Front Assist Not Available: What It Means and How to Fix It
'Front Assist not available' shows on Volkswagen, Audi, SEAT and Škoda. It's the warning that your car's automatic emergency braking has gone offline. Sometimes it's a dirty sensor and a quick clean. Sometimes the radar needs recalibrating. This page covers what it means, what to try yourself, and when it's a workshop job.
Safe to drive, but the auto-brake is off
Front Assist is the automatic emergency braking system. While it's unavailable, the car won't brake for you if you miss a hazard ahead. Normal brakes, steering and cruise all still work, so the car is safe to drive. Treat it as a system that isn't there, leave extra room, and get it looked at.
What 'Front Assist not available' means
Front Assist is the VW Group's name for forward collision warning and automatic emergency braking. It reads the road ahead through a radar sensor behind the front grille and, on most models, a camera at the top of the windscreen. If traffic stops sharply ahead and you don't react in time, Front Assist brakes the car.
When the radar or camera can't read the road reliably, the car switches the system off and shows 'Front Assist not available'. The same radar runs adaptive cruise control, so ACC often drops out at the same moment. The warning means the safety system is offline until the fault is cleared.
Make-specific guides
Volkswagen and Audi have their own model-specific guides below. Everything else on this page applies to every VW Group car, Škoda and SEAT included.
- By makeRead more
Volkswagen
Golf, Touareg, Passat and more. Includes the towbar-wiring fault that's specific to VW.
- By makeRead more
Audi
A4, Q5, A6 and more. For when a specialist can repair the car but can't calibrate it.
Try these free fixes first
- 1
Clean the radar behind the front badge
On most VW Group cars the radar sits behind the front grille badge. Wipe the badge and the grille around it with a damp cloth. Road dirt, salt, snow or ice over the radar is the single most common cause.
- 2
Clean the inside of the windscreen
The camera that works with the radar sits at the top of the windscreen, by the rear-view mirror. Smears, dust or condensation on the glass in front of it can be enough to disable Front Assist.
- 3
Do a full key-off restart
Switch the engine off, lock the car, leave it ten minutes, then restart. A soft fault sometimes clears on a complete power-down cycle.
- 4
Drive in clear conditions
Heavy rain, fog, snow or low sun can make Front Assist switch itself off on its own. Drive ten to fifteen minutes in normal conditions and see if the warning clears.
How we fix it
When the free checks don't clear it, the radar or camera needs recalibrating. A technician realigns the sensor to the manufacturer's reference, clears the stored fault, and confirms Front Assist is back before you leave.
It's a fixed-fee job and ends with a calibration certificate. The full procedure, including the difference between static and dynamic calibration, is in our ADAS calibration guide.
Frequently asked questions
Radar calibration is a fixed £349 across our network, the same price wherever you are in the UK. It covers the diagnostic scan, the calibration, and a calibration certificate. One session covers up to three ADAS systems, so if Front Assist has dragged ACC or Side Assist offline with it, they're done together. No quote that changes after the job.
Clearing the code doesn't fix what caused it. The radar is still out of alignment, so the car runs its start-up self-check, finds the fault again, and puts the warning back. The radar has to be physically recalibrated, not just have its code erased, before Front Assist stays off the dashboard.
It happens, and it usually means one of two things. Either the calibration was done without fixing an underlying problem, like a bent radar bracket or paint sprayed over the sensor, or the procedure didn't complete correctly. A proper diagnostic scan finds which. Our accredited workshops scan before calibrating, so a hidden hardware fault is caught before you pay for a calibration that can't hold.
Yes, it's common. Plenty of good independent garages can do the mechanical repair but don't own ADAS calibration equipment, which is a separate, specialised setup. That's the gap our network fills. The repair garage does the bodywork or the part, and an accredited calibration workshop realigns the radar afterwards. You don't need a main dealer for either.
Front-end work is the trigger we see most across VW Group cars. A bumper removed and refitted, a minor knock, a badge swap, a wheel alignment, even a towbar wired in wrong. The radar sits behind the grille and the smallest shift in its aim sets the fault. Dirt or ice over the sensor does it too, and that one you can fix yourself.
The MOT doesn't test ADAS systems yet, so the warning alone won't fail the car. Insurance is the real reason to sort it. Front Assist is a safety system, and if you had a collision while it was knowingly offline, an insurer could question whether the car was roadworthy. A calibration certificate after the job is your proof it was put right.
Get Front Assist back on
Tell us your registration and what's happened. We come back with the price, the nearest accredited workshop, and the soonest slot.