Electrical auto side steps - short Mansory for Mercedes G-class G500 / AMG G63 W463A

Electrical auto side steps - short Mansory for Mercedes G-class G500 / AMG G63 W463A

The Mansory short electric auto side steps are a pair of motorised running boards that mount under the rocker of a Mercedes-Benz G-class W463A — both the G500 with the M176 4.0-litre V8 and the AMG G63 with the M177 hot-vee variant. They are part of the wider widebody programme catalogued under the parent assembly Mansory Carbon Body Kit for Mercedes G-class W463A G500/G63, sitting alongside the carbon mirror housings and the deeper sill trim. Owners specify the SHORT length when they want the convenience of a deployable step under the door arc only, without the expedition-style full-length plank that runs all the way to the rear wheel arch. Lower aero penalty, lighter, cleaner off-road silhouette.

Construction & Materials

Each step is a three-piece sandwich: an extruded 6082-T6 aluminium spine that takes the bending load, a cast-aluminium hinge block that pivots on twin sealed bushings, and a removable anodised tread plate with a knurled grip pattern. The actuator is a 12-volt Linak/AMP linear ram with a planetary gear reduction and a worm-locked output shaft, mounted inside an IP67-sealed housing so a creek crossing or a high-pressure car wash will not flood the motor.

• Spine extrusion: 6082-T6 aluminium, hard-anodised black or natural satin
• Tread plate: anodised aluminium with diamond-knurled grip pattern, removable for service
• Hinge block: cast aluminium with stainless pivot pins, twin sealed PTFE bushings
• Actuator: 12 V DC Linak-style linear ram, planetary gearbox, worm-locked at endpoints
• Motor housing: IP67-rated, cast alloy, gasketed, bolts to chassis rail with M8 grade-10.9
• Wiring: pre-loomed harness, OEM-style connector, integrates with the W463A door-bus CAN node
• Microswitches: dual redundant, one on each door catch, plus an end-of-travel position sensor
• Anti-pinch sensing: torque-spike detection in the actuator current curve, programmable threshold
• Weight rating: 200 kg per step (verified to TÜV-style static load), tested at full extension
• Step deployment time: ~2 seconds door-open to fully extended; retract similar

Design & Visual Function

Visually the SHORT version stops just aft of the front door opening on each side. That deliberate truncation matters for two reasons. First, the rear of the rocker stays clean — the spare-wheel-on-tailgate line of the G-Wagen flows uninterrupted into the rear wheel arch, so the eye reads the car as a high-riding off-roader rather than as a long-wheelbase limo. Second, the geometry preserves the factory departure and breakover angles. A long full-length plank can clip a rock-step or a kerb on a steep ramp; the short variant ends well inside the wheelbase and never contacts before the tyre does.

Aero penalty is measurable but small. Computational data from Mansory shows the short step adds roughly half the parasitic drag of the long version at motorway speed, mostly because there is less wetted area in the turbulent zone behind the front wheel. The retracted position is genuinely flush — the step folds up tight against the rocker with a 6-millimetre clearance gap, so the underbody airflow is undisturbed when you are cruising and the motor is asleep.

The tread plate finish is chosen to read as functional hardware rather than as decoration. The diamond knurl is deep enough to grip a wet boot, and the anodising layer is hard enough that the polishing wheel of a careless valeter will not strip the colour. Owners who want a more jewellery-like finish can spec the long-variant tread instead — that one is offered with a brushed satin face that catches showroom light differently.

Compatibility & Fitment

Designed and CAN-mapped exclusively for the Mercedes-Benz W463A generation — the 4th-generation G-class introduced in late 2018 (MY2019 onward), known internally at Mercedes as W463A regardless of whether the badge says G350d, G400d, G500, G550, or AMG G63. The pre-2018 box-shape W463 (1979–2018) is not compatible: completely different rocker geometry, different door catch electronics, no provision for the wiring harness pass-through. The W464 / W465 Gronos platform uses a separate step set with different mounting brackets — do not cross-fit.

Both LHD and RHD are supported — the harness is symmetrical and the actuator mounts mirror left-to-right. Cars already fitted with factory electric steps from the AMG package can have those swapped out using the same chassis mounting points; the harness re-uses the existing CAN node, so no recoding is needed in most cases. Vehicles without the original step provision require a small auxiliary fuse and a CAN-tap into the door-bus node — a three-hour shop job. Sunroof, off-road package, and AMG night-package trims have no impact on fitment. The steps clear OEM 22-inch and aftermarket 24-inch wheel-and-tyre packages without rubbing.

