When ordering auto parts or studying technical documentation for foreign cars, owners often encounter English terminology, which can confuse even an experienced motorist. Phrase rear left translated into Russian literally as “left rear”, however in the context of the automotive industry this definition requires clarification of the reference point. Misinterpreting the side may result in purchasing the wrong part, such as a door or fender, that is physically impossible to install on the other side of the body.
The key point here is the standard of identification of parties adopted by most automakers in the world. The side of the car is always determined in the direction of travel, that is, as if you were sitting in the driver's seat and looking forward through the windshield. Therefore, rear left - this is the left side of the car from the rear, when viewed from the passenger compartment, or the left side from the point of view of the driver behind the wheel.
Understanding this logic is critical when working with electronic parts catalogs, where abbreviations may not be obvious. An error in identifying the party often causes product returns and wasted time, especially if the part is ordered from abroad and cannot be replaced. Therefore, knowledge of the exact translation and rules for positioning body elements is a basic skill for any owner of a modern car.
Exact translation and semantic meaning of the term
Parsing the phrase rear left by components, we get a clear picture of the location of the element. Word rear means "rear", "rear" or "behind". In an automotive context, it always refers to the rear of a vehicle, be it an axle, bumper, taillight or door. This is the opposite of the word front, indicating the front.
Second word left, translated as “left”. In combination with rear a stable technical designation is formed RL (Rear Left). In Russian-language catalogs and manuals this corresponds to the designation “LZ” or the full phrase “left rear”. It is important not to confuse this with a mirror image, since in English documentation the sides are rigidly tied to the centerline of the car.
The term Rear Left always means the left side of the car when viewed from the interior in the direction of travel, regardless of the location of the steering wheel.
It is worth noting that in some specific cases, for example, when describing the location of sensors or wiring, qualifying adjectives may appear. However, the basic body geometry remains unchanged: rear left - This is always the left rear corner of the car. Knowing this allows you to quickly navigate diagrams where parts are numbered or marked with letter codes.
Left and right hand drive problem: LHD and RHD
The most common cause of confusion occurs when ordering spare parts for right-hand drive vehicles (Right Hand Drive or RHD), which are often imported from Japan or the UK. Owners of such cars in countries with left-hand traffic (or vice versa, when driving to countries with right-hand traffic) may mistakenly believe that the sides of the body are “mirrored” along with the steering wheel.
This is a fundamental misconception. Body geometry, location of doors, headlights and rear left elements does not depend on which side the steering column is located. Left side of the car (Left) always remains on the left, no matter where the driver sits. If you order a rear left fender for Toyota Camry with a right-hand drive, you need the left side in the direction of travel, not the driver's side.
Manufacturers often use codes in technical documentation LHD (Left Hand Drive) and RHD specifically to indicate modifications to the steering, but not to change the numbering of body panels. Therefore, seeing in the catalog Rear Left Door, you should choose the door that is on the left rear, even if your steering wheel is on the right.
⚠️ Warning: Never order body parts based on the driver's side. For rear left Always ignore the position of the steering wheel and focus strictly on the direction of movement of the car.
Designations in spare parts catalogs and diagrams
In international catalogs such as Toyota EPC, BMW RealOEM or Elcats, abbreviations are used to save space. Understanding these abbreviations is necessary for the correct selection of parts. The most common spellings used are the following, denoting the same part of the car:
- 🚗 RL - standard abbreviation for Rear Left.
- 🚙 L/R - sometimes used in a pair where L means Left, but in the context of an axis it can be confusing, it is better to check the diagram.
- 🚜 2nd Row Left - a designation for minivans and SUVs, indicating the left side of the second row of seats or doors.
- 🚐 Left Rear is an inversion of the words, meaning the same as Rear Left.
When searching in catalogs, it is also important to pay attention to item numbers. Often the parts on the right and left sides have different part numbers, distinguished by the last number or letter. For example, if the right tail light has a number ending in ...10, then left (rear left) may have a number ...20 or ...11.
How to read body diagrams?
In diagrams, the body is always shown in a projection from above or from behind. The upper part of the diagram is the front of the car (Front), the lower part is the rear (Rear). The left side of the diagram corresponds to the left side of the car (Left), the right side corresponds to the right side (Right).
Some manufacturers use color coding or symbols in their diagrams to distinguish the sides. In such cases, the legend to the diagram will necessarily indicate what this or that symbol means. Ignoring these designations may result in ordering a symmetrical but incorrect part.
