If you notice your car pulling sharply to one side, feel a thumping vibration through the steering wheel or hear a slapping sound from a wheel — you likely have a flat tyre. Do not brake suddenly. Ease off the accelerator gently, keep both hands on the wheel and steer gradually towards the nearest safe stopping point. Hazard lights on immediately. In Cardiff, aim for a side street, car park or wide pavement away from moving traffic.
Once safely stopped, assess the damage before doing anything else. If you are on a live A-road or the M4 near Cardiff, do not attempt to change the tyre yourself — call Royal Mobile Tyres Cardiff on 029 22714889 immediately. Our mobile tyre technicians are trained for safe roadside working and will arrive with the correct replacement tyre. If you are in a safer location and have a serviceable spare, you may change it — but ensure the vehicle is fully off the road and on level ground first.
Never drive on a flat tyre in Cardiff, even at low speed. Even 100 metres on a completely flat tyre can destroy the tyre's internal structure and damage the wheel, turning what might have been a simple puncture repair into a costly tyre and possibly wheel replacement. Call 029 22714889 the moment you suspect a flat — we cover all of Cardiff and surrounding areas 24 hours a day.