Auxiliary heater. auxiliary heater; Engine Code: D 4204 T4. VOLVO V70 III (135) D2 Estate Diesel 03/2015 04/2016 FWD 16 120 88. VOLVO S60 II (134) D2 Saloon Diesel 03/2015 05/2018 FWD 16 120 88. VOLVO V60 I (155) D2 Estate Diesel 03/2015 05/2018 FWD 16 120 88.