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E311 and E611 carry heavy truck traffic moving at 120 km/h or more, and the hard shoulder is one of the most dangerous places in the country to stand. If a tyre lets go, do not stop in a live lane and do not stop on a left-hand shoulder if you can possibly avoid it. Signal early, ease across to the right, and keep rolling on the flat, slowly, hazards on, until you reach an exit, a petrol station or at least a wide section of shoulder well clear of a bend or an on-ramp. A destroyed tyre costs a few hundred dirhams; the alternative risk is not comparable.

Then decide honestly whether to change the wheel yourself. On a quiet street, changing a tyre is a fifteen-minute job. On the E311 shoulder with trucks passing an arm's length away, it is work for someone with a liveried vehicle, cones and practice, and a traffic-side rear puncture should almost never be a DIY job there. A callout to fit your spare typically runs AED 150-250, and many vendors can plug a simple tread puncture on the spot or bring a matching tyre for more. Modern cars with no spare at all, an increasing share of the market, take the decision out of your hands: you are booking a callout or a tow either way.

Running dry is more common in the UAE than drivers admit, partly because distances between stations on newer stretches of E611 and the E65 towards Ras Al Khaimah are longer than the fuel gauge suggests, and partly because a digital range estimate collapses fast when the AC is working against 45-degree heat. Emergency fuel delivery is a standard roadside product: a vendor brings petrol or diesel in approved containers, typically 10-20 litres, enough to reach a station. Expect AED 150-300 including the fuel for a normal city or highway delivery, more late at night or far from town.

Two mechanical notes worth knowing. First, on a modern petrol car the fuel pump sits inside the tank and is cooled and lubricated by the fuel around it, so repeatedly running the tank to the last litre in summer shortens the pump's life; treat a quarter tank as empty from June to September. Second, after a true run-dry, the car may need several cranking cycles to re-prime, and some diesels will not self-prime at all, in which case the fuel delivery becomes a fuel delivery plus a technician. Say what the car is when you book so the vendor arrives prepared.

Once stopped, the rule that protects you from a hospital visit: never open the radiator or coolant reservoir cap while the engine is hot. The system is pressurised and the escaping steam and coolant are well above 100 degrees. Let it cool for a genuine half hour. A roadside technician attending an overheating call, typically AED 200-400, will check for the visible causes: a split hose, a failed fan, a leaking radiator seam, low coolant with no obvious leak. A top-up and a fan diagnosis can put a mildly overheating car back on the road to a workshop under its own power, driven gently in the cool part of the evening.

What a kerb-side visit cannot fix is the damage overheating causes when ignored: a warped head or failed head gasket from driving on while the needle sat in the red. White exhaust smoke, coolant in the oil showing as a milky residue under the filler cap, or continuous bubbling in the reservoir are the signs the engine has crossed that line, and at that point the correct spend is a flatbed, not more coolant. This is the scenario where a cheap decision, driving one more exit, becomes a five-figure engine bill.