium Construction: Wound on Wafios machines from high-tensile chrome-silicon steel shot-peened for durability
- Pair with stock or performance shocks for full benefit verify shock compatibility before install
Fitment
| Years | Make | Model | Application |
|---|---|---|---|
| 1989-1995 | BMW | 525i | Base |
| 1988-1992 | BMW | 530i | Base |
| 1989-1993 | BMW | 535i | Base |
| 1992-1995 | BMW | M5 | Base |
Specifications
| Brand | AST Suspension |
|---|---|
| Manufacturer Part Number | ASTLS-14-416 |
| Product Type | Lowering Springs |
| Condition | New |
| Configuration | 01/1988-12/1995 BMW 5 Lowering Springs - 40mm/40mm |
| 40mm Drop | Reduces ride height front and rear for improved cornering stability and aggressive look without sacrificing suspension travel |
| Key Features 40mm Drop | Reduces ride height front and rear for improved cornering stability and aggressive look without sacrificing suspension travel |
What's Included
One new AST Suspension product in the exact part number, dimensions, rate, adjustment specification, and quantity identified on this page. Springs, dampers, top mounts, reservoirs, adjusters, links, tools, lines, fittings, and hardware are included only when expressly stated for this exact configuration.
About AST Suspension
AST Suspension develops performance springs, dampers, coilovers, top mounts, and motorsport suspension components. Vehicle fitment, dimensions, rates, adjustment functions, and included components remain exact-part specific.
Related Parts
- Shop the complete AST Suspension collection
- Shop suspension components
- AST 01/1988-03/1997 BMW 5 Lowering Springs - 35mm/35mm
- AST 01/1988-12/1995 BMW 5 Lowering Springs - 40mm/40mm
- AST 01/1988-12/1995 BMW 5 Lowering Springs - 50mm/35mm
Frequently Asked Questions
How do I confirm these springs fit my vehicle?
Match the exact year, make, model, chassis, drivetrain, body style, engine, factory suspension, axle-load notes, and AST part number.
Will I need an alignment after installing lowering springs?
Yes. Measure ride height after the springs settle, then perform a complete alignment and verify tire, wheel, brake-line, and suspension clearance.
Can these springs be used with factory dampers?
Only when the exact AST application permits it. Check damper condition, available travel, bump-stop requirements, and every product-specific suspension note.
Is the advertised drop exact on every vehicle?
The stated drop is a target for the listed configuration. Actual ride height can vary with equipment, vehicle weight, spring isolators, damper condition, and prior suspension changes.
Installation Instructions
- Confirm the exact AST part number, complete application or dimensional specification, included components, and current instructions before disassembly.
- Support the vehicle at approved points and record the original ride height, alignment, suspension orientation, and adjustment settings.
- Install components in the specified position and sequence using correct spring-compression, torque, preload, ride-height, and damper setup procedures.
- Verify full suspension and steering travel, tire and wheel clearance, brake-line routing, fastener torque, and damper operation.
- Settle the suspension, measure final ride height, complete a professional alignment, and recheck the installation after the initial driving cycles.
AST
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