Audi: Passenger Compartment Not Warming Up? Code B10D004

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Audi Tech Tip: Passenger Compartment Not Warming Up?

Code B10D004 will indicate a coolant circulation pump failure.

Tomorrow's Technician Staff
By Tomorrow's Technician Staff
Tomorrow’s Tech (TT) delivers technical information for servicing today’s vehicles to more than 40,000 automotive students enrolled in more than 1,100 technical and vocational schools across the country.
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Models: 

A6/A7: 2012-2015 

Related Articles

A8/S8/S8+: 2014-2017

Bulletin: 191790

The customer may complain of a lack of heat in the passenger compartment even if the vehicle has been running for a long period. In the Climatronic control module, one or two DTC codes will be present. Code B10D004 will indicate a coolant circulation pump failure.

Code B11D501 indicates the supply voltage for terminal 30 of the coolant circulation pump has an electrical fault. 

To remedy the problem, the V50 coolant circulation pump needs to be replaced. 

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