Bilstein B4 Front Shock Absorber - 19-171593

The Bilstein B4 Performance Gas Damper is engineered as a direct replacement for your original sho...

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eBay19-171593 Shock Absorber Front Fits Audi A5 Sportback Convertible Q5 By Bilstein
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AmazonBILSTEIN 19-171593 2x Shock absorber Front Compatible with AUDI A4 Avant 8K5, B8 8F0413031AA 8F0413031B BNE-H159
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AutodocBILSTEIN Shock absorber AUDI 19-171593 8F0413031AA,8F0413031AB,8F0413031B Shocks,Shock absorbers,Suspension shocks 8F0413031C,8K0413031AC,8K0413031AD
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Product Information

Full details

The Bilstein B4 Front Shock Absorber is designed for automotive enthusiasts and daily drivers looking to restore factory-fresh handling and ride comfort to their vehicles. Serving as a high-quality direct replacement for worn-out OEM dampers, this unit provides consistent damping performance and improved road stability. While it excels at matching standard ride characteristics, users should note that these shocks are sold individually, meaning you will need to purchase two units to maintain balanced suspension performance across the front axle.

All features

Model Part Number19-171593
BrandBILSTEIN

Extended Product Information

FAQs

Can I replace only one shock absorber?

It is highly recommended to replace shock absorbers in pairs per axle to ensure even damping and predictable handling.

Are these shocks adjustable?

No, the Bilstein B4 series is designed as a direct OEM replacement and does not feature adjustable damping.

Will these work with my electronic suspension system?

No, the B4 19-171593 is specifically designed for vehicles with standard passive suspension systems.

Can I use these with lowering springs?

They are compatible with mild lowering kits, but are optimized primarily for standard factory spring rates.

Do I need to perform an alignment after installation?

Yes, replacing shock absorbers alters suspension geometry, and a wheel alignment is necessary to prevent premature tire wear.

What is the warranty on Bilstein B4 shocks?

Bilstein offers a limited warranty; please check the specific terms provided at the time of purchase or on the official Bilstein website.

Troubleshooting

Visible leaking oil on the shock body

Small amounts of residue are normal during break-in, but constant dripping indicates a seal failure; the unit must be replaced.

Unusual clunking or rattling noise after installation

Check all mounting bolts for proper torque specifications and ensure the top mount or strut bearings are seated correctly.

Vehicle feels 'bouncy' or unstable

Verify that the dampers were replaced in pairs and ensure that the vehicle weight and spring rates match the intended application.

Pros and Cons

Pros

  • Restores original factory-like ride quality
  • High-quality gas pressure construction prevents fading
  • Direct fitment makes installation straightforward
  • Improves safety by reducing stopping distances and body roll

Cons

  • Sold individually, requiring two units for a complete axle refresh
  • Not intended for vehicles equipped with electronic damping control
  • Does not provide a 'performance' stiffened feel compared to sport-oriented dampers

Setup, Compatibility & Care

Installation of the Bilstein B4 should be performed by a qualified mechanic or an experienced DIYer, as it requires compressing suspension springs and potential removal of suspension arms. Ensure your vehicle does not have electronic suspension (EDC) before installation, as these are passive dampers. It is strictly recommended to replace shock absorbers in pairs (left and right) to prevent handling imbalance. After installation, a professional four-wheel alignment is strongly advised to ensure the suspension geometry is correct. To extend the life of your dampers, periodically inspect the dust boots for tears and keep the shock shafts clean of debris and road salt buildup.

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