BYD Sensors and Ignition Parts — One Wrong Digit, the Wrong Function

Sensors look like the easy category. Small parts, familiar names, one bolt each. On BYD vehicles they are anything but easy, for two reasons that pull in opposite directions. The first is that the European line-up mixes fully electric cars with plug-in hybrids, so a large share of the sensor families in our index describe things that only exist when there is an engine — a knock sensor needs knocking, lambda sensors need exhaust, ignition coils need spark. The second is that within the families that do exist on every car, the number density is high: four separate Abs Sensor lines, three Ignition Coil lines, three Sensor, Coolant Temperature lines, and no fitment column anywhere to tell them apart. Add one adjacent-number trap — crankshaft pulse sits directly next to camshaft position in the data — and ordering this category by description becomes a coin toss. Twenty-four lines are indexed here, and every one of them has to be bought by number.

1. The twenty-four lines, grouped

Two lines in that table are not sensors at all — Sensor O-Ring and Sensor Fitting And Protecting Elements — and they turn out to be among the most commercially important entries in the category. Section 3 deals with them.

2. Which of these only exist behind a combustion engine

This is the split that decides whether your enquiry makes sense at all. Grouped by what each family presupposes:

A battery-electric BYD has no use for anything in the left column, and quoting one of those numbers against the VIN of an electric car is a mistake the VIN check catches in seconds. The right column is different in character: a wheel-speed input is needed by the braking and stability functions on any modern car, and a temperature input is needed wherever there is a coolant circuit, whether that circuit is cooling a combustion engine, a battery pack or a drive unit. Those two families therefore straddle the whole range, which is precisely why they carry the most numbers.

Do note what that means for a mixed fleet workshop: the part you reach for most often across the range is also the part most likely to have three or four interchangeable-looking variants sitting next to it. Abs Sensor numbers 13063067-00, 13089079-00, 13640051-00 and 13640918-00 share a name and nothing else that we can see. Wheel-speed sensors are also handed by definition at the corner, and the index does not print side, so the VIN plus the number read off the old part is the only safe route.

3. The sensor is one line; the sealing around it is another

European catalogues frequently bundle the seal with the sensor. Our index does not: 10500252-00 is listed as Sensor O-Ring and 13246638-00 as Sensor Fitting And Protecting Elements. The presence of both as independent lines tells you two things.

First, ordering "a coolant temperature sensor" does not carry a seal with it unless the number says so. Three Sensor, Coolant Temperature lines are indexed — 10509783-00, 11261371-00 and 12849640-00 — and none of them is the O-ring. If the job needs both, both numbers have to be on the order.

Second, the same caution applies in reverse. Do not assume the seal is reusable, and do not assume it comes in the box. Ask for it by number, the same way you ask for the sensor.

The cleanest way to run this is to build the enquiry as a short list rather than a single line: the sensor number, the O-ring or fitting number if the job touches one, and — where the sensor sits in a masked or exposed location — whether the protective elements are wanted at the same time. Bundling them into one consignment costs nothing extra on your side and removes a second round of questions later.

4. Adjacent numbers are not related parts

The category contains a textbook example. 10506789-00 is a crankshaft pulse sensor and 10506790-00 is a camshaft position sensor — consecutive numbers, neighbouring bore locations, completely different functions. Two oxygen sensor lines, 19450537-00 and 19450540-00, are three digits apart. Nothing about the numbering tells you anything about what the part does, and nothing about the family name tells you which of its variants the car takes.

There is one useful observation available. In our own data we see these pairs sitting side by side, which is consistent with families being specified together per engine rather than being variants of one another. Mapping a number back to a specific engine is not something we infer from the sequence: application is confirmed per enquiry against the OE number and the VIN.

5. What goes into an enquiry that gets answered first time

Send four things. The VIN, which settles whether the car has an engine at all and therefore which half of the table above applies. The number printed on the sensor body, including the -00 suffix, which is part of the identifier in this format. A photograph of that label and of the sensor in position, because labels in engine bays get unreadable and position identification is worth more than a description. And whether you also want the corresponding O-ring or fitting line, so that both numbers can be confirmed together.

Where all you have is a fault description, send that plus the VIN and we will check what the number is. We do not publish circuit data or diagnostic procedures, and nothing on this page should be read as one. We confirm, part number by part number, whether we can supply it. Minimum order value is €50 per shipment; guide prices are shown on the parts pages, and trade and volume pricing on request. Typical dispatch time is confirmed on the quotation; transit depends on the shipping method you choose. If the line you need is not in the published index, send us the part number or a photo of the label, and we will check whether we can source it. Browse the electrics and sensors category, start from the BYD-compatible parts — OE reference index, or use the enquiry page.

Short answers

Do all BYD models use all of these sensors? No. Everything in the left column of section 2 — knock, camshaft, crankshaft, manifold pressure, oil pressure, exhaust pressure, exhaust gas temperature, lambda and ignition coils — presupposes a combustion engine. Check the VIN before quoting.

Why are there four Abs Sensor numbers? Because wheel-speed sensing is needed across the whole range, including the electric models, and because the index carries no fitment column to separate them. 13640051-00 and 13640918-00 share a name; we do not assume they share an application.

Does the sensor come with its O-ring? Treat it as separate. Sensor O-Ring 10500252-00 and Sensor Fitting And Protecting Elements 13246638-00 are their own listed lines.

Can I identify the sensor from a nearby number? No. Crankshaft pulse 10506789-00 and camshaft position 10506790-00 differ by one digit and do different jobs. Read the number off the part.

Will you tell me how to test it? Not here. This page covers identification and purchasing only, and no circuit data or diagnostic procedure appears on it.

Where this comes from.

The references quoted above are taken from GNSGO's own parts index for BYD vehicles — the same list at BYD-compatible parts — OE reference index. Application is confirmed per enquiry against the OE number and the VIN; the published index does not carry model-year fitment, so we do not infer it here. Model names follow the export designations listed on this page. We have not drawn on BYD's copyrighted workshop documentation, and we do not reproduce any manual or wiring-diagram pages.

This page is general information only. It is not a repair instruction, not a diagnosis of a particular vehicle, and not a substitute for professional advice. Restraint-system and high-voltage parts are outside the scope of this page. Work on high-voltage systems, restraint systems and structural repairs belongs with technicians qualified for it. Confirm the application against the VIN before ordering. Have any work carried out by a suitably qualified workshop.