Mercedes A-Class ADAS Calibration

ADAS Systems on the Mercedes A-Class

The A-Class has evolved its ADAS configuration significantly across generations:

W176 (2012–2018):

• Active Brake Assist (radar-based AEB) – standard from 2015 facelift
• Blind Spot Assist – optional on Sport and AMG Line trims
• Attention Assist – drowsiness detection, standard across all trims
• Front radar sensor behind the front grille star badge

W177 (2018+):

• Full Intelligent Drive package available – DISTRONIC, Active Lane Keeping Assist, Active Brake Assist, Traffic Sign Assist
• Multifunction camera behind the windscreen (handles lane keeping, traffic signs, high beams)
• Active Parking Assist with PARKTRONIC on higher trims
• PRE-SAFE standard

The key difference: W176 models have a simpler ADAS setup centred on the front radar, while W177 models carry the full multifunction camera plus radar combination. Calibration requirements differ between generations – our technicians identify your A-Class generation and apply the correct procedure.

Common A-Class ADAS Faults

Error Codes C10C700 and B220600

These are the most common Mercedes A-Class ADAS fault codes we see. C10C700 indicates the front radar sensor is maladjusted – the radar behind the star badge has shifted. B220600 is a VIN coding fault on the camera system, meaning the camera module hasn't been properly coded to the vehicle after disturbance. Both codes require specialist diagnostic equipment to resolve – clearing them without recalibration means they return immediately.

After Bumper Repair

The A-Class front bumper is compact, and the radar sensor sits close to the grille badge. Even minor paintwork or smart repairs that involve removing the bumper can shift the radar enough to trigger DISTRONIC or Active Brake Assist faults. Check the error codes guide if you're seeing specific DTCs on your dashboard.

Windscreen Replacement on W177 Models

The W177 A-Class multifunction camera handles Active Lane Keeping Assist, Traffic Sign Assist, and automatic high beams. After windscreen replacement, all three systems need recalibrating – not just the lane keeping function. This is a common oversight when windscreen companies attempt but fail to complete the calibration. The same multifunction camera setup is used across Mercedes models including the E-Class and GLE.

Mercedes A-Class Calibration Pricing

Service	Price
Windscreen Calibration	£199
Radar/Sensor Calibration	£349
Collision Calibration	£349
Full System Reset	£499

A-Class owners with both radar and camera faults – like C10C700 and B220600 appearing together – typically need our £499 Full System Reset to recalibrate and properly code both systems. Single-system faults start at £199 for camera or £349 for radar.