BAAN TECHNICAL GUIDE
Air Suspension Lowering Links Explained: How They Work, Install and Adjust
A complete technical guide to factory ride-height sensors, mechanical lowering links, on-car adjustment, installation, alignment and selecting the correct vehicle-specific BAAN kit.
QUICK ANSWER
What are air suspension lowering links?
Air suspension lowering links replace the fixed mechanical links between the suspension and the factory ride-height sensors. By changing the effective link length, the sensors report a different mechanical reference position to the suspension controller. The vehicle then maintains a lower static ride height without software coding, spring replacement or an electronic lowering module.
01 — FACTORY SYSTEM
How factory ride-height sensors work
A vehicle with factory air suspension uses ride-height sensors to measure the position of the body relative to the suspension. Each sensor is connected to a suspension arm or axle component by a short mechanical link.
As the suspension moves, the link rotates the sensor arm. The sensor sends this position information to the suspension control unit, which uses the compressor, valves and air springs to maintain the required vehicle height.
Suspension movement
The axle or control arm moves as the suspension compresses and extends.
Mechanical linkage
The factory link transfers that movement to the ride-height sensor.
Sensor measurement
The sensor reports the suspension position to the vehicle controller.
Height correction
The air-suspension system raises or lowers the body to reach its programmed reference position.
02 — MECHANICAL LOWERING
How BAAN Lowering Links work
BAAN Lowering Links replace the fixed factory sensor links with vehicle-specific adjustable components. Changing their effective length changes the mechanical reference seen by the ride-height sensors.
Direct replacement
The BAAN links connect to the original ride-height sensor ball studs in place of the factory links.
Adjustable link length
The central adjuster changes the distance between both ball-joint sockets.
New sensor reference
The sensor reads the selected mechanical position as its new resting reference.
Factory system retained
The original air springs, dampers, compressor, self-levelling logic and selectable suspension controls remain in use.
03 — KEY DIFFERENCE
How BAAN Lowering Links can be adjusted while installed
The BAAN central adjuster uses opposing left-hand and right-hand threads. Turning the central section changes the complete link length while both ends remain connected to the vehicle.
This turnbuckle-style construction allows the installer to fine-tune the ride height without repeatedly releasing the sockets from the factory sensor balls.
Loosen the mechanical locking nuts on both sides.
Rotate the knurled aluminium central adjuster.
Measure the resulting link length or vehicle height.
Tighten both locking nuts after selecting the final position.
Adjustment direction varies by vehicle
Lengthening a link may lower one axle on one platform, while shortening it may be required on another. Front and rear adjustment directions may also differ on the same vehicle. Always follow the vehicle-specific starting dimensions and instructions supplied with the kit.
04 — CONSTRUCTION
Materials, corrosion resistance and mechanical retention
Air-suspension sensor links are installed in an exposed underbody environment. Material selection, thread quality and socket retention are therefore central parts of the BAAN design.
- Developer
- BaanVelgen
- Development location
- Rotterdam, the Netherlands
- Production
- Precision-manufactured in Taiwan to BaanVelgen specifications
- Central adjuster
- Precision-machined aluminium with a knurled grip surface
- Thread arrangement
- Opposing left-hand and right-hand threads
- Link ends
- Corrosion-resistant stainless steel
- Ball-joint sockets
- Stainless-steel sockets connecting to the factory sensor balls
- Adjustment locking
- Mechanical locking nuts on both sides of the central adjuster
- Socket retention
- Dual metal safety-retaining clips
- Dimensional inspection
- Critical dimensions inspected using measuring equipment with a resolution of 0.001 mm
- Coding required
- No
- Installation type
- Mechanical and reversible
INSTALLATION VIDEO
Watch the BAAN Lowering Links installation guide
This video demonstrates the general installation and adjustment principle. Exact link locations, access requirements, original dimensions and adjustment directions vary by vehicle.
Installation video summary
- Park and measure the vehicle on a flat, level surface.
- Follow the vehicle-specific air-suspension lifting procedure.
- Locate the factory front and rear ride-height sensor links.
- Remove the original links without levering against the sensor arms.
- Set the BAAN links to the supplied vehicle-specific baseline lengths.
- Connect the sockets to the factory sensor ball studs.
- Install and verify all safety-retaining clips.
- Adjust both sides of each axle in equal, measured increments.