Location of body elements and assemblies
Term rear left applies not only to doors and fenders. It is widely used to designate suspension, braking and exhaust components. For example, rear left caliper - this is the left rear wheel caliper, and rear left shock absorber - shock absorber on the same side.
It is important to understand that some parts may be universal for the left and right sides, but have specific mounts or sensors on only one side. For example, a brake pad wear sensor is often installed only on rear left or only on rear right, depending on the car model. Therefore, when ordering brake pads or discs, you must refer to the diagram.
| Component (English) | Translation | Location | Nuances |
|---|---|---|---|
| Rear Left Door | Left rear door | Left side, rear | Depends on body type (sedan/hatchback) |
| Rear Left Fender | Left rear fender | Above the left rear wheel | Often a part of the body that is not removable |
| Rear Left Bumper | Left side of rear bumper | Rear corner left | Rarely sold separately from bumper |
| Rear Left Axle | Left rear axle shaft | Transmission, left | Important for all-wheel drive |
When working on exhaust system components such as a muffler or resonator, the side rear left may indicate where the exhaust pipe exits. In some sports models, the exhaust may be asymmetrical, and mixing up the sides when ordering a nozzle will be a fatal mistake.
Practical tips for party identification
If you are in a garage or parking lot and are unsure which side is rear left, use a simple algorithm. Stand behind the car with your back to it and look at the trunk. The side that is to your left will be the right side of the car (Rear Right), and the side to your right is left (Rear Left). This works because you're looking at the car from the front (in terms of it moving backwards), but to the car it's the rear.
However, in order not to get confused in the mirror image, it is better to use the “from the driver” method. Go to the driver's seat (regardless of where it is located) and sit or stand as if you were driving a car. Look to the left through the window. Everything that is in this direction behind is rear left.
☑️ Check before ordering spare parts
Another reliable way is to look at the gas tank flap. On many cars it is located on one of the rear sides. If the documentation indicates that the hatch is located on the side rear left, then this will help you navigate. Although this is not a universal method, since the location of the hatch varies.
Common mistakes when ordering and purchasing
One of the most expensive mistakes is ordering glass. If you ask for glass rear left, and the seller will understand this as "driver's side" on a right-hand drive car, you will receive the wrong glass. Glasses have complex geometry and are not symmetrical. An error here will result in installation failure.
The sides are also often confused when ordering rear view mirrors. Although the mirrors themselves may be identical, their mountings and electrical connections are often mirrored. Rear left mirror will have fastenings oriented to the left side, and it will not be possible to move them to the right side without a “collective farm”.
⚠️ Attention: When ordering optics (headlights and flashlights), there is an error on the side (rear left instead of rear right) makes the part completely useless, since the light distribution and fastenings will be turned in the opposite direction.
Using VIN code car when ordering. Parts store managers and automated selection systems use the VIN to accurately determine the configuration of your vehicle, including where the parts are located. Always provide this code when ordering body parts.
What should I do if the part has already been ordered from the wrong side?
If you discover an error before installation, please contact your retailer immediately. Many stores are willing to help and replace the part, especially if it has not been used. If the part is already installed, it will be almost impossible to return it as it is considered a used item. In the case of bodywork, sometimes you can repaint the part to match the color of the car, but the geometry will remain the same.
Can rear left mean the right side on cars from England?
No, it's a myth. Body side terminology (Left/Right) is standardized by international organizations (ISO, SAE) and is tied to the direction of travel of the vehicle, and not to the driver's side. A car from England, Japan or Australia will have rear left in the same place as the American or German one - on the left side in the direction of travel.
How is rear left indicated on electrical diagrams?
Electrical diagrams often use abbreviations. Rear Left can be designated as RL, L/R (in the context of rear), or simply an index L at the end of the component number (for example, Lamp_L). Color coding of the wires may also be used, where, for example, the blue wire may go to the left side and the red wire to the right, but this depends on the specific manufacturer.
Does the year of manufacture affect the translation of rear left?
The term itself rear left does not change its meaning over the years. However, the body design may change. For example, the 2010 model may have a removable rear left fender, while the 2015 model may have a welded one. Therefore, when ordering, it is important to take into account not only the translation, but also the year of manufacture of the car indicated in the VIN code.
Where else is the term rear left found?
In addition to body parts, this term is found in the description of tires (when indicating wear), brake discs, wheel bearings, suspension elements (levers, silent blocks), as well as in parking systems (sensors) rear left). Insurance policies also use this terminology to record damage when describing road accidents.