What is code P20e9 for?

What is your question?

Engine light on after replacing DEF Heater and Pump OBCII gave code P20e9 but I can't find the explination of the code. Not a full time mechanic just an 74 year old golf pro who likes to work on his OLD car. :) Thanks

What makes this problem better or worse?

How long has your 2009 Mercedes-Benz ML320 had this problem?

couple of days

Visitor

in Arroyo Grande CA

Feb 14, 2021

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What are the best Mercedes-Benz repair shops?

RepairPal Certified shops can diagnose and repair your 2009 Mercedes-Benz ML320. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.

2009 Mercedes-Benz ML320 auto repair 2009 Mercedes-Benz ML320 estimates 2009 Mercedes-Benz ML320 questions 2009 Mercedes-Benz ML320 problems 2009 Mercedes-Benz ML320 recalls

What is your question?

Popular Answer

What is code P20e9 for?

What is your question?

What makes this problem better or worse?

How long has your 2009 Mercedes-Benz ML320 had this problem?

couple of days

Visitor

in Arroyo Grande CA

Feb 14, 2021

1 Reply

Popular Answer

DaveJMon Feb 15, 2021

I do not see P20E9 in the workshop manual for a 2009 Mercedes Benz ML320. Perhaps I don't have complete information, but I'm wondering if it's a typographical error. Nonetheless, here's the info we have on RepairPal: https://repairpal.com/obd-ii-code-p20e9-reductant-pressure-too-high

Join the conversation!

Popular Answer

What are the best Mercedes-Benz repair shops?

RepairPal Certified shops can diagnose and repair your 2009 Mercedes-Benz ML320. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.

2009 Mercedes-Benz ML320 auto repair 2009 Mercedes-Benz ML320 estimates 2009 Mercedes-Benz ML320 questions 2009 Mercedes-Benz ML320 problems 2009 Mercedes-Benz ML320 recalls

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Popular Answer

DaveJMon Feb 15, 2021

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What is code P20e9 for?

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