February 2026
What to Do If Your Car Breaks Down on the A303
A step-by-step guide to staying safe and getting recovered on one of the South West's busiest roads.
The A303 is one of the busiest roads in the south of England. It runs from the M3 near Basingstoke all the way to Honiton in Devon, carrying millions of vehicles a year. commuters, holiday traffic, lorries, and military convoys heading to and from Salisbury Plain. The stretch near Salisbury and Stonehenge is notorious for congestion, and it's one of the most common breakdown spots in Wiltshire.
If your car breaks down on the A303, safety comes first. The traffic moves fast, and on the single-carriageway sections there's often no hard shoulder. Knowing what to do before it happens makes a real difference. Here's our step-by-step guide.
Step 1: Stay Calm and Get Off the Road
As soon as you notice a problem. warning lights, strange noises, loss of power, steam from the bonnet. indicate left and pull over as far as you safely can. On the dual carriageway sections of the A303, try to reach the hard shoulder or a layby. On single-carriageway sections, pull onto the verge as far from the traffic as possible.
Turn on your hazard lights immediately. This alerts other drivers to your presence and significantly reduces the risk of a collision.
Step 2: Exit the Vehicle Safely
Once you've stopped, get out from the side away from traffic. That usually means the passenger side (left side). If you've got passengers, make sure everyone gets out the same side. Move well away from the vehicle and the road. If there's a barrier, stand behind it. If not, get as far from the carriageway as you can and stand on higher ground if possible.
Don't try to do repairs at the roadside on the A303. The traffic's too fast and the risk is too high. Even changing a tyre on a busy road like the A303 is extremely dangerous.
Step 3: Make Your Vehicle Visible
If it's safe and you've got one, place a warning triangle at least 45 metres behind your vehicle on the same side of the road. But don't use a warning triangle on a motorway or motorway-style section. The risk of getting hit while placing it is too high. Your hazard lights should be enough in most cases.
If you've got a high-vis jacket or vest, put it on. It makes you much more visible to passing traffic, especially at night or in bad weather.
Step 4: Call for Help
Call a local recovery company like NC Recovery on 01722 466784. When you call, have these ready:
- Your exact location. use road signs, mile markers, landmarks, or a GPS/what3words location from your phone
- Your vehicle make, model, colour, and registration number
- A description of the problem (what happened, any warning lights, noises, or smells)
- How many people are with you
- If you feel safe where you are
If you're in immediate danger. for example, your vehicle's blocking the carriageway and you can't move it. call 999 first and ask for police, then call for recovery.
Step 5: Wait Safely
Stay well away from the vehicle and the road while you wait. Don't sit in the car, even if it's cold or raining. Vehicles stopped at the roadside on fast roads like the A303 are at risk of being hit from behind, and being inside when that happens is extremely dangerous.
Keep your phone charged and available. If the recovery company calls you back with an update or to confirm your location, you need to be able to answer.
Common A303 Breakdown Spots Near Salisbury
Based on our experience, these are the most common breakdown locations on the A303 in the Salisbury area:
- The Countess roundabout at Amesbury. where the A303 meets the A345
- The Stonehenge section. slow traffic, stop-start driving, and overheating engines
- The approach from Winterbourne Stoke. A long stretch with limited places to pull over
- The Wylye Valley section. heading west toward Warminster
- The Chicklade and Mere section. hilly terrain that puts extra strain on engines and clutches
Why Local Recovery is Faster Than National Services
Break down on the A303 near Salisbury and a national company might send someone from Southampton, Swindon, or even further away. That could mean waiting an hour or more. We're based locally in Salisbury. We know the A303 inside out. every junction, every layby, every access point. We can usually get to you much faster.
Local knowledge also means we know the best routes to reach you even when the A303 itself is gridlocked. We know the back roads, the alternative approaches, and the safest places to load your vehicle. Someone coming from another county can't offer that.
Be Prepared
The best way to deal with a breakdown is to be ready before it happens. Keep a high-vis vest, a phone charger, a torch, and a bottle of water in your car. Make sure your breakdown cover's up to date, or save NC Recovery's number. 01722 466784. in your phone so you can call us when you need to.
Regular vehicle maintenance also reduces the risk of breakdowns. Check your tyres, oil, coolant, and battery regularly, especially before long journeys on the A303.
Need Help Now?
If you're broken down on the A303 right now, call NC Recovery on 01722 466784. We provide 24/7 breakdown recovery, car recovery, and roadside assistance across the A303 and all surrounding areas. Fully insured, local, and fast.