Background
BMW’s E39 was the consummate luxury car and one of the most effective saloon cars ever. The fourth generation of the 5-series, it built on decades of experience to set new standards in its class – in fact it was still the class-leader when it was replaced by the E60 in 2003.
Designed by Joji Nagashima who also designed the Z3 and the E36 and E90 3-series, it was the first 5-series to use significant amounts of aluminium in the structure, and in both front and rear suspensions, keeping weight down and minimising rust issues.
These cars were built to do stellar mileages, and most have done so – especially the diesels. The M57 2497cc straight-six diesel was new for 2000: with twin overhead camshafts, four valves per cylinder, Bosch common-rail injection and a Garrett turbocharger and intercooler, it was state of the art – while also retaining a cast iron block for maximum strength and sound reduction, and chain drive for the cams to avoid the worry of belt failure. In the E39 525d, it produced a healthy 161bhp at 4000rpm and a stump-pulling torque of 258lb ft at 2000rpm – making for rapid and relaxed driving with little need to row up and down the five-speed ZF390 gearbox.







