Originally posted by dvng@Dec 20 2005, 08:50 AM
BMW originally comes in the 2.5litre engine, however the 5 series also comes in a diesel form which is the 525tds..hence to distance the 525i from the diesel model and 528iSE , BMW (for god knows whatever reason) decided to launch the 523i which was detuned from 192bhp to 170 bhp and called it 523i and also to compete with E230 Mercedes(on paper). The six cylinder range at that time consisted of the 520i with 150bhp, the 523i with 170bhp and the 528i with 193bhp. All cars was launched together...However in September 2000 the e39 was revamped with xenon headlamps, clear indicators and a reshaped grille with matching colour coded bumpers. The 520i in 2000, used the new 2.2 litre engine giving 170bhp, the 523i was replaced by the 525i with the 2.5 unit original 192bhp and the new 530i with a whopping 231bhp replacing the 528i....these engine was also carried forward to the E60 with mild modifications and was later changed to the new 'N' series engines..in 2005...