This high-quality VALEO EGR valve (703254) is a direct replacement for Genuine Part Number Reference: A6421401060. Also known as an exhaust gas recirculation valve, EGR control valve or exhaust gas recirculation control unit, it meters recirculated exhaust gas back into the inlet on the Mercedes-Benz OM642 3.0 litre V6 diesel. Carbon build up and electrical failure in this valve are a common cause of limp mode, poor throttle response, rough running and emissions fault codes on OM642 engines.

Part Details:

  • Direct replacement for OEM part number A6421401060
  • Also replaces Mercedes-Benz part number 6421401060
  • Electrically operated, 5 pin connector
  • Supplied with gaskets and seals
  • Euro 4 (D4) emissions specification
  • VALEO original equipment quality
  • Factory-style fit and function

Compatible With:

  • Mercedes-Benz C-Class (W204, S204) – C 300 CDI 4matic, C 350 CDI, C 350 CDI 4matic – 2007 to 2014
  • Mercedes-Benz E-Class (W212, S212, C207, A207) – E 300 CDI, E 300 BlueTEC, E 350 CDI, E 350 CDI 4matic, E 350 BlueTEC, E 350 BlueTEC 4matic, E 350 d – 2009 to 2016
  • Mercedes-Benz CLS (C218, X218) – CLS 350 CDI, CLS 350 CDI 4matic, CLS 350 BlueTEC, CLS 350 d, CLS 350 d 4matic – 2011 to 2017
  • Mercedes-Benz M-Class (W164, W166) – ML 300 CDI 4matic, ML 320 CDI 4matic, ML 350 CDI 4matic, ML 350 BlueTEC 4matic – 2005 to 2015
  • Mercedes-Benz GL-Class (X164, X166) – GL 320 CDI 4matic, GL 350 CDI 4matic, GL 350 BlueTEC 4matic – 2006 to 2015
  • Mercedes-Benz GLE (C292) – GLE 350 d 4matic – 2015 to 2019
  • Mercedes-Benz GLK (X204) – GLK 320 CDI 4matic, GLK 350 CDI 4matic – 2008 to 2015
  • Mercedes-Benz R-Class (W251) – R 320 CDI 4matic, R 350 CDI 4matic – 2005 to 2017
  • Mercedes-Benz S-Class (W221) – S 350 CDI, S 350 BlueTEC, S 350 BlueTEC 4matic – 2005 to 2013
  • Mercedes-Benz Vito and Viano (W639) – 122 CDI, CDI 3.0 – 2003 to 2014

Engine Codes:
OM642

Year Range:
2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019

This is a VALEO original equipment part. It is not supplied in genuine Mercedes-Benz packaging.

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✅ Fitment Confirmation


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