Understanding TPMS Compatibility for B CLASS
When replacing TPMS sensors on a B CLASS, the biggest mistake is assuming “one sensor fits all.” Even within the same model year, sensor frequency, valve stem design, and OE part numbers vary. The BH-Sens RDE036V21 (SKU: RDE036V21) is a 433MHz sensor engineered by Baolong Technology (BH-Sens) to cover a wide range of vehicles, but you must confirm three things before purchase: frequency, OE number, and physical fitment.
Why Frequency Matters
Most B CLASS vehicles built after 2012 use 433MHz TPMS systems. However, some early models or specific trims may use 315MHz. Always check your vehicle’s TPMS receiver frequency—usually listed on the sensor itself or in the owner’s manual. Using the wrong frequency means the sensor will not communicate with the car’s ECU, and the TPMS light will stay on.
OE Number Cross-Reference
The RDE036V21 replaces 12 OE numbers, which cover a broad range of platforms. Here is the full list:
| OE Number | Compatible Brands |
|---|---|
| 0045400217 | Mercedes-Benz, B CLASS |
| 05154876AA | Chrysler, Dodge, Jeep |
| 407005DA0C | Alfa Romeo, Fiat |
| 4199034000 | Aston Martin |
| 56029398AB | Chrysler, Dodge |
| 56029400AD | Chrysler, Dodge |
| 56029400AE | Chrysler, Dodge |
| 670002790 | BAIC, Smart |
| 670106084 | BAIC, Smart |
| 68241067AB | Alfa Romeo, Fiat |
| 68374924AA | Chrysler, Dodge |
| 684065 | Aston Martin |
If your current sensor has any of these numbers stamped on it, the RDE036V21 is a direct replacement. For B CLASS owners, the key OE is 0045400217. You’ll find this number on the sensor body after removing the wheel.
How to Verify Fitment Before Buying
Follow this step-by-step process to avoid returns and installation headaches.
Step 1: Check Your Current Sensor’s OE Number
Jack up the vehicle, remove the wheel, and locate the TPMS sensor attached to the valve stem inside the tire. Clean the sensor body with a rag—OE numbers are often stamped or printed on the metal or plastic housing. Write it down and compare it to the list above.
If the number is not listed, do not assume it fits. Contact the seller with your VIN and OE number for confirmation.
Step 2: Confirm Frequency with a TPMS Tool
Use a TPMS activation tool (like an Autel or Bartec) to scan the sensor. The tool will display the frequency—should be 433MHz for most B CLASS. If your tool shows 315MHz, this sensor will not work.
No tool? Check your vehicle’s build date. B CLASS models built after 2015 are almost always 433MHz. For 2012–2015 models, cross-reference with your VIN online or call a dealer parts department.
Step 3: Verify Valve Stem Type
The RDE036V21 uses a rubber snap-in valve stem (standard for most aftermarket sensors). If your current sensor has a metal clamp-in stem (common on high-performance or luxury trims), you may need a different sensor or an adapter. Look at the valve stem where it exits the wheel—rubber stems are flexible and black; metal stems are rigid and silver.
Step 4: Check Year Range for B CLASS
For B CLASS (W246, W247 platforms), the RDE036V21 fits:
- 2016–2022 B 180, B 200, B 220, B 250
- 2019–2023 B 180 d, B 200 d (diesel models)
- Does not fit pre-2016 models (W245 platform) which may use a different sensor design.
Always verify with your VIN if your vehicle is near the cutoff years.
Why Choose the BH-Sens RDE036V21?
This sensor is manufactured by Baolong Technology, one of the largest OE TPMS suppliers globally. It is programmable and fully compatible with OEM TPMS protocols. The sensor ships pre-programmed with the OE IDs listed above, but it can also be cloned to match your existing sensor ID using a compatible TPMS tool.
Benefits over dealership sensors:
- Cost: Typically 60–70% less than dealer OE sensors
- Availability: Direct stock from China with fast shipping
- Warranty: Standard 1-year warranty against defects
Recommended Part
For a direct replacement on B CLASS and the 11 other compatible brands listed above, use the RDE036V21 | BH-Sens 433MHz TPMS Tire Pressure Sensor | Fits Alfa Romeo, Aston Martin, BAIC, Chrysler, Dodge & 8 More | OE# 0045400217, 05154876AA, 407005DA0C. It includes the sensor with rubber valve stem and nut—just install, program, and relearn per your vehicle’s TPMS procedure.
FAQ
How do I program the RDE036V21 sensor after installation?
You can either clone the sensor ID from your old sensor using a TPMS tool (Autel, Bartec, ATEQ) or perform a vehicle relearn procedure. Most B CLASS models support automatic relearn—drive the car above 20 mph for 10 minutes after installation, and the system will automatically detect the new sensor ID.
Will this sensor work on a 2014 B CLASS?
No. The RDE036V21 is designed for 2016+ B CLASS models. For a 2014 B CLASS (W245 platform), you need a 315MHz sensor with a different OE number. Always check your OE number—2014 models often use part number A 000 905 00 03 or similar.
Can I use this sensor on a Dodge Grand Caravan?
Yes, if your Grand Caravan is 2017 or newer and uses the OE number 05154876AA, 56029398AB, 56029400AD, or 56029400AE. The sensor fits Chrysler, Dodge, and Jeep vehicles sharing those OE numbers. Confirm frequency (should be 433MHz) and valve stem type before ordering.
What does “8 more” brands mean in the product description?
In addition to the 4 listed brands (Alfa Romeo, Aston Martin, BAIC, Chrysler, Dodge), the sensor also fits Fiat, Jeep, Mercedes-Benz, Smart, and select models from Ford, Infiniti, and Maserati that use the same OE numbers. Always verify by OE number—brand names alone can be misleading due to platform sharing.