- Tighten the locking nuts after selecting the initial position.
- Lower the vehicle, allow the suspension to settle and remeasure.
- Check tyre clearance, link movement and wheel alignment.
05 — INSTALLATION
General BAAN Lowering Links installation procedure
Most installations take approximately 60–120 minutes for an experienced installer. Access, number of links and required tools differ between vehicle platforms.
Establish a baseline
Set normal tyre pressures, select the normal road suspension mode and measure from each wheel centre to the corresponding wheel arch.
Prepare the suspension system
Follow the vehicle manufacturer’s procedure for lifting or disabling automatic suspension adjustment before raising the vehicle.
Locate the ride-height sensors
Identify the factory sensor links at the relevant front and rear suspension positions.
Remove the factory links carefully
Release the original sockets while supporting the sensor arm. Never use the plastic sensor arm as a lever.
Set the initial BAAN dimensions
Use the vehicle-specific baseline measurements. Do not assume the front and rear links require the same adjustment direction.
Install the adjustable links
Seat every socket fully on its original ball stud and install the supplied safety-retaining clips.
Secure the selected settings
Verify the position and orientation of each link before tightening the mechanical locking nuts.
Settle and measure the vehicle
Lower the vehicle, reactivate the suspension if required, complete a short settling drive and repeat all four measurements.
06 — FINAL SETUP
Ride-height measurement, settling and alignment
The most accurate practical ride-height measurement is normally taken from the centre of the wheel hub vertically to the wheel-arch edge. This avoids tyre sidewall and tyre-pressure differences affecting the measurement.
- Measure the vehicle before removing the original links.
- Use the same suspension mode for every comparison.
- Work on a flat and level surface.
- Adjust the left and right sides of each axle equally.
- Make small changes rather than selecting the maximum drop immediately.
- Allow the suspension to complete its self-levelling cycle.
- Complete a short settling drive before taking final measurements.
- Check inner and outer tyre clearance.
- Check sensor-link clearance throughout normal suspension movement.
- Arrange a professional wheel-alignment check.
Lowering range is vehicle-specific
Many BAAN applications provide adjustment from close to the factory position to approximately 50 mm lower. Some vehicles have a different front or rear range. Always use the range stated on the individual product page rather than applying a universal value.
07 — COMPARISON
Mechanical lowering links versus electronic lowering modules
Both systems can change the static position of an air-suspension vehicle, but they use different methods and suit different priorities.
| Criterion | Mechanical lowering links | Electronic lowering module |
|---|---|---|
| Operating principle | Changes the mechanical ride-height sensor reference | Changes electronic sensor or controller values |
| Vehicle wiring | No added controller in the vehicle wiring | Normally connects to vehicle electronics or diagnostic systems |
| Adjustment method | Manual adjustment at the sensor links | Digital adjustment, depending on the module |
| On-car adjustment | Yes, with the BAAN opposing-thread design | Usually adjusted through software, an app or control interface |
| App control | No | Available with certain systems |
| Reversibility | Original sensor links can be reinstalled | Module can normally be removed or deactivated |
| Best suited to | A straightforward mechanical setup at a selected ride height | Owners who prioritise frequent digital height changes |
08 — INSTALLATION SAFETY
Common lowering-link installation mistakes
Using the sensor arm as a lever
Factory sensor arms can be plastic and should be supported while releasing the original socket.
Installing clips incorrectly
Every safety-retaining clip must be fully seated before the vehicle is driven.
Leaving locking nuts loose
An unsecured central adjuster can rotate and change the selected link length.
Making large adjustments immediately
Start from the supplied baseline and work in small, measured increments.
Measuring on an uneven surface
Floor angle, tyre pressure and vehicle load can produce misleading height measurements.
Choosing maximum lowering without checking clearance
A lower position reduces suspension travel and may create tyre, underbody or linkage contact.
