Fault 01020 Water Pump V36

[ghostivv]

Hi all,

No hot air on A5 2012 1.8tfsi. Scan came up with above fault code. There's an auxiliary electrical pump with part no 06H121601M and not sure but another one seems to be under intake? or should I first take chance with the heater control valve (4H0121671G)?

Thanks.

 

[ghostivv]

Sorted. It was heater control valve 4H0121671D. Bought used one from ebay and all good now.