Air-conditioning systems come under our spotlight. Most modern cars come fitted with aircon, and they do require maintaining, albeit normally when it stops working. We discuss how the system operates, along with looking at each component in detail. Plus, picture step guides to fitting a replacement condenser and compressor. Project cars – our 2002 Range Rover V8 receives an Android head unit – with DAB and mobile phone connectivity; while the 2010 Lexus IS 250 V6 is given an engine service. We renew a clutch on a Vauxhall Astra J and fit new front lower suspension arms to a BMW 5-series on the driveway.

Air-conditioning systems come under our spotlight. Most modern cars come fitted with aircon, and they do require maintaining, albeit normally when it stops working. We discuss how the system operates, along with looking at each component in detail. Plus, picture step guides to fitting a replacement condenser and compressor. Project cars – our 2....