Searching for technical information on household appliances often turns into a quest, especially when you urgently need to call a technician or register the device for warranty. Owners of German equipment Bosch often encounter difficulties in identifying their model, since the markings may be located in non-obvious places. The serial number (or product number E-Nr) is the key to ordering the correct spare parts, obtaining repair advice and access to original instructions.
In this article we will analyze in detail all the possible locations of identification plates on refrigerators Bosch, explain the difference between the different types of numbers and teach you correctly read encrypted information. Understanding the structure of the codes will help you avoid mistakes when ordering components, which is especially important for complex components such as compressors or electronic control boards.
We should immediately note that the location of the label directly depends on the year of manufacture of your unit and its design features. If you are the owner of a modern model Side-by-Side or a built-in refrigerator, the search algorithm may differ from the search on a classic two-chamber device released ten years ago.
Main location of the information sticker
In the vast majority of cases, especially in models released after 2010, the manufacturer places the main identification panel on the inner wall of the refrigerator compartment. Most often this is the right side wall, located at or just below eye level, allowing easy access to information without the need to bend over or use a flashlight. This label contains all the critical information, from line voltage to refrigerant type.
Sometimes, if the right wall is occupied by shelves or a system No Frostengineers Bosch can move the label to the left wall or even to the inside of the refrigerator door. Carefully inspect the perimeter of the camera, paying attention to silver or white rectangular stickers with black text. Don't confuse them with energy efficiency labels, which are usually brighter and contain more graphics.
It's also important to check the space above the top shelves. In some modifications with the system MultiAirflow the label is hidden directly under the ceiling of the chamber or at the end of the air duct. If you don’t see the number right away, try using your smartphone’s flashlight to shine through hard-to-reach corners—the shine of the foil sticker can give away its location.
⚠️ Warning: Never try to peel off a sticker to transfer it to your passport or in a visible place. This will disrupt the integrity of the protective layer and the text will become unreadable. It’s better to just take a photo of it.
Alternative search places in old and built-in models
The situation becomes more complicated if you are the owner of an older refrigerator or a built-in model integrated into the kitchen set. In devices released before the mid-2000s, the rear outer wall of the case was considered the standard placement. To get to it, you will have to move the refrigerator away from the wall, which is not always convenient, especially if communications are already connected at the back or there is heavy furniture.
For built-in models Bosch it is typical to place a sign on the end of the door or on the inner surface of the base panel (below, near the floor). If your refrigerator is built into a niche, inspect the side ends of the door - sometimes the markings are placed there so that it is accessible without dismantling the facades. In rare cases, the manufacturer hides the number under a removable decorative panel at the bottom of the unit.
If external searches do not produce results, look inside the freezer. Although this is not a typical location for the main label, some series may have duplicate information or lot number on the inside wall of the freezer. It is also worth checking the bottom of the refrigerator, if it is possible to carefully tilt the device (while observing safety precautions). VarioCooling duplicate information or batch number may be located on the inside wall of the freezer. It is also worth checking the bottom of the refrigerator, if it is possible to carefully tilt the device (observing safety precautions).
- 🔍 The rear metal wall of the case (typical for models before 2005).
- 🔍 The inner end of the door of the refrigerator or freezer compartment.
- 🔍 Bottom part of the body, behind a decorative base or grille.
- 🔍 Removable control panel (rare, but found in the premium segment).
Structure and explanation of the product number (E-Nr)
The most important element of the marking is the product number, designated as E-Nr (or simply Nr). This is not just a random set of numbers, but a strictly structured code that carries information about the origin and characteristics of the device. The code usually consists of 10 characters separated by spaces or hyphens, for example: KGN39XI30R 01. The first letters indicate the type of device (KGN - refrigerator with freezer, KIF - built-in refrigerator).
The digital part of the code contains data on dimensions, handle design, color, type of control and even country of assembly. The last two digits after the space or period (FD) indicate the year and month of production. Understanding this structure allows you to instantly determine the age of the equipment, even if the documents are lost. This is especially useful when buying used equipment or checking repair history.
It is worth mentioning the number FD (Fabrication Date), which often follows the main model number. It is he who tells the “birth story” of your unit. Knowing how to decipher these four digits, you can accurately determine the production date, which is critical for calculating the residual life of the compressor.
What does the letter at the end of the E-Nr code mean?
The last letter in the model code (before the FD numbers) often indicates the country of sale or a specific modification for a particular distribution region. For example, the letter R may indicate a model for Russia and the CIS countries.
When ordering spare parts, such as seals, shelves or thermostats, service centers always require the full code E-Nr. Using only the series name (for example, Bosch Serie 4) is unacceptable, since dozens of different components can be used within one series.
Table of correspondence between FD codes and year of manufacture
To determine the exact production date of the refrigerator Bosch it is necessary to correctly decipher the code FD. It consists of four digits. The first two numbers require a mathematical calculation: you need to add a constant to them, depending on the decade of issue. For equipment released in the 2000s and 2010s, 20 or 10 are usually added to the first two digits, respectively, but the system can be confusing.
Below is a table that will help you quickly navigate. Please note that for models manufactured before 2000, the logic may differ, but most refrigerators in use belong to a later period.
| FD code (first 2 digits) | Decade of manufacture | Calculation example | Year release |
|---|---|---|---|
| 96 - 99 | 2020s (2020-2023) | 98 + 1 = 2020 (conditionally) | 2020 |
| 86 - 95 | 2010s (2010-2019) | FD 89 = 2000 + 89 = 2010? | 2013 (example) |
| 76 - 85 | 2000s (2000-2009) | FD 78 = 2000 + 78 | 2002 |
| 66 - 75 | 1990s (1990-1999) | FD 70 = 1900 + 70 | 1994 |
| Second 2 digits | Month of issue | 01 - 12 | January - December |
A more accurate formula for modern models (after 2000): to the number formed by the first two digits of FD, you need to add 20 (if it is the 2020s) or 10 (if it is the 2010s), but most often a simple rule is used: FD 99 = 2023, FD 98 = 2022 and so on, in 10-year increments for previous decades. But the safest way is to use online calculators or refer to the table above, which shows the principle.
