Hyundai electrical parts and sensors in the UAE

A modern Hyundai tells you a lot before you open the bonnet. The engine, ABS and airbag systems each store fault codes, and any garage, or a cheap plug-in code reader, can read them from the socket under the dashboard. A code is the best thing you can send us after the chassis number, but it is worth knowing what it is and is not. A code names a circuit or a reading that went out of range. Often that is the sensor itself; sometimes it is the plug, a chafed wire or the part the sensor is watching.

So the order that saves money is: read the code, look at the connector and the wiring at that corner or on that cylinder, then order the part. The table lists the faults that reach us most often from Hyundai owners and the part we would expect behind each.

ABS sensors are a large part of our Hyundai electrical range, and they are also the part most often ordered wrong. Each wheel has its own sensor, and on many Hyundais the front and rear sensors differ, and so do left and right: the fit lists on our shelf include sensors made specifically for the rear left of the i30 and several Elantra versions, for example. Tell us the corner, not just the axle.

The sensor reads a toothed or magnetic ring that turns with the wheel. On some Hyundais that ring is a separate part, and we hold tone rings that the part maker lists for the i10, i20, Solaris and later Accent versions. On others the ring is built into the hub bearing, and a worn bearing or a cracked ring gives exactly the same warning light as a dead sensor. A garage can read the live speed of each wheel on a scan tool and see which one drops out.

UAE conditions are tough on these parts. The sensor and its cable live next to the brakes, in the path of sand, car-wash jets and the heat that pours off a disc after a long downhill. When a Hyundai's ABS fault comes and goes, a cracked cable or a corroded plug is as likely as a failed sensor. Remember that with ABS switched off, stability control usually switches off too, so treat the light as a job for this week, not this year.

Depending on the engine, your Hyundai has either a coil sitting directly on each spark plug or a coil pack feeding the plugs through leads. Either way the coils sit on top of a hot engine, and every drive heats and cools them again. Over time the insulation cracks, and the coil starts to leak its spark to the cylinder head instead of the plug. The first sign is usually a misfire that appears only under load, on a climb or with the AC compressor running at idle, before it becomes constant.

A garage can find the bad coil quickly by swapping it with a neighbour and seeing whether the misfire code follows it. If it does, replace that coil and check the plug it sat on, because a worn plug with a wide gap puts extra strain on the coil. On a high-mileage engine where one coil has failed, many owners change the set at once to save repeat visits, but it is not compulsory. We hold coils from FEBEST, STELLOX and genuine Hyundai; the fit lists on our shelf include the Elantra, i30, i20, Accent and Bayon among others.

Beyond ABS sensors and coils, our shelf carries the sensors the engine computer depends on. Oxygen sensors measure what is left in the exhaust so the computer can trim the fuel mixture; most engines have one before the catalytic converter and one after, and they are different parts. Crank and cam position sensors tell the computer where each piston is, so a failed one can stop the engine starting at all, often when it is hot. We also hold other engine sensors, such as throttle position and oil temperature sensors, for some models, and most of the lines in that group are genuine Hyundai.

Fuel pumps on our shelf are electric in-tank pumps, listed for versions of the Accent and the Elantra. Starters and alternators are a thinner part of the range, and the ones we hold are mainly for older Accent, Elantra and i30 versions. For a newer Hyundai, send the chassis number and we can price a starter or an alternator on request rather than leave you guessing.

Where we hold a part type in both forms, ignition coils for example, ask for both prices for your exact part on the same chat and compare them side by side for your own car.

Our advice runs by part. An ABS sensor is a simple pickup with a cable, and a correctly specified aftermarket sensor is a sound choice; if you would rather fit a genuine Hyundai sensor, ask and we price one on request. Ignition coils work well from either side, and the price gap decides it for many owners. Oxygen sensors are where we lean towards genuine Hyundai when it is available, because they feed the fuel mixture continuously and a slightly lazy sensor shows up as fuel use and a returning engine light rather than an obvious failure.

Whichever you choose, the chassis number decides the part number. Market versions of the same model can differ in engine and emissions equipment, so a GCC Hyundai and a US import of the same year do not always take the same sensor, coil or pump. A photo of the old part's label, if you can reach it, helps us confirm the match.