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Renault Master AdBlue Issue

My 2018 Renault Master diesel is acting up. It has 129560 km. The AdBlue tank shows empty, the dash is showing errors, and it won't start! Error memory points to a defective AdBlue output from the tank to the dosing unit. Has anyone else seen this? I was quoted 250€ for the fix.

4 comment(s)

I had similar issues with my Master. Is the service light on too? It seems like a common issue with the DEF fluid system. It might be worth checking the injection system before spending 250€. What error code is it showing?

The service light is on. The error code is P20E8 - 'Reductant injection valve circuit range/performance'. Does that sound familiar? Is there anything else I should check before going to the workshop?

Yep, that's the one I had. I tried fixing it myself, but ended up taking it in. They replaced the AdBlue injector and cleared the codes, which solved the problem. It's probably best to let professionals handle it because emission standards can be tricky.

Thanks! I'll get it booked in and hopefully that'll be the end of it. Thanks again for confirming my suspicions!

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