Mercedes W203 M271 Lambda Sensor
FAE 75021 | Pre-Catalytic | Precise Mixture Control
The FAE (75021) oxygen sensor developed for Mercedes-Benz W203 (M271 Engine) vehicles maintains exhaust emission values at an ideal level, providing fuel savings and optimizing engine performance.
- Fast Response Time: Detects changes in engine operating conditions within milliseconds and transmits to the ECU.
- Fuel Savings: Minimizes fuel consumption by preventing unnecessary rich mixtures and protects the catalyst.
- Heat-Resistant Body: Special stainless structure resistant to high temperatures and corrosion in the exhaust line.
- Plug-and-Play Socket: Easy installation with 100% compatibility using original cable length and Mercedes socket design.
Technical Details
| Brand |
FAE (Spain) |
| Product Code |
75021 |
| Possible OEM Reference |
001 540 50 17 / 002 540 01 17 |
| Position |
Pre-Catalytic (Regulation Sensor) |
| Compatible Engine |
M271.940 / M271.946 (Compressor) |
Expert Recommendation
Why FAE? Signal quality is vital in lambda sensors. FAE is one of the European brands that meets Mercedes-Benz's signal ranges with the highest precision.
Installation and Maintenance Tip: When installing the sensor, ensure that the high-temperature resistant grease (anti-seize) does not come into contact with the sensor head. Clearing old error codes from the engine brain (ECU) and resetting mixture values after replacement ensures optimal performance.
This product is equivalent to the following OEM/original part numbers. You can search by your vehicle's original part number.
Product CodeFAE 75021
BrandFAE
Compatible vehicle information not yet added.
