ADAS Calibration for MG models

MG ADAS Systems We Calibrate

• Adaptive Cruise Control (ACC) - front radar behind the lower grille or bumper, supplied by Bosch. Bumper repairs, parking sensor replacement, or front-end collision shifts the radar aim. At 110 km/h, even 1-2mm of movement changes the braking distance calculation by metres.
• Active Emergency Braking (AEB) - works off both the windscreen camera and front radar to detect vehicles and pedestrians. Windscreen replacement is the most common trigger because the camera bracket reseats on new glass with a slightly different angle.
• Lane Keep Assist (LKA) - windscreen-mounted camera reads lane markings. Any glass work shifts the camera's field of view, so it reads ghost lanes or misses real ones until recalibrated.
• Blind Spot Detection (BSD) - rear quarter-panel radar sensors on models fitted with the full MG Pilot package. Rear-end impacts, bumper replacement, or panel work near the sensors trips BSD faults that need a full reset.

SAIC (MG's parent company) uses Bosch as the primary supplier for radar modules, ESP, and EPS systems across the MG range. This Bosch dependency means calibration requires access to VDS (Vehicle Diagnostic System), MG's proprietary scan tool platform. Aftermarket tools have limited coverage on MG models compared to European brands, which makes proper tooling a real factor in getting calibration right.

Bosch Radar Behind the Badge: MG's Hidden Calibration Challenge

Every MG with the full Pilot package runs a Bosch front radar module tucked behind the grille or lower bumper. It's the same Bosch mid-range radar family found in several Chinese-manufactured vehicles, but MG's mounting position creates a specific problem for Australian owners.

The radar sits low. Kerb strikes in shopping centre car parks, minor front-end nudges, even stone damage to the lower bumper can shift the radar bracket without leaving obvious body damage. The car looks fine. But the radar's aiming angle has moved, and ACC starts braking too early, too late, or not at all.

Bosch supplies both the radar hardware and the ESP/EPS integration. These systems talk to each other over CAN bus. When the radar aim shifts, it doesn't just affect cruise control. The AEB trigger point changes. Speed-dependent steering assistance adjusts incorrectly. The vehicle's entire dynamic safety response degrades in ways the driver might not notice until an emergency.

Calibration on MG models requires VDS to write the correct aiming parameters back to the Bosch module. Generic OBD tools can read fault codes but can't perform the guided aiming procedure. This is why so many MG owners get told "all clear" after a bumper repair, drive away with a clean dashboard, and find ACC behaving oddly three days later. The codes cleared, but the radar was never actually re-aimed.

The EV and Hybrid Factor

MG's Australian lineup is almost entirely electric or hybrid. The ZS EV, MG4, and MG3 Hybrid dominate sales. This changes the calibration conversation in two ways.

First, high-voltage battery systems mean calibration techs need to understand isolation procedures. The Bosch radar module sits near high-voltage cabling on the ZS EV. Disturbing connectors or routing during bumper work can create voltage leak faults that cascade into ADAS errors. A pre-scan before calibration catches these electrical faults so they don't get blamed on the calibration process itself.

Second, regenerative braking interacts with AEB differently than conventional brakes. When AEB fires on an EV, the system decides between regenerative and friction braking based on speed and battery state. If the camera and radar inputs are misaligned after a windscreen swap, the AEB response timing shifts. On an EV, that split-second matters more because regenerative braking force varies with battery charge level.

Industry data shows 1 in 10 vehicles arrive with undiscovered damage during ADAS calibration. On EVs, that number may run higher because high-voltage system faults create ADAS fault codes that look like calibration issues but aren't. A proper ADAS calibration starts with a full vehicle scan, not just the camera module.

Aftermarket Glass and MG: What O'Brien Needs to Know

Aftermarket windscreens are the most common cause of calibration failure across all brands. On MG models, the camera mounting bracket position and frit window printing must match OEM specifications exactly. Glass that meets regulatory markings (AS/NZS 2080, ECE R43) can still have a bracket placement that's off by millimetres, enough to make static calibration fail repeatedly.

When O'Brien or any glass company fits new glass on an MG, the camera bracket should be inspected before the calibration tech even sets up targets. If the bracket seating is off, no amount of calibration attempts will produce a valid result. The glass needs to come back out.

The calibration environment matters too. Static calibration requires a certified level floor, controlled lighting, and precise target placement. A shopping centre car park doesn't cut it. The vehicle needs to be on a flat surface with targets positioned at exact distances specified by Bosch for that radar and camera combination. Temperature plays a role - a vehicle that's been sitting in direct Australian sun can have camera lens distortion from heat that clears once the vehicle cools. Rushing the process creates a false pass.

Why MG Owners Choose ADAS Line

• MG Pilot expertise - we calibrate across the full MG range including ZS EV, MG4, HS, and MG3 Hybrid with correct VDS procedures, not generic scan tool workarounds.
• A$349 vs dealer pricing - MG dealers in Australia charge A$500-A$800+ for windscreen camera calibration. We start at A$349 for the same Bosch-spec calibration procedure.
• Qualified technicians - our team holds current qualifications for ADAS calibration across all major platforms including MG's Bosch-based systems.
• Australia-wide coverage - service centres across Australia so you're not waiting weeks for a dealer booking in the next city.
• Full pre-scan included - every MG calibration starts with a complete vehicle diagnostic scan to catch cascading faults before calibration begins.

MG Models We Cover

Model	ADAS Systems	Common Trigger	From
ZS EV	ACC, AEB, LKA, BSD	Windscreen replacement	A$349
MG4	ACC, AEB, LKA, BSD	Windscreen replacement	A$349
HS	ACC, AEB, LKA, BSD	Front bumper repair	A$349
MG3	AEB, LKA	Windscreen replacement	A$349
ZS (petrol)	ACC, AEB, LKA	Windscreen replacement	A$349
MG5 EV	ACC, AEB, LKA, BSD	Windscreen replacement	A$349

We also cover the EHS PHEV and Marvel R where fitted with MG Pilot. Coverage depends on model year and spec level - check if your MG needs calibration or request a quote with your registration details.

How MG ADAS Calibration Works

1. Get a quote - tell us your MG model and what triggered the issue. Windscreen replacement and front bumper repairs are the two most common triggers on MG vehicles. We'll confirm which calibration types your model needs.
2. Book your appointment - windscreen camera calibration takes 60-90 minutes. Radar recalibration after bumper work adds another 30-45 minutes. Full system resets covering camera, radar, and BSD run 2-3 hours depending on the model.
3. Drive away calibrated - you get a calibration certificate confirming all MG Pilot systems are operating within Bosch specification. Qualified work you can hand to your insurer or glass company.

MG ADAS Calibration Pricing

Service	Price
Windscreen Camera Calibration	from A$349
Radar/Sensor Calibration	from A$549
Collision Calibration	from A$549
Full System Reset	from A$799

MG dealers charge A$500-A$800+ for a single windscreen camera calibration. Radar work pushes the dealer bill past A$1,000 easily. Our pricing covers the same Bosch-specification procedures with qualified technicians and a calibration certificate. For collision calibration covering multiple sensors, the gap between dealer and ADAS Line pricing gets even wider. See our full pricing breakdown for all service types.