Audi Q5 Reducing Agent Pump packing up

marco79

Expert Member
Joined
Sep 18, 2008
Messages
3,697
My colleague's Audi Q5 had the warning light ''AdBlue fluid low'' come up on the OBC. He took the car for a diagnostic test at an Audi dealership and the outcome is he has to fork out just over R20k for the Reducing Agent Pump which is stuffed.

How common are these Reducing Agent Pump failures seeing that he only has 105 000 km on his vehicle? And anyone know a good Audi independent mechanic in Cape Town (or Cape Peninsula) that can have this replaced at a more reasonable cost?
 

qscwbt

Expert Member
Joined
Feb 24, 2014
Messages
2,004
AdBlue is a fluid made up of a mix of urea and deionized water which is squirted into the exhaust system, helping to reduce nitrous oxide emissions produced by diesel engines.

Just ignore it, car will be fine. it has zero effect on the car or performance. I will not pay for a little pump that spray water into the exhaust.

Go to any tuning company (REVO) they will remove the fault code and let the car thing the stupid sprayer is working. And you never have to buy adblue again
 

thechamp

Honorary Master
Joined
Feb 26, 2011
Messages
27,199
But can't this fluid be topped up? Isn't Audi taking a chance by saying the pump is faulty, wouldn't you get an engine warning light for that?
 

jvrs

Well-Known Member
Joined
Apr 8, 2013
Messages
459
But can't this fluid be topped up? Isn't Audi taking a chance by saying the pump is faulty, wouldn't you get an engine warning light for that?
Yes, you have to fill the little tank. In EU you find it at petrol stations everywhere. In SA not so common.
 
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