The EGR valve (vanne AGR) is a vital part of the emissions and combustion control system on diesel-powered Mercedes-Benz A-Class (W169) and B-Class (W245) vehicles. It recirculates a portion of exhaust gases back into the intake system to reduce peak combustion temperatures and cut harmful nitrogen oxide (NOx) emissions while improving fuel combustion efficiency. Over time, soot and carbon deposits can cause the valve to stick or fail, resulting in rough idle, reduced performance, increased smoke, poor fuel economy, or engine warning lights. This replacement EGR valve is designed to meet or exceed original equipment specifications and fits vehicles equipped with OM640 series diesel engines.

OEM Number: 6401400760, 6401401460, 6401401860, A6401400760, 6401401960, A6401401460

Placement on Vehicle : Front

Operating Mode : Electric

Number of Pins : 4 Pin Connector

Connector Shape : Oval

Quantity : 1

Make	Model	Variant	Type	Engine	Chassis	Year
Mercedes-Benz	A-Class	Diesel Hatch	A 160 CDI	1991cc 60KW 82HP OM 640.942	FWD -- W169	2004-2012
Mercedes-Benz	A-Class	Diesel Hatch	A 180 CDI	1991cc 80KW 109HP OM 640.940	FWD -- W169	2004-2012
Mercedes-Benz	A-Class	Diesel Hatch	A 200 CDI	1991cc 100KW 136HP OM 640.941	FWD -- W169	2004-2012
Mercedes-Benz	A-Class	Diesel Hatch	A 200 CDI	1991cc 103KW 140HP OM 640.941	FWD -- W169	2004-2012
Mercedes-Benz	B-Class	Diesel Hatch	B 180 CDI	1991cc 80KW 109HP OM 640.940	FWD -- W245	2005-2011
Mercedes-Benz	B-Class	Diesel Hatch	B 200 CDI	1991cc 100KW 136HP OM 640.941	FWD -- W245	2005-2011
Mercedes-Benz	B-Class	Diesel Hatch	B 200 CDI	1991cc 103KW 140HP OM 640.941	FWD -- W245	2005-2011
Make	Model	Variant	Type	Engine	Chassis	Year

Our SKU: TMA6401401860_94

All our Egr Valve Vanne Agr For Mercedes A-class (W169), B-class Sports Tourer (W245) are OEM quality and reliable after market car parts. This Egr Valve Vanne Agr For Mercedes A-class (W169), B-class Sports Tourer (W245) is specifically compatible with Mercedes-Benz: A-Class, B-Class, .

Please use our make-model-year tool to check this part's compatibility with your vehicle. However, please note that our tool is for reference only and we recommend that you check the part number on your old unit prior to purchasing.

If you are still not sure about the compatibility of this part to your vehicle, please supply us with the VIN number or Reg number in our live chat or contact form! You can also find details on our purchasing & shipping guide here.

Key Benefits

Restores Emission Control Performance
The EGR valve helps reduce nitrogen oxide (NOx) emissions and maintain regulatory compliance by recirculating exhaust gas into the combustion cycle, lowering combustion temperatures.

Improves Engine Efficiency & Driveability
A clean, fully functioning EGR valve supports smoother idle, better acceleration response, and a more stable air-fuel mixture, enhancing overall diesel performance.

OEM-Equivalent Fitment
Engineered as a direct replacement for Mercedes-Benz references like A6401400760, 6401400760, A6401401460 / A6401401860, this valve installs easily without modifications when matched to the correct vehicle application.

Compatible with Multiple Models & Engines
Fits a range of Mercedes diesel applications including:

• A-Class W169: A160 CDI, A180 CDI, A200 CDI (2004-2012)

• B-Class W245: B180 CDI, B200 CDI (2005-2011)
  All with OM640 series engines such as OM640.940 / OM640.941 / OM640.942.

Durable Construction for Long-Term Use
Manufactured from high-quality materials designed to withstand high exhaust temperatures and regular operation, providing dependable performance and reliability over time.

Frequently Asked Questions (FAQs)

Q: What does an EGR valve do?
A: The Exhaust Gas Recirculation (EGR) valve reduces combustion chamber temperatures by recirculating a controlled amount of exhaust gases back into the intake, which cuts NOx emissions and helps improve fuel economy.

Q: What are symptoms of a failing EGR valve?
A: Common signs include rough idle, reduced engine power, hesitation under acceleration, increased white or black exhaust smoke, and the illumination of the engine warning light.

Q: Is this the correct EGR valve for my Mercedes A-Class or B-Class?
A: This valve is designed to fit Mercedes-Benz A-Class (W169) and B-Class (W245) diesel models equipped with OM640 engines; always verify your OEM part number (e.g., A6401400760) or match with your VIN before ordering.

Q: Can a clogged EGR valve be cleaned instead of replaced?
A: In some cases cleaning can temporarily improve performance, but heavy carbon buildup or mechanical wear usually necessitates full replacement to ensure long-term reliability.

Q: Should I replace the gasket/seal when fitting the EGR valve?
A: Yes — always install a new gasket or seal when replacing the valve to ensure a proper airtight connection and prevent leaks.