Installation & Reversibility

Allow four to six hours at a competent body shop. There is no painting and no bonding work; everything bolts to existing rocker mounting holes and the chassis rail through pre-drilled flanges. The fitter will jack the car, remove any existing rocker trim, position the step bracket against the OEM threaded inserts, torque the four M10 grade-10.9 chassis bolts to 65 Nm, route the harness up through the rocker grommet into the A-pillar, and tap the door-bus CAN at the kick panel. After that it is a matter of plugging in the actuator, calibrating end-stops via the diagnostic dongle, and running the anti-pinch self-learn cycle.

The job is fully reversible. No drilled holes, no glued brackets, no cut harnesses. Removing the steps and replacing them with OEM rocker covers takes about two hours. We recommend a Mansory-trained installer or an experienced Mercedes-AMG body shop because the CAN-bus calibration step requires the correct diagnostic interface; an unaware DIY attempt can leave the step half-deployed and trigger a fault code on the cluster.

Pairing within the Mansory G-class W463A G500/G63 programme

The short electric step is most often paired with the long variant on a sister car when an owner has two G63s in the same garage and wants the contrast — but for a single car the typical companions are the headline panels of the widebody programme. We see the SHORT step ordered alongside the Mansory carbon widebody kit, which deepens the wheel-arch and pushes the track outward, and the carbon mirror housings, which finish the side profile cleanly. Owners who want the alternative running-board geometry can compare against the long electric side steps — same actuator and CAN logic, full-length tread plate. Pick one length: the visual identity changes meaningfully.

Maintenance & Durability

Service interval is a five-minute check every six months: unfold the step manually, wipe the hinge pivots with a lint-free cloth, apply a single drop of Teflon-PTFE penetrating oil to each pivot pin, and inspect the rubber gasket on the motor housing for nicks. Avoid soaking the hinge in degreaser — citrus-based wash solvents will eventually attack the PTFE bushings if left to dwell. The anodised tread plate is rated for desert-sun UV exposure and salt-air without fading; a quarterly wipe with a pH-neutral wash shampoo is enough.

The actuator is the wear item in any electric step. Linak-pattern rams typically deliver 30,000–50,000 deployment cycles before any noticeable backlash — at four cycles per day that works out to roughly twenty years of normal use. The replacement actuator is a stocked spare and swaps in about forty minutes without removing the step from the car. Microswitches on the door catch are sealed and rated to a million cycles. The chassis bracket and tread plate effectively outlast the vehicle.

Lead Time & Warranty

Lead time is 3–4 weeks from order confirmation. Each step set is built to order in matched left/right pairs, then bench-tested for deployment time, anti-pinch threshold, and end-stop accuracy before crating. Warranty is twelve months against manufacturing defects on the actuator, the hinge mechanism, the CAN module, and the anodised finish. Wear from sand impingement, kerb strikes, or unauthorised modification of the actuator firmware is not covered.

FAQ

Q: Will the short step deploy when only one door is opened?
A: Yes — each side has independent microswitches and an independent actuator. Opening the front-left door drops only the left-side step. Rear-door opening on the same side also drops the same step (since they share the rocker). The system is logically per-side, not per-door.

Q: What happens if something is in the way of the step closing?
A: The actuator monitors its own current draw. If torque spikes above the programmed anti-pinch threshold during retract — for example a bag strap or a foot in the way — the motor reverses, drops the step, and beeps a warning at the cluster. Threshold is programmable at install.

Q: Can I fit this if my G63 already has the AMG package step?
A: Yes. The Mansory step bolts to the same chassis points and shares the OEM-style CAN connector. The original step is removed, the Mansory unit goes in, and no recoding is needed in the majority of cases.

Q: Does the short version compromise the off-road approach or departure angle?
A: No. The whole point of the SHORT length is to keep the rear of the rocker clear so the departure angle is unchanged. The breakover ramp angle is also preserved because the step ends well inside the wheelbase.

Q: How loud is the deployment?
A: Quiet. The planetary gearbox and the worm lock produce a soft mechanical hum at around 45 dB at one metre — quieter than the door latch motor itself. There is no clack at the end-stop because the actuator self-decelerates over the last three millimetres of travel.

Pairs cleanly with the carbon widebody kit and the mirror housings to finish the W463A side profile. To configure your set, message us via WhatsApp +44 7488 818 747 or write to [email protected].