What does the KW HLS 4 Lift System for B9 Audi do?

It raises the front and rear axles of the B9 Audi RS5, S5 Premium and S5 Premium Plus by 30 to 45 mm at the press of a button, so driveways, ramps and speed humps stop scraping. A hydraulic cylinder sits between the spring perch and the main spring and expands on demand, then returns the car to its set ride height.

Does this kit fit a car on factory dampers?

No. This part number is the version built to mount onto KW coilover hardware, so the coilover kit has to be fitted first or bought alongside it. KW builds a separate HLS version for cars still running the original factory suspension, and the two are not interchangeable.

How much lift does the Lift System for B9 Audi give?

The system provides 30 to 45 mm of additional clearance, roughly 1.2 to 1.8 inches, on both axles. That is enough to clear the ramps, driveways and speed humps that catch a lowered car, and the vehicle returns to its chosen ride height once the system is released.

Can the car be raised while it is moving?

Yes. Height is changed from a keychain transmitter and works with the car stationary or moving at up to 80 km/h, roughly 50 mph. Above that speed the control unit lowers the car automatically so the aerodynamic balance is not disturbed at speed.

Where does the hydraulic pump mount?

The pump installs in or near the spare wheel location. Because the system is commanded by a keychain transmitter, no extra wiring has to be routed through the cabin to a dashboard switch, which keeps the installation contained and reversible if the car is ever returned to standard.

Is the HLS 4 made by KW in Germany?

Yes. KW develops and manufactures the Hydraulic Lift System at its headquarters in Fichtenberg, Germany, alongside the coilover systems it is designed to work with. KW has built suspension there since 1995 and supplies vehicle manufacturers, professional tuners and race teams worldwide.

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Description

KW HLS 4 Hydraulic Lift System for B9 Audi RS5, S5 Premium and S5 Premium Plus with KW Coilovers

KW’s HLS 4 Lift System for B9 Audi RS5, S5 Premium and S5 Premium Plus solves the one problem a lowered car creates for the person who actually drives it: the driveway, the parking ramp and the speed hump that a fixed ride height cannot negotiate. Developed and built by KW in Fichtenberg, Germany, the system places a hydraulic cylinder between the spring perch and the main spring and expands it on demand, adding 30 to 45 mm of clearance at both axles in seconds. It is commanded by a keychain transmitter, works with the car standing still or rolling at up to 80 km/h, and returns the car to its chosen height automatically once speed rises past that point. For an owner unwilling to compromise the stance of a B9 Audi RS5, S5 Premium and S5 Premium Plus to accommodate the road in front of it, this is the answer.

How It Works

With the Lift System for B9 Audi fitted, a hydraulic cylinder unit sits between the spring perch and the main spring at both axles. When the system is activated the cylinder expands and lifts the car; when it is released the car settles back to its set height. The pump mounts in or near the spare wheel location and is commanded by a small keychain transmitter, so no additional wiring has to be routed through the cabin. The electronic unit lowers the car automatically once road speed passes 80 km/h, which keeps the aerodynamic balance intact at speed.

Features

The Lift System for B9 Audi adds 30 to 45 mm of clearance on demand
Keychain transmitter operation with no cabin wiring required
Operates with the car stationary or moving at up to 80 km/h
Automatic return to set ride height above 80 km/h
Hydraulic pump mounts in or near the spare wheel location
Built for cars already running KW coilovers
Developed and manufactured in Fichtenberg, Germany

Specifications

Lift range of the Lift System for B9 Audi: 30 to 45 mm (1.2 to 1.8 in)
Axle coverage: front and rear axles
Maximum operating speed: 80 km/h (approximately 50 mph)
Control: keychain radio transmitter
Base suspension required: KW coilovers
Shipping weight: 44.9 lb
Ride height adjustment: front 0.2 to 1.0 in, rear 0.2 to 1.0 in below factory

Applications

Audi RS5: B9 | 2018-2024 | 2.9L V6
Audi S5 Premium Plus: B9 | 2018-2024 | 3.0L V6
Audi S5 Premium: B9 | 2019-2024 | 3.0L V6
Audi S5 Prestige: B9 | 2018-2024 | 3.0L V6

Notes

The HLS 4 raises both axles.
This is an upgrade for a car already fitted with KW coilovers. It mounts to the existing KW coilover units and is not a suspension system in its own right, so it will not fit a B9 Audi RS5, S5 Premium and S5 Premium Plus running factory dampers. The matching coilover kits are KW V3 Coilover Kit for B9 Audi RS5 and S5 (352100BS) and KW V4 Coilover Kit for B9 Audi RS5 without DRC (3A7100BS).
The system carries hydraulic pressure and requires bleeding after assembly, so professional installation is recommended

