LR017030 - Heater Matrix – With A/C C-Selector Fork part of the rear body

part of the rear body closure assembly

and Series 3 manual gearbox assembly

It transfers rotation from the crankshaft belt drive to the alternator rotor

Side Steps - a matched left- and right-hand pair of fixed tubular side runners that bolt to the sill and chassis mounting points

LR017030 - Heater Matrix – With A/C C-Selector Fork part of the rear bodyHeater Matrix is the cabin heat exchanger within the HVAC heater assembly, supplied for vehicles fitted with air conditioning. Engine coolant is circulated through the matrix while the blower draws cabin air across its fins, transferring heat into the air stream feeding the dashboard vents. It sits within the heater box alongside the air conditioning evaporator.