GARY STRETTON
• Tools: General workshop kit, metal shears, angle grinder with thin cutting disc, files, drill and bits, multimeter, wiring, hot air gun, bench vice or metal folder
TIME
5 HOURS
COST
£120
DIFFICULTY RATING
The tendency with Series III heater blower efficiency is for it to fall somewhere between useless and adequate, depending whether all components are functioning correctly. Importantly, the lower dash vents and hoses can hemorrhage airflow if the seals and flaps are not in perfect order.
The heater matrix, being an independent unit from the blower fan, should be treated as such and dealt with separately. Fitting an uprated heater matrix, along with improved airflow to improve heat output is easy enough, although wonders can be worked by flushing and cleaning a standard matrix. Mine…