Frequently Asked Questions

What does the KW HLS 4 Lift System for B9 Audi do? It raises the front and rear axles of the B9 Audi RS5, S5 Premium and S5 Premium Plus by 30 to 45 mm at the press of a button, so driveways, ramps and speed humps stop scraping. A hydraulic cylinder sits between the spring perch and the main spring and expands on demand, then returns the car to its set ride height.
Does this kit fit a car on factory dampers? No. This part number is the version built to mount onto KW coilover hardware, so the coilover kit has to be fitted first or bought alongside it. KW builds a separate HLS version for cars still running the original factory suspension, and the two are not interchangeable.
How much lift does the Lift System for B9 Audi give? The system provides 30 to 45 mm of additional clearance, roughly 1.2 to 1.8 inches, on both axles. That is enough to clear the ramps, driveways and speed humps that catch a lowered car, and the vehicle returns to its chosen ride height once the system is released.
Can the car be raised while it is moving? Yes. Height is changed from a keychain transmitter and works with the car stationary or moving at up to 80 km/h, roughly 50 mph. Above that speed the control unit lowers the car automatically so the aerodynamic balance is not disturbed at speed.
Where does the hydraulic pump mount? The pump installs in or near the spare wheel location. Because the system is commanded by a keychain transmitter, no extra wiring has to be routed through the cabin to a dashboard switch, which keeps the installation contained and reversible if the car is ever returned to standard.
Is the HLS 4 made by KW in Germany? Yes. KW develops and manufactures the Hydraulic Lift System at its headquarters in Fichtenberg, Germany, alongside the coilover systems it is designed to work with. KW has built suspension there since 1995 and supplies vehicle manufacturers, professional tuners and race teams worldwide.

About KW

KW automotive has developed and built suspension in Fichtenberg, Germany since 1995, and supplies coilover systems to vehicle manufacturers, professional tuners and race teams worldwide. Every KW damper is engineered in house, validated on the company’s own 7-post shaker rig and kinematics test benches, and manufactured at the Fichtenberg headquarters rather than sourced from a contract supplier. The application list runs to more than 4,600 fitments, from road cars to GT racing machinery.

Additional Information

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Shipping Policy

Items that are in stock in the US, either at Bulletproof’s warehouse or at a supplier’s warehouse, are generally delivered within 7-10 days. Special order items from overseas take considerably longer. As a courtesy Bulletproof offers delivery estimates to our customers which take into consideration manufacturer availability and shipping schedule. These estimates represent our best guess based on previous orders from the manufacturer and do not in any way imply a guaranteed delivery window. Many manufacturers work in a “just in time” inventory system and often take 2-20+ weeks to produce an item once an order is submitted. All deliverable items are then sent to our Japanese warehouse. Bulletproof ships a minimum of one full ocean freight container every month from Japan, oftentimes more than one a month. Ocean freight takes an average of 4 weeks. Typically it breaks down to one week in Japan for paperwork and customs, two weeks by boat and one week in US customs/clearance. Due to the wide number of variables between manufacturer and shipping schedules, delivery estimates are simply just that – estimates. We attempt to estimate conservatively and we usually deliver faster than our estimates suggest. It is not Bulletproof’s policy to guarantee delivery time of any special order item, this is impossible for us to do. By ordering you acknowledge that there is no required delivery ETA and an order may not be canceled or altered due to manufacturing or shipping delays, all ETA’s are provided as a best guess only. Please review the full Terms & Conditions here.

BP Pricing Difference

We do pricing a little differently on our JDM brands and we believe in making things simple and clear. No hidden fees or surcharges. Every price you see includes the shipping cost to our office in Los Angeles, California and all the associated taxes/duties/fees for bringing the products into the US. The only shipping you ever pay is from our facility in the US to your location. Be wary of resellers that don’t include the cost of international shipping in their pricing on JDM parts. While we believe we’ll always have the lowest all-in price on JDM products, we offer a price match guarantee for all authentic parts purchased from authorized dealers as well. For many international customers, it’s much more affordable to ship from the USA than from Japan directly, as the air freight and ocean freight costs are typically much less. However, for customers looking to ship directly from Japan outside of North America, or domestically in Japan, we can provide pricing specifically for that scenario. Please do not hesitate to contact us with any pricing questions or concerns. Please email us at sales@bulletproofautomotive.com with any inquiries.

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KW HLS 4 Hydraulic Lift System for B9 Audi RS5, S5 Premium and S5 Premium Plus with KW Coilovers [192104BS]

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KW HLS 4 Hydraulic Lift System for B9 Audi RS5, S5 Premium and S5 Premium Plus with KW Coilovers

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Features

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