09 — TROUBLESHOOTING
What to check when the final result is not correct
| Symptom | What to check |
|---|---|
| Vehicle sits unevenly | Confirm equal left/right link dimensions, tyre pressures, vehicle load, ground level and suspension mode. |
| Suspension warning appears | Check sensor connectors, socket engagement, retaining clips, installation orientation and whether the links are within the vehicle-specific adjustment range. |
| Link touches another component | Stop driving and correct the link orientation or selected length before operating the vehicle. |
| Height changes after installation | Allow the vehicle to settle, complete a short drive and repeat the measurements in the same suspension mode. |
| Ride feels firmer | Check whether the chosen drop has reduced available suspension travel. Consider raising the vehicle slightly. |
| Suspension modes produce unexpected measurements | Compare measurements only in the same mode and confirm that the selected link dimensions match the application instructions. |
Still unsure? Contact BaanVelgen for technical support or email info@baanvelgen.com.
10 — VEHICLE FITMENT
Vehicle-specific BAAN Lowering Links applications
BAAN Lowering Links are available for selected models equipped with the relevant factory air-suspension system. Compatibility depends on vehicle generation, suspension type and, for some applications, axle configuration.
Not every kit contains four links
Most vehicles with air suspension on both axles use a complete front and rear set. Vehicles with rear-only air suspension may require two links. Front-lift sensor correction kits are a separate product type. The exact contents are stated on each product page.
SEPARATE PRODUCT TYPE
Air-suspension lowering links versus front-lift sensor links
BAAN front-lift sensor links for vehicles such as the Lamborghini Huracán and Lamborghini Revuelto are not air-suspension lowering links.
Springs or another suspension modification determine the actual vehicle height. The adjustable front-lift links correct the sensor geometry after lowering so that the factory lifting system can operate within its intended sensor range.
11 — VEHICLE RESULTS
BAAN Lowering Links vehicle gallery
The final stance depends on the vehicle, wheel and tyre setup, factory calibration and selected link adjustment.
Porsche Taycan Sport Turismo
View BAAN Lowering Links →
BMW X5 G05
View BAAN Lowering Links →
Porsche Cayenne E3 Coupé
View BAAN Lowering Links →
Porsche Panamera 971 Sport Turismo
View BAAN Lowering Links →
Audi RS6 C8
View BAAN Lowering Links →
Mercedes-AMG GT 4-Door X290
View BAAN Lowering Links →
12 — TECHNICAL FAQ
Frequently asked questions
Can BAAN Lowering Links be adjusted while installed?
Yes. Opposing left-hand and right-hand threads allow the central adjuster to be rotated while both link ends remain connected to the vehicle. Loosen the locking nuts before adjustment and secure them again after the final setting is selected.
Do BAAN Lowering Links require software coding?
No. The lowering method changes the mechanical reference of the factory ride-height sensors. It does not require software coding or an electronic lowering controller.
Do the original suspension modes remain available?
The vehicle continues to use its original air-suspension controls, self-levelling functions and selectable modes. The system operates around the newly selected mechanical reference height. The final ride characteristics depend on the amount of lowering and the complete vehicle setup.
How much can a vehicle be lowered?
The available range is vehicle-specific. Many BAAN applications can be adjusted from close to factory height to approximately 50 mm lower. Certain models have a different front or rear range. Check the individual product page for the correct figures.
Does every kit include four links?
No. Vehicles with factory air suspension on the front and rear normally use a complete four-link set. Rear-only applications may contain two links. Front-lift sensor correction kits are also sold as separate front-axle products. The exact contents are shown on each product page.
How long does installation take?
A typical installation takes approximately 60–120 minutes for an experienced installer. The exact time depends on vehicle access, sensor location, number of links and the amount of adjustment required.
Is wheel alignment required after lowering?
BaanVelgen recommends a professional alignment check after the vehicle has settled at its final ride height. Lowering can change toe, camber and tyre clearance.
Are BAAN Lowering Links suitable for winter conditions?
The exposed link ends and sockets use corrosion-resistant stainless steel, while the central adjuster is machined from aluminium. Periodic inspection and cleaning are recommended after heavy road-salt or winter exposure.
Can the vehicle be returned to its original height?
Yes. The BAAN links can be readjusted, and the original factory links can also be reinstalled. No permanent modification to the suspension electronics is required.
Can BaanVelgen verify compatibility before ordering?
Yes. Send BaanVelgen the VIN and, where requested, a photograph of the original sensor-link installation. This allows the vehicle, chassis generation and suspension specification to be checked before ordering.
VEHICLE-SPECIFIC FITMENT
Find the correct BAAN Lowering Links for your vehicle
Browse the complete range or contact BaanVelgen with your VIN for fitment verification before ordering.