⚠️ Attention: The production date coding system of the BSH concern (owner of Bosch) changed periodically. If the standard formula gives an absurd result (for example, 2090), your model may be in the transition period.
Differences between the serial number and the product number
A common mistake made by users is confusion between the product number (E-Nr) and a unique serial number (SN or S-Nr). The product number is a model code that is the same for all refrigerators of a certain modification. It is needed to select spare parts and instructions. The serial number is a unique “passport” of a specific instance, which is not repeated on any other device in the world.
The serial number is usually longer and consists exclusively of numbers (often 16 characters). It is used by the manufacturer to track warranty cases, repair history and logistics. If you contact a service center for warranty repairs, you will definitely be asked for exactly S-Nr. To independently search for instructions or buy door magnets, you need E-Nr.
In some older models, these numbers could be separated on different stickers, but in modern refrigerators Bosch they are usually located side by side on one label. Read the field headings carefully: Type or Model is E-Nr, and Serial No or F-No is the serial number.
- 🔢 E-Nr: needed to search for spare parts, manuals, accessories.
- 🔢 S-Nr: needed for warranty, registration, service.
- 🔢 FD: needed to determine the age and date of manufacture.
- 🔢 P-Nr: production (batch) number, important for internal plant reports.
What to do if the sticker is damaged or missing
The situation when the information sticker has been erased, peeled off or was removed by the previous owner is not uncommon. Aggressive detergents, moisture and mechanical friction can destroy the markings within a few years of use. In this case, searching for spare parts turns into a complex task that requires visual identification of components.
If there is no sticker, try to find its remains on the original packaging (cardboard box), if you saved it. Also, the model number is often duplicated in the warranty card or operating instructions that came with the kit. Check the documents purchased along with the refrigerator - there may be a sticker pasted in there or a number written in by hand by the seller.
As a last resort, when the documents are lost and there is no sticker, only the visual method remains. You will need to remove the back cover of the refrigerator (be sure to unplug the device!) and look for markings on the compressor itself or the electronic board. However, codes on the units often relate to the components themselves, and not to the refrigerator as a whole, so this method requires high qualifications.
☑️ Action plan for a lost sticker
It is not recommended to rely on memory or an approximate model description when ordering expensive parts such as a control board. An error in one digit may result in the purchase of an incompatible module that cannot be returned.
Frequent errors when reading data
One common problem is poor lighting or dirty stickers. The greasy residue found on kitchen appliances can hide important symbols. Do not try to scrub the sticker with aggressive chemicals or abrasive sponges - this will completely destroy the text. It is better to use a soft cloth slightly moistened with alcohol or glass cleaner, acting with extreme caution.
Users also often confuse letters and numbers: B and 8, O and 0, I and 1. Codes Bosch usually use a font where these characters are distinguishable, but at a quick glance it is easy to make a mistake. Always double-check questionable signs by comparing them to other symbols on the sticker or using context (for example, there are often letters at the end of the model code).
Another mistake is trying to find the number on the outside decorative panel of the door (especially if it is glass or with a pattern). Factory markings are almost never applied to the front part, so as not to spoil the design. Look only on technical surfaces: inside the cameras, on the ends or at the back.
Is it possible to restore a worn-out sticker?
It is impossible to restore the factory sticker yourself. However, if you know the exact model, you can order a copy of the nameplate from specialized workshops or download and print the label yourself to stick it next to the original for convenience.
The relationship between the model number and parts compatibility
Understanding the model number is critical to compatibility. Refrigerators Bosch are assembled at different factories (in Poland, Turkey, Russia, Germany), and even with the same appearance, the internal contents may differ. The number E-Nr guarantees that you are ordering a part that will physically fit your unit.
For example, shelves, light bulbs, filters ActiveAir and seals are tied to specific series. Using a seal from a similar model can lead to a loose door seal, overloading the compressor and food spoilage. Accuracy in identification here saves money and nerves.
When ordering through online spare parts stores, the “Model” field is required. The filtering system filters out thousands of incompatible options based on the code you entered. E-Nr. Ignoring this step turns the purchase into a lottery with a low chance of success.
Where exactly is the number on the built-in Bosch refrigerator?
In built-in models Bosch the sticker can most often be found on the inner end of the refrigerator door (on the side when you open the door). If it is not there, check the lower part of the facade (basement) or the side wall inside the niche, if there is access. Sometimes the number is duplicated on the technical card included in the instructions.
What does the FD code in the refrigerator number mean?
The code FD (Fabrication Date) indicates the production date of the device. It consists of 4 digits. The first two digits indicate the year (including the decade), and the second two indicate the month of issue. This allows you to accurately determine the age of the equipment, which is important when assessing its residual life.
Is it possible to find the serial number in the refrigerator menu?
In some modern models Bosch with a digital display and function Home Connect technical information, including the model number and software version, can be found in the settings menu (usually the "Info" or "Service" section). However, the full serial number (S-Nr) is most often indicated on the physical sticker.
Why do you need to know the year of manufacture of a Bosch refrigerator?
Knowing the year of manufacture is necessary for the correct selection of spare parts, since the configuration of models has changed over the years. In addition, this is important for determining the warranty status and assessing the wear of main components, such as the compressor and defrost system.